/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 14:55:41,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 14:55:41,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 14:55:41,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 14:55:41,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 14:55:41,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 14:55:41,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 14:55:41,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 14:55:41,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 14:55:41,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 14:55:41,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 14:55:41,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 14:55:41,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 14:55:41,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 14:55:41,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 14:55:41,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 14:55:41,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 14:55:41,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 14:55:41,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 14:55:41,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 14:55:41,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 14:55:41,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 14:55:41,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 14:55:41,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 14:55:41,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 14:55:41,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 14:55:41,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 14:55:41,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 14:55:41,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 14:55:41,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 14:55:41,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 14:55:41,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 14:55:41,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 14:55:41,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 14:55:41,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 14:55:41,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 14:55:41,160 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-RepeatedSemanticLbe.epf [2021-03-25 14:55:41,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 14:55:41,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 14:55:41,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 14:55:41,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 14:55:41,204 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 14:55:41,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 14:55:41,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 14:55:41,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 14:55:41,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 14:55:41,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 14:55:41,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 14:55:41,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 14:55:41,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 14:55:41,206 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 14:55:41,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 14:55:41,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 14:55:41,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 14:55:41,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 14:55:41,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 14:55:41,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 14:55:41,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 14:55:41,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:55:41,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 14:55:41,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 14:55:41,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 14:55:41,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 14:55:41,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 14:55:41,209 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 14:55:41,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 14:55:41,209 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 14:55:41,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 14:55:41,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 14:55:41,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 14:55:41,549 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 14:55:41,550 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 14:55:41,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_rmo.oepc.i [2021-03-25 14:55:41,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d67e7e8d/93fdb04f98174859af56598d8315a5a2/FLAG168d8c480 [2021-03-25 14:55:42,474 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 14:55:42,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.oepc.i [2021-03-25 14:55:42,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d67e7e8d/93fdb04f98174859af56598d8315a5a2/FLAG168d8c480 [2021-03-25 14:55:42,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d67e7e8d/93fdb04f98174859af56598d8315a5a2 [2021-03-25 14:55:42,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 14:55:42,643 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 14:55:42,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 14:55:42,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 14:55:42,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 14:55:42,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:55:42" (1/1) ... [2021-03-25 14:55:42,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a6b4179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:42, skipping insertion in model container [2021-03-25 14:55:42,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:55:42" (1/1) ... [2021-03-25 14:55:42,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 14:55:42,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 14:55:42,874 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/safe017_rmo.oepc.i[950,963] [2021-03-25 14:55:43,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:55:43,156 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 14:55:43,166 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/safe017_rmo.oepc.i[950,963] [2021-03-25 14:55:43,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:55:43,252 INFO L208 MainTranslator]: Completed translation [2021-03-25 14:55:43,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43 WrapperNode [2021-03-25 14:55:43,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 14:55:43,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 14:55:43,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 14:55:43,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 14:55:43,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (1/1) ... [2021-03-25 14:55:43,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (1/1) ... [2021-03-25 14:55:43,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 14:55:43,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 14:55:43,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 14:55:43,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 14:55:43,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (1/1) ... [2021-03-25 14:55:43,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (1/1) ... [2021-03-25 14:55:43,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (1/1) ... [2021-03-25 14:55:43,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (1/1) ... [2021-03-25 14:55:43,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (1/1) ... [2021-03-25 14:55:43,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (1/1) ... [2021-03-25 14:55:43,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (1/1) ... [2021-03-25 14:55:43,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 14:55:43,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 14:55:43,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 14:55:43,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 14:55:43,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:55:43,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 14:55:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 14:55:43,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 14:55:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 14:55:43,406 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 14:55:43,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 14:55:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 14:55:43,407 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 14:55:43,407 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 14:55:43,407 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 14:55:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 14:55:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 14:55:43,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 14:55:43,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 14:55:43,409 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 14:55:45,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 14:55:45,105 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 14:55:45,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:55:45 BoogieIcfgContainer [2021-03-25 14:55:45,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 14:55:45,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 14:55:45,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 14:55:45,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 14:55:45,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:55:42" (1/3) ... [2021-03-25 14:55:45,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c909950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:55:45, skipping insertion in model container [2021-03-25 14:55:45,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:55:43" (2/3) ... [2021-03-25 14:55:45,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c909950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:55:45, skipping insertion in model container [2021-03-25 14:55:45,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:55:45" (3/3) ... [2021-03-25 14:55:45,113 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_rmo.oepc.i [2021-03-25 14:55:45,118 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 14:55:45,122 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 14:55:45,123 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 14:55:45,151 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,151 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,151 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,152 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,152 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,152 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,152 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,152 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,152 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,152 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,152 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,153 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,153 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,153 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,153 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,153 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,153 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,153 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,156 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,156 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,156 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,156 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,157 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,157 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,159 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,159 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,159 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,159 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,159 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,159 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,160 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,160 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,160 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,161 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,162 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,163 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,165 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,166 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,166 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,168 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,169 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,171 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,172 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,172 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,172 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,172 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,172 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,172 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:55:45,173 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 14:55:45,189 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 14:55:45,206 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 14:55:45,206 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 14:55:45,206 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 14:55:45,206 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 14:55:45,207 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 14:55:45,207 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 14:55:45,207 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 14:55:45,207 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 14:55:45,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2021-03-25 14:55:45,244 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-25 14:55:45,244 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:55:45,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-25 14:55:45,248 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2021-03-25 14:55:45,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 92 transitions, 193 flow [2021-03-25 14:55:45,253 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:45,262 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-25 14:55:45,265 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-25 14:55:45,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 193 flow [2021-03-25 14:55:45,281 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-25 14:55:45,281 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:55:45,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-25 14:55:45,284 INFO L142 LiptonReduction]: Number of co-enabled transitions 1602 [2021-03-25 14:55:47,058 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-03-25 14:55:47,434 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-25 14:55:48,907 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 310 DAG size of output: 265 [2021-03-25 14:55:49,538 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2021-03-25 14:55:49,825 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 14:55:50,189 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 14:55:50,297 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 14:55:51,439 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-25 14:55:51,741 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-03-25 14:55:52,389 WARN L205 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-25 14:55:52,969 WARN L205 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-25 14:55:53,226 INFO L154 LiptonReduction]: Checked pairs total: 2709 [2021-03-25 14:55:53,227 INFO L156 LiptonReduction]: Total number of compositions: 66 [2021-03-25 14:55:53,229 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7977 [2021-03-25 14:55:53,235 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-25 14:55:53,235 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:55:53,236 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:53,236 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:55:53,236 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:53,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:53,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1950849355, now seen corresponding path program 1 times [2021-03-25 14:55:53,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:53,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27687571] [2021-03-25 14:55:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:53,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:53,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:55:53,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:53,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:55:53,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:53,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27687571] [2021-03-25 14:55:53,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:53,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:55:53,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493434718] [2021-03-25 14:55:53,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:55:53,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:53,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:55:53,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:55:53,489 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2021-03-25 14:55:53,491 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:53,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:53,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2021-03-25 14:55:53,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:55:53,576 INFO L129 PetriNetUnfolder]: 69/176 cut-off events. [2021-03-25 14:55:53,576 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:55:53,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 176 events. 69/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 797 event pairs, 54 based on Foata normal form. 9/164 useless extension candidates. Maximal degree in co-relation 284. Up to 89 conditions per place. [2021-03-25 14:55:53,579 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 9 selfloop transitions, 2 changer transitions 3/39 dead transitions. [2021-03-25 14:55:53,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 113 flow [2021-03-25 14:55:53,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:55:53,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:55:53,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2021-03-25 14:55:53,591 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2021-03-25 14:55:53,591 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2021-03-25 14:55:53,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2021-03-25 14:55:53,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:55:53,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2021-03-25 14:55:53,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:53,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:53,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:53,612 INFO L185 Difference]: Start difference. First operand has 46 places, 37 transitions, 83 flow. Second operand 3 states and 427 transitions. [2021-03-25 14:55:53,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 113 flow [2021-03-25 14:55:53,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 110 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 14:55:53,617 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 74 flow [2021-03-25 14:55:53,618 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-03-25 14:55:53,619 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-03-25 14:55:53,619 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:53,619 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-25 14:55:53,621 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-25 14:55:53,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 74 flow [2021-03-25 14:55:53,630 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-25 14:55:53,630 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:55:53,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 14:55:53,632 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-25 14:55:54,300 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 14:55:54,593 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 14:55:55,157 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 14:55:55,754 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 14:55:56,410 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-25 14:55:56,600 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-25 14:55:56,650 INFO L154 LiptonReduction]: Checked pairs total: 1040 [2021-03-25 14:55:56,650 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 14:55:56,650 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3031 [2021-03-25 14:55:56,656 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 54 flow [2021-03-25 14:55:56,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:56,656 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:56,657 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] [2021-03-25 14:55:56,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 14:55:56,657 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:56,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:56,658 INFO L82 PathProgramCache]: Analyzing trace with hash 344608737, now seen corresponding path program 1 times [2021-03-25 14:55:56,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:56,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354401214] [2021-03-25 14:55:56,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:56,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:56,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:55:56,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:56,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:55:56,794 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 14:55:56,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 14:55:56,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:56,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354401214] [2021-03-25 14:55:56,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:56,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:55:56,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099657653] [2021-03-25 14:55:56,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:55:56,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:56,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:55:56,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:55:56,801 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 171 [2021-03-25 14:55:56,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:56,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:56,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 171 [2021-03-25 14:55:56,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:55:56,850 INFO L129 PetriNetUnfolder]: 12/53 cut-off events. [2021-03-25 14:55:56,850 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:55:56,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 53 events. 12/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 164 event pairs, 2 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 80. Up to 25 conditions per place. [2021-03-25 14:55:56,851 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 5 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-03-25 14:55:56,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 25 transitions, 76 flow [2021-03-25 14:55:56,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:55:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:55:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2021-03-25 14:55:56,854 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8538011695906432 [2021-03-25 14:55:56,854 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 438 transitions. [2021-03-25 14:55:56,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 438 transitions. [2021-03-25 14:55:56,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:55:56,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 438 transitions. [2021-03-25 14:55:56,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:56,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:56,857 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:56,857 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 54 flow. Second operand 3 states and 438 transitions. [2021-03-25 14:55:56,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 25 transitions, 76 flow [2021-03-25 14:55:56,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:55:56,858 INFO L241 Difference]: Finished difference. Result has 32 places, 24 transitions, 69 flow [2021-03-25 14:55:56,859 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2021-03-25 14:55:56,859 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -14 predicate places. [2021-03-25 14:55:56,859 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:56,859 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-25 14:55:56,859 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 24 transitions, 69 flow [2021-03-25 14:55:56,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 24 transitions, 69 flow [2021-03-25 14:55:56,864 INFO L129 PetriNetUnfolder]: 3/32 cut-off events. [2021-03-25 14:55:56,865 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:55:56,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 32 events. 3/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 44. Up to 10 conditions per place. [2021-03-25 14:55:56,865 INFO L142 LiptonReduction]: Number of co-enabled transitions 242 [2021-03-25 14:55:57,249 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-25 14:55:57,364 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-25 14:55:57,601 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-25 14:55:57,722 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-25 14:55:57,811 INFO L154 LiptonReduction]: Checked pairs total: 444 [2021-03-25 14:55:57,811 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:55:57,811 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 952 [2021-03-25 14:55:57,812 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 67 flow [2021-03-25 14:55:57,813 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:57,813 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:57,813 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:55:57,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 14:55:57,813 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:57,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:57,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1004352304, now seen corresponding path program 1 times [2021-03-25 14:55:57,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:57,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455117373] [2021-03-25 14:55:57,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:57,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:57,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:55:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:57,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455117373] [2021-03-25 14:55:57,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:57,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 14:55:57,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002279738] [2021-03-25 14:55:57,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:55:57,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:57,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:55:57,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:55:57,917 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 172 [2021-03-25 14:55:57,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:57,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:57,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 172 [2021-03-25 14:55:57,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:55:57,931 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-03-25 14:55:57,931 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 14:55:57,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 31 events. 3/31 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 1 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 48. Up to 10 conditions per place. [2021-03-25 14:55:57,932 INFO L132 encePairwiseOnDemand]: 169/172 looper letters, 1 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2021-03-25 14:55:57,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 73 flow [2021-03-25 14:55:57,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:55:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:55:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2021-03-25 14:55:57,934 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8798449612403101 [2021-03-25 14:55:57,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2021-03-25 14:55:57,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2021-03-25 14:55:57,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:55:57,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2021-03-25 14:55:57,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:57,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:57,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:57,938 INFO L185 Difference]: Start difference. First operand has 31 places, 23 transitions, 67 flow. Second operand 3 states and 454 transitions. [2021-03-25 14:55:57,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 73 flow [2021-03-25 14:55:57,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 23 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:55:57,939 INFO L241 Difference]: Finished difference. Result has 33 places, 23 transitions, 72 flow [2021-03-25 14:55:57,939 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=33, PETRI_TRANSITIONS=23} [2021-03-25 14:55:57,939 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -13 predicate places. [2021-03-25 14:55:57,939 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:57,939 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 23 transitions, 72 flow [2021-03-25 14:55:57,940 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 23 transitions, 72 flow [2021-03-25 14:55:57,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 23 transitions, 72 flow [2021-03-25 14:55:57,944 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-03-25 14:55:57,945 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 14:55:57,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 31 events. 3/31 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 47. Up to 10 conditions per place. [2021-03-25 14:55:57,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 240 [2021-03-25 14:55:57,986 INFO L154 LiptonReduction]: Checked pairs total: 209 [2021-03-25 14:55:57,986 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:55:57,987 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-25 14:55:57,987 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 23 transitions, 72 flow [2021-03-25 14:55:57,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:57,988 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:57,988 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:55:57,988 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 14:55:57,988 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:57,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:57,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1655303566, now seen corresponding path program 1 times [2021-03-25 14:55:57,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:57,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052671220] [2021-03-25 14:55:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:58,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:55:58,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:55:58,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:58,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052671220] [2021-03-25 14:55:58,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:58,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:55:58,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39815360] [2021-03-25 14:55:58,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:55:58,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:58,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:55:58,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:55:58,141 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 172 [2021-03-25 14:55:58,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:58,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 172 [2021-03-25 14:55:58,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:55:58,252 INFO L129 PetriNetUnfolder]: 104/220 cut-off events. [2021-03-25 14:55:58,252 INFO L130 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2021-03-25 14:55:58,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 220 events. 104/220 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 999 event pairs, 79 based on Foata normal form. 2/200 useless extension candidates. Maximal degree in co-relation 456. Up to 157 conditions per place. [2021-03-25 14:55:58,260 INFO L132 encePairwiseOnDemand]: 168/172 looper letters, 9 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2021-03-25 14:55:58,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 104 flow [2021-03-25 14:55:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:55:58,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:55:58,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2021-03-25 14:55:58,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7810077519379846 [2021-03-25 14:55:58,263 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2021-03-25 14:55:58,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2021-03-25 14:55:58,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:55:58,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2021-03-25 14:55:58,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,267 INFO L185 Difference]: Start difference. First operand has 33 places, 23 transitions, 72 flow. Second operand 3 states and 403 transitions. [2021-03-25 14:55:58,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 104 flow [2021-03-25 14:55:58,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 27 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:55:58,269 INFO L241 Difference]: Finished difference. Result has 34 places, 25 transitions, 87 flow [2021-03-25 14:55:58,269 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2021-03-25 14:55:58,269 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -12 predicate places. [2021-03-25 14:55:58,269 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:58,269 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 25 transitions, 87 flow [2021-03-25 14:55:58,270 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 25 transitions, 87 flow [2021-03-25 14:55:58,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 25 transitions, 87 flow [2021-03-25 14:55:58,277 INFO L129 PetriNetUnfolder]: 7/46 cut-off events. [2021-03-25 14:55:58,277 INFO L130 PetriNetUnfolder]: For 17/19 co-relation queries the response was YES. [2021-03-25 14:55:58,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 46 events. 7/46 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 137 event pairs, 3 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 85. Up to 15 conditions per place. [2021-03-25 14:55:58,278 INFO L142 LiptonReduction]: Number of co-enabled transitions 258 [2021-03-25 14:55:58,301 INFO L154 LiptonReduction]: Checked pairs total: 175 [2021-03-25 14:55:58,301 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:55:58,301 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-25 14:55:58,306 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 87 flow [2021-03-25 14:55:58,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 4 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,307 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:58,307 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:55:58,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 14:55:58,308 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:58,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:58,308 INFO L82 PathProgramCache]: Analyzing trace with hash 714472308, now seen corresponding path program 1 times [2021-03-25 14:55:58,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:58,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021485172] [2021-03-25 14:55:58,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:58,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:55:58,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:55:58,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:58,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021485172] [2021-03-25 14:55:58,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:58,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:55:58,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161912131] [2021-03-25 14:55:58,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:55:58,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:58,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:55:58,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:55:58,383 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 172 [2021-03-25 14:55:58,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:58,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 172 [2021-03-25 14:55:58,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:55:58,410 INFO L129 PetriNetUnfolder]: 8/61 cut-off events. [2021-03-25 14:55:58,410 INFO L130 PetriNetUnfolder]: For 58/79 co-relation queries the response was YES. [2021-03-25 14:55:58,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 61 events. 8/61 cut-off events. For 58/79 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 236 event pairs, 4 based on Foata normal form. 6/64 useless extension candidates. Maximal degree in co-relation 120. Up to 15 conditions per place. [2021-03-25 14:55:58,411 INFO L132 encePairwiseOnDemand]: 169/172 looper letters, 5 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2021-03-25 14:55:58,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 26 transitions, 106 flow [2021-03-25 14:55:58,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:55:58,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:55:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2021-03-25 14:55:58,414 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2021-03-25 14:55:58,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2021-03-25 14:55:58,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2021-03-25 14:55:58,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:55:58,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2021-03-25 14:55:58,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,417 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,418 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 87 flow. Second operand 3 states and 449 transitions. [2021-03-25 14:55:58,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 26 transitions, 106 flow [2021-03-25 14:55:58,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:55:58,420 INFO L241 Difference]: Finished difference. Result has 36 places, 25 transitions, 95 flow [2021-03-25 14:55:58,420 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2021-03-25 14:55:58,421 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -10 predicate places. [2021-03-25 14:55:58,421 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:58,421 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 25 transitions, 95 flow [2021-03-25 14:55:58,421 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 25 transitions, 95 flow [2021-03-25 14:55:58,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 25 transitions, 95 flow [2021-03-25 14:55:58,429 INFO L129 PetriNetUnfolder]: 4/51 cut-off events. [2021-03-25 14:55:58,430 INFO L130 PetriNetUnfolder]: For 53/63 co-relation queries the response was YES. [2021-03-25 14:55:58,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 51 events. 4/51 cut-off events. For 53/63 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 170 event pairs, 1 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 100. Up to 15 conditions per place. [2021-03-25 14:55:58,430 INFO L142 LiptonReduction]: Number of co-enabled transitions 258 [2021-03-25 14:55:58,451 INFO L154 LiptonReduction]: Checked pairs total: 218 [2021-03-25 14:55:58,451 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:55:58,451 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-25 14:55:58,452 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 95 flow [2021-03-25 14:55:58,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,452 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:58,453 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:55:58,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 14:55:58,453 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:58,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:58,453 INFO L82 PathProgramCache]: Analyzing trace with hash -271987930, now seen corresponding path program 1 times [2021-03-25 14:55:58,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:58,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395715207] [2021-03-25 14:55:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:58,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:55:58,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:55:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:58,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395715207] [2021-03-25 14:55:58,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:58,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:55:58,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304156743] [2021-03-25 14:55:58,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:55:58,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:58,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:55:58,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:55:58,555 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-25 14:55:58,556 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:58,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-25 14:55:58,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:55:58,593 INFO L129 PetriNetUnfolder]: 7/79 cut-off events. [2021-03-25 14:55:58,594 INFO L130 PetriNetUnfolder]: For 141/177 co-relation queries the response was YES. [2021-03-25 14:55:58,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 79 events. 7/79 cut-off events. For 141/177 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 354 event pairs, 2 based on Foata normal form. 9/86 useless extension candidates. Maximal degree in co-relation 163. Up to 19 conditions per place. [2021-03-25 14:55:58,594 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 4 selfloop transitions, 4 changer transitions 2/28 dead transitions. [2021-03-25 14:55:58,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 28 transitions, 132 flow [2021-03-25 14:55:58,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:55:58,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:55:58,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 587 transitions. [2021-03-25 14:55:58,597 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8531976744186046 [2021-03-25 14:55:58,597 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 587 transitions. [2021-03-25 14:55:58,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 587 transitions. [2021-03-25 14:55:58,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:55:58,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 587 transitions. [2021-03-25 14:55:58,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,603 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,603 INFO L185 Difference]: Start difference. First operand has 36 places, 25 transitions, 95 flow. Second operand 4 states and 587 transitions. [2021-03-25 14:55:58,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 28 transitions, 132 flow [2021-03-25 14:55:58,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 28 transitions, 123 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 14:55:58,606 INFO L241 Difference]: Finished difference. Result has 39 places, 25 transitions, 103 flow [2021-03-25 14:55:58,606 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=103, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2021-03-25 14:55:58,606 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2021-03-25 14:55:58,606 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:58,606 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 25 transitions, 103 flow [2021-03-25 14:55:58,607 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 25 transitions, 103 flow [2021-03-25 14:55:58,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 25 transitions, 103 flow [2021-03-25 14:55:58,614 INFO L129 PetriNetUnfolder]: 4/51 cut-off events. [2021-03-25 14:55:58,615 INFO L130 PetriNetUnfolder]: For 64/68 co-relation queries the response was YES. [2021-03-25 14:55:58,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 51 events. 4/51 cut-off events. For 64/68 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 163 event pairs, 2 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 106. Up to 14 conditions per place. [2021-03-25 14:55:58,615 INFO L142 LiptonReduction]: Number of co-enabled transitions 238 [2021-03-25 14:55:58,617 INFO L154 LiptonReduction]: Checked pairs total: 197 [2021-03-25 14:55:58,617 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:55:58,617 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 14:55:58,621 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 103 flow [2021-03-25 14:55:58,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,621 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:58,622 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:55:58,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 14:55:58,622 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:58,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:58,622 INFO L82 PathProgramCache]: Analyzing trace with hash -798394900, now seen corresponding path program 2 times [2021-03-25 14:55:58,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:58,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691618453] [2021-03-25 14:55:58,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:58,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:55:58,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:55:58,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:55:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:58,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691618453] [2021-03-25 14:55:58,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:58,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:55:58,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431278304] [2021-03-25 14:55:58,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:55:58,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:58,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:55:58,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:55:58,738 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 172 [2021-03-25 14:55:58,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,738 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:58,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 172 [2021-03-25 14:55:58,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:55:58,821 INFO L129 PetriNetUnfolder]: 113/253 cut-off events. [2021-03-25 14:55:58,821 INFO L130 PetriNetUnfolder]: For 351/371 co-relation queries the response was YES. [2021-03-25 14:55:58,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 253 events. 113/253 cut-off events. For 351/371 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1167 event pairs, 29 based on Foata normal form. 3/246 useless extension candidates. Maximal degree in co-relation 615. Up to 192 conditions per place. [2021-03-25 14:55:58,823 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 11 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2021-03-25 14:55:58,823 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 33 transitions, 161 flow [2021-03-25 14:55:58,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:55:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:55:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 529 transitions. [2021-03-25 14:55:58,826 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7688953488372093 [2021-03-25 14:55:58,826 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 529 transitions. [2021-03-25 14:55:58,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 529 transitions. [2021-03-25 14:55:58,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:55:58,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 529 transitions. [2021-03-25 14:55:58,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,830 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,830 INFO L185 Difference]: Start difference. First operand has 39 places, 25 transitions, 103 flow. Second operand 4 states and 529 transitions. [2021-03-25 14:55:58,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 33 transitions, 161 flow [2021-03-25 14:55:58,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 151 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-25 14:55:58,839 INFO L241 Difference]: Finished difference. Result has 41 places, 31 transitions, 145 flow [2021-03-25 14:55:58,839 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=145, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2021-03-25 14:55:58,839 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -5 predicate places. [2021-03-25 14:55:58,839 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:58,839 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 31 transitions, 145 flow [2021-03-25 14:55:58,839 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 31 transitions, 145 flow [2021-03-25 14:55:58,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 31 transitions, 145 flow [2021-03-25 14:55:58,853 INFO L129 PetriNetUnfolder]: 21/107 cut-off events. [2021-03-25 14:55:58,854 INFO L130 PetriNetUnfolder]: For 134/152 co-relation queries the response was YES. [2021-03-25 14:55:58,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 107 events. 21/107 cut-off events. For 134/152 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 525 event pairs, 10 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 255. Up to 42 conditions per place. [2021-03-25 14:55:58,855 INFO L142 LiptonReduction]: Number of co-enabled transitions 298 [2021-03-25 14:55:58,889 INFO L154 LiptonReduction]: Checked pairs total: 140 [2021-03-25 14:55:58,889 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:55:58,889 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 14:55:58,890 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 145 flow [2021-03-25 14:55:58,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:58,890 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:55:58,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 14:55:58,890 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:58,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:58,891 INFO L82 PathProgramCache]: Analyzing trace with hash 700346476, now seen corresponding path program 1 times [2021-03-25 14:55:58,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:58,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641496381] [2021-03-25 14:55:58,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:58,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:55:58,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:55:58,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:58,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 14:55:58,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:58,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641496381] [2021-03-25 14:55:58,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:58,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:55:58,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935775119] [2021-03-25 14:55:58,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:55:58,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:58,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:55:58,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:55:58,981 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 172 [2021-03-25 14:55:58,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 145 flow. Second operand has 5 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:58,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:58,982 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 172 [2021-03-25 14:55:58,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:55:59,079 INFO L129 PetriNetUnfolder]: 110/251 cut-off events. [2021-03-25 14:55:59,079 INFO L130 PetriNetUnfolder]: For 385/427 co-relation queries the response was YES. [2021-03-25 14:55:59,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 251 events. 110/251 cut-off events. For 385/427 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1181 event pairs, 49 based on Foata normal form. 12/252 useless extension candidates. Maximal degree in co-relation 705. Up to 167 conditions per place. [2021-03-25 14:55:59,083 INFO L132 encePairwiseOnDemand]: 165/172 looper letters, 13 selfloop transitions, 10 changer transitions 0/38 dead transitions. [2021-03-25 14:55:59,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 38 transitions, 211 flow [2021-03-25 14:55:59,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:55:59,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:55:59,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 538 transitions. [2021-03-25 14:55:59,085 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7819767441860465 [2021-03-25 14:55:59,085 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 538 transitions. [2021-03-25 14:55:59,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 538 transitions. [2021-03-25 14:55:59,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:55:59,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 538 transitions. [2021-03-25 14:55:59,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,088 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,089 INFO L185 Difference]: Start difference. First operand has 41 places, 31 transitions, 145 flow. Second operand 4 states and 538 transitions. [2021-03-25 14:55:59,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 38 transitions, 211 flow [2021-03-25 14:55:59,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 209 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-25 14:55:59,091 INFO L241 Difference]: Finished difference. Result has 46 places, 35 transitions, 200 flow [2021-03-25 14:55:59,091 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2021-03-25 14:55:59,092 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2021-03-25 14:55:59,092 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:59,092 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 35 transitions, 200 flow [2021-03-25 14:55:59,092 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 35 transitions, 200 flow [2021-03-25 14:55:59,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 35 transitions, 200 flow [2021-03-25 14:55:59,118 INFO L129 PetriNetUnfolder]: 71/196 cut-off events. [2021-03-25 14:55:59,118 INFO L130 PetriNetUnfolder]: For 511/549 co-relation queries the response was YES. [2021-03-25 14:55:59,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 196 events. 71/196 cut-off events. For 511/549 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1032 event pairs, 26 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 591. Up to 98 conditions per place. [2021-03-25 14:55:59,121 INFO L142 LiptonReduction]: Number of co-enabled transitions 302 [2021-03-25 14:55:59,125 INFO L154 LiptonReduction]: Checked pairs total: 99 [2021-03-25 14:55:59,125 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:55:59,125 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-25 14:55:59,128 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 200 flow [2021-03-25 14:55:59,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,128 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:59,128 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:55:59,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 14:55:59,128 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:59,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:59,129 INFO L82 PathProgramCache]: Analyzing trace with hash 2016984188, now seen corresponding path program 1 times [2021-03-25 14:55:59,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:59,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364235920] [2021-03-25 14:55:59,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:59,231 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 14:55:59,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 14:55:59,262 INFO L142 QuantifierPusher]: treesize reduction 11, result has 88.3 percent of original size [2021-03-25 14:55:59,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-25 14:55:59,303 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 14:55:59,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 14:55:59,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:59,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 14:55:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:59,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364235920] [2021-03-25 14:55:59,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:59,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:55:59,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096873615] [2021-03-25 14:55:59,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:55:59,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:59,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:55:59,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:55:59,326 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 172 [2021-03-25 14:55:59,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 200 flow. Second operand has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:59,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 172 [2021-03-25 14:55:59,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:55:59,426 INFO L129 PetriNetUnfolder]: 132/295 cut-off events. [2021-03-25 14:55:59,426 INFO L130 PetriNetUnfolder]: For 690/747 co-relation queries the response was YES. [2021-03-25 14:55:59,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 295 events. 132/295 cut-off events. For 690/747 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1451 event pairs, 19 based on Foata normal form. 18/304 useless extension candidates. Maximal degree in co-relation 1009. Up to 205 conditions per place. [2021-03-25 14:55:59,428 INFO L132 encePairwiseOnDemand]: 164/172 looper letters, 22 selfloop transitions, 12 changer transitions 0/49 dead transitions. [2021-03-25 14:55:59,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 49 transitions, 346 flow [2021-03-25 14:55:59,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:55:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:55:59,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 632 transitions. [2021-03-25 14:55:59,431 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7348837209302326 [2021-03-25 14:55:59,431 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 632 transitions. [2021-03-25 14:55:59,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 632 transitions. [2021-03-25 14:55:59,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:55:59,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 632 transitions. [2021-03-25 14:55:59,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.4) internal successors, (632), 5 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,435 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,435 INFO L185 Difference]: Start difference. First operand has 46 places, 35 transitions, 200 flow. Second operand 5 states and 632 transitions. [2021-03-25 14:55:59,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 49 transitions, 346 flow [2021-03-25 14:55:59,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 49 transitions, 336 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 14:55:59,439 INFO L241 Difference]: Finished difference. Result has 52 places, 46 transitions, 318 flow [2021-03-25 14:55:59,439 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=318, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2021-03-25 14:55:59,439 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 6 predicate places. [2021-03-25 14:55:59,439 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:59,439 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 46 transitions, 318 flow [2021-03-25 14:55:59,440 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 46 transitions, 318 flow [2021-03-25 14:55:59,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 46 transitions, 318 flow [2021-03-25 14:55:59,473 INFO L129 PetriNetUnfolder]: 95/249 cut-off events. [2021-03-25 14:55:59,474 INFO L130 PetriNetUnfolder]: For 1173/1252 co-relation queries the response was YES. [2021-03-25 14:55:59,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 249 events. 95/249 cut-off events. For 1173/1252 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1351 event pairs, 14 based on Foata normal form. 4/233 useless extension candidates. Maximal degree in co-relation 931. Up to 113 conditions per place. [2021-03-25 14:55:59,477 INFO L142 LiptonReduction]: Number of co-enabled transitions 366 [2021-03-25 14:55:59,489 INFO L154 LiptonReduction]: Checked pairs total: 259 [2021-03-25 14:55:59,490 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:55:59,490 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-25 14:55:59,490 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 318 flow [2021-03-25 14:55:59,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:59,491 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:55:59,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 14:55:59,491 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:59,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:59,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1749788982, now seen corresponding path program 2 times [2021-03-25 14:55:59,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:59,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935605746] [2021-03-25 14:55:59,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:59,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:59,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 14:55:59,569 INFO L142 QuantifierPusher]: treesize reduction 8, result has 70.4 percent of original size [2021-03-25 14:55:59,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 14:55:59,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:59,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:55:59,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:59,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:55:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:59,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935605746] [2021-03-25 14:55:59,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:59,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:55:59,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571484392] [2021-03-25 14:55:59,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:55:59,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:59,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:55:59,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:55:59,597 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 172 [2021-03-25 14:55:59,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 318 flow. Second operand has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:59,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 172 [2021-03-25 14:55:59,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:55:59,722 INFO L129 PetriNetUnfolder]: 133/292 cut-off events. [2021-03-25 14:55:59,722 INFO L130 PetriNetUnfolder]: For 1073/1198 co-relation queries the response was YES. [2021-03-25 14:55:59,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1268 conditions, 292 events. 133/292 cut-off events. For 1073/1198 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1390 event pairs, 33 based on Foata normal form. 33/318 useless extension candidates. Maximal degree in co-relation 1243. Up to 217 conditions per place. [2021-03-25 14:55:59,725 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 21 selfloop transitions, 13 changer transitions 1/50 dead transitions. [2021-03-25 14:55:59,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 50 transitions, 414 flow [2021-03-25 14:55:59,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:55:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:55:59,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 537 transitions. [2021-03-25 14:55:59,727 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7805232558139535 [2021-03-25 14:55:59,727 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 537 transitions. [2021-03-25 14:55:59,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 537 transitions. [2021-03-25 14:55:59,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:55:59,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 537 transitions. [2021-03-25 14:55:59,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,731 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,731 INFO L185 Difference]: Start difference. First operand has 52 places, 46 transitions, 318 flow. Second operand 4 states and 537 transitions. [2021-03-25 14:55:59,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 50 transitions, 414 flow [2021-03-25 14:55:59,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 406 flow, removed 4 selfloop flow, removed 0 redundant places. [2021-03-25 14:55:59,737 INFO L241 Difference]: Finished difference. Result has 56 places, 47 transitions, 359 flow [2021-03-25 14:55:59,737 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=359, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2021-03-25 14:55:59,737 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 10 predicate places. [2021-03-25 14:55:59,738 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:55:59,738 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 47 transitions, 359 flow [2021-03-25 14:55:59,738 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 47 transitions, 359 flow [2021-03-25 14:55:59,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 47 transitions, 359 flow [2021-03-25 14:55:59,771 INFO L129 PetriNetUnfolder]: 86/240 cut-off events. [2021-03-25 14:55:59,771 INFO L130 PetriNetUnfolder]: For 1301/1389 co-relation queries the response was YES. [2021-03-25 14:55:59,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 240 events. 86/240 cut-off events. For 1301/1389 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1323 event pairs, 16 based on Foata normal form. 7/233 useless extension candidates. Maximal degree in co-relation 947. Up to 103 conditions per place. [2021-03-25 14:55:59,775 INFO L142 LiptonReduction]: Number of co-enabled transitions 372 [2021-03-25 14:55:59,787 INFO L154 LiptonReduction]: Checked pairs total: 254 [2021-03-25 14:55:59,787 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:55:59,787 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-25 14:55:59,788 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 359 flow [2021-03-25 14:55:59,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,788 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:55:59,788 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:55:59,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 14:55:59,788 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:55:59,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:55:59,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1005753936, now seen corresponding path program 3 times [2021-03-25 14:55:59,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:55:59,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966656481] [2021-03-25 14:55:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:55:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:55:59,845 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 14:55:59,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 14:55:59,876 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 14:55:59,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 14:55:59,904 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 14:55:59,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 14:55:59,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:55:59,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:55:59,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:55:59,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966656481] [2021-03-25 14:55:59,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:55:59,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:55:59,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512976217] [2021-03-25 14:55:59,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:55:59,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:55:59,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:55:59,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:55:59,945 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 172 [2021-03-25 14:55:59,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 359 flow. Second operand has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:55:59,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:55:59,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 172 [2021-03-25 14:55:59,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:00,047 INFO L129 PetriNetUnfolder]: 127/288 cut-off events. [2021-03-25 14:56:00,047 INFO L130 PetriNetUnfolder]: For 1252/1411 co-relation queries the response was YES. [2021-03-25 14:56:00,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 288 events. 127/288 cut-off events. For 1252/1411 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1426 event pairs, 17 based on Foata normal form. 35/316 useless extension candidates. Maximal degree in co-relation 1277. Up to 200 conditions per place. [2021-03-25 14:56:00,050 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 20 selfloop transitions, 16 changer transitions 0/51 dead transitions. [2021-03-25 14:56:00,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 51 transitions, 461 flow [2021-03-25 14:56:00,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:56:00,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:56:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 529 transitions. [2021-03-25 14:56:00,053 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7688953488372093 [2021-03-25 14:56:00,053 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 529 transitions. [2021-03-25 14:56:00,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 529 transitions. [2021-03-25 14:56:00,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:00,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 529 transitions. [2021-03-25 14:56:00,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,056 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,056 INFO L185 Difference]: Start difference. First operand has 56 places, 47 transitions, 359 flow. Second operand 4 states and 529 transitions. [2021-03-25 14:56:00,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 51 transitions, 461 flow [2021-03-25 14:56:00,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 51 transitions, 442 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 14:56:00,061 INFO L241 Difference]: Finished difference. Result has 58 places, 49 transitions, 408 flow [2021-03-25 14:56:00,061 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=408, PETRI_PLACES=58, PETRI_TRANSITIONS=49} [2021-03-25 14:56:00,061 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 12 predicate places. [2021-03-25 14:56:00,061 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:00,061 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 49 transitions, 408 flow [2021-03-25 14:56:00,062 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 49 transitions, 408 flow [2021-03-25 14:56:00,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 49 transitions, 408 flow [2021-03-25 14:56:00,093 INFO L129 PetriNetUnfolder]: 89/245 cut-off events. [2021-03-25 14:56:00,094 INFO L130 PetriNetUnfolder]: For 1529/1609 co-relation queries the response was YES. [2021-03-25 14:56:00,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 245 events. 89/245 cut-off events. For 1529/1609 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1377 event pairs, 12 based on Foata normal form. 8/237 useless extension candidates. Maximal degree in co-relation 1013. Up to 104 conditions per place. [2021-03-25 14:56:00,097 INFO L142 LiptonReduction]: Number of co-enabled transitions 376 [2021-03-25 14:56:00,110 INFO L154 LiptonReduction]: Checked pairs total: 174 [2021-03-25 14:56:00,110 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:00,110 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-25 14:56:00,111 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 49 transitions, 408 flow [2021-03-25 14:56:00,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,112 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:00,112 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:00,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 14:56:00,112 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:00,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:00,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1608873968, now seen corresponding path program 1 times [2021-03-25 14:56:00,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:00,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365479877] [2021-03-25 14:56:00,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:00,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:00,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:00,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:56:00,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:00,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:00,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365479877] [2021-03-25 14:56:00,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:00,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:00,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244436704] [2021-03-25 14:56:00,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:56:00,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:00,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:56:00,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:56:00,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 172 [2021-03-25 14:56:00,174 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 49 transitions, 408 flow. Second operand has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:00,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 172 [2021-03-25 14:56:00,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:00,301 INFO L129 PetriNetUnfolder]: 158/349 cut-off events. [2021-03-25 14:56:00,301 INFO L130 PetriNetUnfolder]: For 1897/2084 co-relation queries the response was YES. [2021-03-25 14:56:00,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1682 conditions, 349 events. 158/349 cut-off events. For 1897/2084 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1833 event pairs, 29 based on Foata normal form. 9/350 useless extension candidates. Maximal degree in co-relation 1653. Up to 236 conditions per place. [2021-03-25 14:56:00,305 INFO L132 encePairwiseOnDemand]: 164/172 looper letters, 21 selfloop transitions, 24 changer transitions 1/61 dead transitions. [2021-03-25 14:56:00,305 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 61 transitions, 603 flow [2021-03-25 14:56:00,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:00,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 689 transitions. [2021-03-25 14:56:00,308 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8011627906976744 [2021-03-25 14:56:00,308 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 689 transitions. [2021-03-25 14:56:00,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 689 transitions. [2021-03-25 14:56:00,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:00,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 689 transitions. [2021-03-25 14:56:00,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,312 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,312 INFO L185 Difference]: Start difference. First operand has 58 places, 49 transitions, 408 flow. Second operand 5 states and 689 transitions. [2021-03-25 14:56:00,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 61 transitions, 603 flow [2021-03-25 14:56:00,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 61 transitions, 551 flow, removed 16 selfloop flow, removed 2 redundant places. [2021-03-25 14:56:00,317 INFO L241 Difference]: Finished difference. Result has 62 places, 59 transitions, 539 flow [2021-03-25 14:56:00,317 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=539, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2021-03-25 14:56:00,317 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2021-03-25 14:56:00,317 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:00,318 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 59 transitions, 539 flow [2021-03-25 14:56:00,318 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 59 transitions, 539 flow [2021-03-25 14:56:00,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 59 transitions, 539 flow [2021-03-25 14:56:00,361 INFO L129 PetriNetUnfolder]: 137/317 cut-off events. [2021-03-25 14:56:00,362 INFO L130 PetriNetUnfolder]: For 1884/1974 co-relation queries the response was YES. [2021-03-25 14:56:00,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1493 conditions, 317 events. 137/317 cut-off events. For 1884/1974 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1714 event pairs, 22 based on Foata normal form. 17/326 useless extension candidates. Maximal degree in co-relation 1464. Up to 159 conditions per place. [2021-03-25 14:56:00,367 INFO L142 LiptonReduction]: Number of co-enabled transitions 428 [2021-03-25 14:56:00,399 INFO L154 LiptonReduction]: Checked pairs total: 539 [2021-03-25 14:56:00,399 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:00,399 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-25 14:56:00,401 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 539 flow [2021-03-25 14:56:00,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,401 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:00,401 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:00,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 14:56:00,401 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:00,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:00,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1674548708, now seen corresponding path program 2 times [2021-03-25 14:56:00,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:00,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241367293] [2021-03-25 14:56:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:00,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:00,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:56:00,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 14:56:00,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 14:56:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:00,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241367293] [2021-03-25 14:56:00,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:00,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:56:00,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249014433] [2021-03-25 14:56:00,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:56:00,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:00,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:56:00,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:56:00,472 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2021-03-25 14:56:00,473 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 539 flow. Second operand has 6 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:00,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2021-03-25 14:56:00,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:00,619 INFO L129 PetriNetUnfolder]: 155/346 cut-off events. [2021-03-25 14:56:00,619 INFO L130 PetriNetUnfolder]: For 2151/2335 co-relation queries the response was YES. [2021-03-25 14:56:00,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 346 events. 155/346 cut-off events. For 2151/2335 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1824 event pairs, 12 based on Foata normal form. 49/389 useless extension candidates. Maximal degree in co-relation 1811. Up to 212 conditions per place. [2021-03-25 14:56:00,623 INFO L132 encePairwiseOnDemand]: 165/172 looper letters, 29 selfloop transitions, 30 changer transitions 3/77 dead transitions. [2021-03-25 14:56:00,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 77 transitions, 821 flow [2021-03-25 14:56:00,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:00,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:00,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 652 transitions. [2021-03-25 14:56:00,626 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7581395348837209 [2021-03-25 14:56:00,626 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 652 transitions. [2021-03-25 14:56:00,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 652 transitions. [2021-03-25 14:56:00,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:00,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 652 transitions. [2021-03-25 14:56:00,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,629 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,629 INFO L185 Difference]: Start difference. First operand has 62 places, 59 transitions, 539 flow. Second operand 5 states and 652 transitions. [2021-03-25 14:56:00,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 77 transitions, 821 flow [2021-03-25 14:56:00,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 77 transitions, 794 flow, removed 13 selfloop flow, removed 1 redundant places. [2021-03-25 14:56:00,639 INFO L241 Difference]: Finished difference. Result has 66 places, 71 transitions, 725 flow [2021-03-25 14:56:00,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=725, PETRI_PLACES=66, PETRI_TRANSITIONS=71} [2021-03-25 14:56:00,639 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2021-03-25 14:56:00,639 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:00,640 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 71 transitions, 725 flow [2021-03-25 14:56:00,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 71 transitions, 725 flow [2021-03-25 14:56:00,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 71 transitions, 725 flow [2021-03-25 14:56:00,738 INFO L129 PetriNetUnfolder]: 134/327 cut-off events. [2021-03-25 14:56:00,739 INFO L130 PetriNetUnfolder]: For 2103/2238 co-relation queries the response was YES. [2021-03-25 14:56:00,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1664 conditions, 327 events. 134/327 cut-off events. For 2103/2238 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1884 event pairs, 17 based on Foata normal form. 19/337 useless extension candidates. Maximal degree in co-relation 1633. Up to 156 conditions per place. [2021-03-25 14:56:00,744 INFO L142 LiptonReduction]: Number of co-enabled transitions 468 [2021-03-25 14:56:00,766 INFO L154 LiptonReduction]: Checked pairs total: 843 [2021-03-25 14:56:00,766 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:00,766 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 127 [2021-03-25 14:56:00,766 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 71 transitions, 725 flow [2021-03-25 14:56:00,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,767 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:00,767 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:00,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 14:56:00,767 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:00,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:00,768 INFO L82 PathProgramCache]: Analyzing trace with hash 957404347, now seen corresponding path program 1 times [2021-03-25 14:56:00,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:00,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335192198] [2021-03-25 14:56:00,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:00,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:00,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:00,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:00,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:00,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335192198] [2021-03-25 14:56:00,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:00,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:00,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193098466] [2021-03-25 14:56:00,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:00,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:00,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:00,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:00,808 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-25 14:56:00,808 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 71 transitions, 725 flow. Second operand has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,809 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:00,809 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-25 14:56:00,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:00,908 INFO L129 PetriNetUnfolder]: 228/515 cut-off events. [2021-03-25 14:56:00,909 INFO L130 PetriNetUnfolder]: For 3944/4227 co-relation queries the response was YES. [2021-03-25 14:56:00,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2649 conditions, 515 events. 228/515 cut-off events. For 3944/4227 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 3149 event pairs, 43 based on Foata normal form. 67/563 useless extension candidates. Maximal degree in co-relation 2616. Up to 252 conditions per place. [2021-03-25 14:56:00,914 INFO L132 encePairwiseOnDemand]: 168/172 looper letters, 5 selfloop transitions, 3 changer transitions 2/73 dead transitions. [2021-03-25 14:56:00,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 73 transitions, 753 flow [2021-03-25 14:56:00,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:00,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 729 transitions. [2021-03-25 14:56:00,916 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8476744186046512 [2021-03-25 14:56:00,916 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 729 transitions. [2021-03-25 14:56:00,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 729 transitions. [2021-03-25 14:56:00,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:00,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 729 transitions. [2021-03-25 14:56:00,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,920 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:00,920 INFO L185 Difference]: Start difference. First operand has 66 places, 71 transitions, 725 flow. Second operand 5 states and 729 transitions. [2021-03-25 14:56:00,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 73 transitions, 753 flow [2021-03-25 14:56:00,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 73 transitions, 736 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-03-25 14:56:00,930 INFO L241 Difference]: Finished difference. Result has 71 places, 71 transitions, 723 flow [2021-03-25 14:56:00,930 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=723, PETRI_PLACES=71, PETRI_TRANSITIONS=71} [2021-03-25 14:56:00,930 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2021-03-25 14:56:00,930 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:00,931 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 71 transitions, 723 flow [2021-03-25 14:56:00,931 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 71 transitions, 723 flow [2021-03-25 14:56:00,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 71 transitions, 723 flow [2021-03-25 14:56:00,978 INFO L129 PetriNetUnfolder]: 137/339 cut-off events. [2021-03-25 14:56:00,978 INFO L130 PetriNetUnfolder]: For 2108/2247 co-relation queries the response was YES. [2021-03-25 14:56:00,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1699 conditions, 339 events. 137/339 cut-off events. For 2108/2247 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 1944 event pairs, 17 based on Foata normal form. 31/356 useless extension candidates. Maximal degree in co-relation 1666. Up to 160 conditions per place. [2021-03-25 14:56:00,984 INFO L142 LiptonReduction]: Number of co-enabled transitions 436 [2021-03-25 14:56:01,101 INFO L154 LiptonReduction]: Checked pairs total: 1303 [2021-03-25 14:56:01,101 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 14:56:01,102 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-03-25 14:56:01,102 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 71 transitions, 735 flow [2021-03-25 14:56:01,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,102 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:01,102 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:01,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 14:56:01,103 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:01,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:01,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1083522667, now seen corresponding path program 1 times [2021-03-25 14:56:01,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:01,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655116193] [2021-03-25 14:56:01,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:01,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:01,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:01,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:01,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:01,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:01,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:01,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655116193] [2021-03-25 14:56:01,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:01,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:01,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151124076] [2021-03-25 14:56:01,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:56:01,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:01,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:56:01,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:56:01,149 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 175 [2021-03-25 14:56:01,150 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 71 transitions, 735 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,150 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:01,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 175 [2021-03-25 14:56:01,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:01,266 INFO L129 PetriNetUnfolder]: 286/637 cut-off events. [2021-03-25 14:56:01,267 INFO L130 PetriNetUnfolder]: For 3072/3331 co-relation queries the response was YES. [2021-03-25 14:56:01,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2402 conditions, 637 events. 286/637 cut-off events. For 3072/3331 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 4169 event pairs, 71 based on Foata normal form. 162/701 useless extension candidates. Maximal degree in co-relation 2367. Up to 359 conditions per place. [2021-03-25 14:56:01,274 INFO L132 encePairwiseOnDemand]: 169/175 looper letters, 12 selfloop transitions, 8 changer transitions 1/68 dead transitions. [2021-03-25 14:56:01,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 630 flow [2021-03-25 14:56:01,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:01,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 725 transitions. [2021-03-25 14:56:01,277 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2021-03-25 14:56:01,277 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 725 transitions. [2021-03-25 14:56:01,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 725 transitions. [2021-03-25 14:56:01,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:01,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 725 transitions. [2021-03-25 14:56:01,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,281 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,281 INFO L185 Difference]: Start difference. First operand has 69 places, 71 transitions, 735 flow. Second operand 5 states and 725 transitions. [2021-03-25 14:56:01,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 630 flow [2021-03-25 14:56:01,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 68 transitions, 601 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 14:56:01,289 INFO L241 Difference]: Finished difference. Result has 70 places, 63 transitions, 599 flow [2021-03-25 14:56:01,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=599, PETRI_PLACES=70, PETRI_TRANSITIONS=63} [2021-03-25 14:56:01,289 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2021-03-25 14:56:01,289 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:01,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 63 transitions, 599 flow [2021-03-25 14:56:01,290 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 63 transitions, 599 flow [2021-03-25 14:56:01,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 63 transitions, 599 flow [2021-03-25 14:56:01,355 INFO L129 PetriNetUnfolder]: 223/534 cut-off events. [2021-03-25 14:56:01,355 INFO L130 PetriNetUnfolder]: For 2569/2732 co-relation queries the response was YES. [2021-03-25 14:56:01,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 534 events. 223/534 cut-off events. For 2569/2732 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 3565 event pairs, 61 based on Foata normal form. 50/553 useless extension candidates. Maximal degree in co-relation 2364. Up to 246 conditions per place. [2021-03-25 14:56:01,364 INFO L142 LiptonReduction]: Number of co-enabled transitions 520 [2021-03-25 14:56:01,371 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:01,371 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:01,371 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-25 14:56:01,374 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 63 transitions, 599 flow [2021-03-25 14:56:01,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,374 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:01,374 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:01,374 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 14:56:01,374 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:01,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:01,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1831756793, now seen corresponding path program 1 times [2021-03-25 14:56:01,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:01,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691063039] [2021-03-25 14:56:01,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:01,437 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 14:56:01,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 14:56:01,458 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 14:56:01,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 14:56:01,490 INFO L142 QuantifierPusher]: treesize reduction 11, result has 87.4 percent of original size [2021-03-25 14:56:01,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-25 14:56:01,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:01,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:56:01,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:01,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:01,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691063039] [2021-03-25 14:56:01,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:01,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 14:56:01,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008893343] [2021-03-25 14:56:01,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 14:56:01,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:01,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 14:56:01,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 14:56:01,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 175 [2021-03-25 14:56:01,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 63 transitions, 599 flow. Second operand has 7 states, 7 states have (on average 124.85714285714286) internal successors, (874), 7 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:01,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 175 [2021-03-25 14:56:01,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:01,764 INFO L129 PetriNetUnfolder]: 242/564 cut-off events. [2021-03-25 14:56:01,765 INFO L130 PetriNetUnfolder]: For 3482/3754 co-relation queries the response was YES. [2021-03-25 14:56:01,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2833 conditions, 564 events. 242/564 cut-off events. For 3482/3754 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 3660 event pairs, 64 based on Foata normal form. 63/596 useless extension candidates. Maximal degree in co-relation 2797. Up to 263 conditions per place. [2021-03-25 14:56:01,773 INFO L132 encePairwiseOnDemand]: 166/175 looper letters, 31 selfloop transitions, 14 changer transitions 0/67 dead transitions. [2021-03-25 14:56:01,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 67 transitions, 733 flow [2021-03-25 14:56:01,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 641 transitions. [2021-03-25 14:56:01,776 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7325714285714285 [2021-03-25 14:56:01,776 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 641 transitions. [2021-03-25 14:56:01,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 641 transitions. [2021-03-25 14:56:01,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:01,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 641 transitions. [2021-03-25 14:56:01,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,780 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,780 INFO L185 Difference]: Start difference. First operand has 70 places, 63 transitions, 599 flow. Second operand 5 states and 641 transitions. [2021-03-25 14:56:01,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 67 transitions, 733 flow [2021-03-25 14:56:01,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 67 transitions, 729 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:56:01,788 INFO L241 Difference]: Finished difference. Result has 74 places, 65 transitions, 653 flow [2021-03-25 14:56:01,788 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=653, PETRI_PLACES=74, PETRI_TRANSITIONS=65} [2021-03-25 14:56:01,788 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 28 predicate places. [2021-03-25 14:56:01,788 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:01,788 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 65 transitions, 653 flow [2021-03-25 14:56:01,788 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 65 transitions, 653 flow [2021-03-25 14:56:01,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 65 transitions, 653 flow [2021-03-25 14:56:01,853 INFO L129 PetriNetUnfolder]: 222/538 cut-off events. [2021-03-25 14:56:01,853 INFO L130 PetriNetUnfolder]: For 2978/3140 co-relation queries the response was YES. [2021-03-25 14:56:01,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2478 conditions, 538 events. 222/538 cut-off events. For 2978/3140 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 3597 event pairs, 58 based on Foata normal form. 57/565 useless extension candidates. Maximal degree in co-relation 2442. Up to 247 conditions per place. [2021-03-25 14:56:01,863 INFO L142 LiptonReduction]: Number of co-enabled transitions 540 [2021-03-25 14:56:01,870 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:01,870 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:01,870 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-25 14:56:01,871 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 653 flow [2021-03-25 14:56:01,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 124.85714285714286) internal successors, (874), 7 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,871 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:01,871 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:01,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 14:56:01,872 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:01,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:01,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1838161858, now seen corresponding path program 1 times [2021-03-25 14:56:01,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:01,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151326762] [2021-03-25 14:56:01,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:01,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:01,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:01,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:01,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:56:01,946 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-03-25 14:56:01,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 14:56:01,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:01,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:01,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:01,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:01,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:01,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151326762] [2021-03-25 14:56:01,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:01,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:56:01,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523365631] [2021-03-25 14:56:01,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:56:01,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:01,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:56:01,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:56:01,980 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 175 [2021-03-25 14:56:01,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 65 transitions, 653 flow. Second operand has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:01,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:01,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 175 [2021-03-25 14:56:01,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:02,148 INFO L129 PetriNetUnfolder]: 256/588 cut-off events. [2021-03-25 14:56:02,148 INFO L130 PetriNetUnfolder]: For 4072/4351 co-relation queries the response was YES. [2021-03-25 14:56:02,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3020 conditions, 588 events. 256/588 cut-off events. For 4072/4351 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3797 event pairs, 66 based on Foata normal form. 67/626 useless extension candidates. Maximal degree in co-relation 2982. Up to 274 conditions per place. [2021-03-25 14:56:02,155 INFO L132 encePairwiseOnDemand]: 166/175 looper letters, 31 selfloop transitions, 13 changer transitions 3/69 dead transitions. [2021-03-25 14:56:02,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 69 transitions, 793 flow [2021-03-25 14:56:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 646 transitions. [2021-03-25 14:56:02,158 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7382857142857143 [2021-03-25 14:56:02,158 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 646 transitions. [2021-03-25 14:56:02,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 646 transitions. [2021-03-25 14:56:02,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:02,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 646 transitions. [2021-03-25 14:56:02,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,161 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,161 INFO L185 Difference]: Start difference. First operand has 74 places, 65 transitions, 653 flow. Second operand 5 states and 646 transitions. [2021-03-25 14:56:02,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 69 transitions, 793 flow [2021-03-25 14:56:02,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 69 transitions, 763 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 14:56:02,172 INFO L241 Difference]: Finished difference. Result has 76 places, 64 transitions, 650 flow [2021-03-25 14:56:02,172 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=623, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=650, PETRI_PLACES=76, PETRI_TRANSITIONS=64} [2021-03-25 14:56:02,173 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 30 predicate places. [2021-03-25 14:56:02,173 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:02,173 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 64 transitions, 650 flow [2021-03-25 14:56:02,173 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 64 transitions, 650 flow [2021-03-25 14:56:02,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 64 transitions, 650 flow [2021-03-25 14:56:02,242 INFO L129 PetriNetUnfolder]: 230/561 cut-off events. [2021-03-25 14:56:02,242 INFO L130 PetriNetUnfolder]: For 3640/3815 co-relation queries the response was YES. [2021-03-25 14:56:02,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 561 events. 230/561 cut-off events. For 3640/3815 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3843 event pairs, 61 based on Foata normal form. 60/590 useless extension candidates. Maximal degree in co-relation 2598. Up to 261 conditions per place. [2021-03-25 14:56:02,251 INFO L142 LiptonReduction]: Number of co-enabled transitions 530 [2021-03-25 14:56:02,257 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:02,257 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:02,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-25 14:56:02,258 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 64 transitions, 650 flow [2021-03-25 14:56:02,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,258 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:02,258 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:02,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 14:56:02,259 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:02,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:02,259 INFO L82 PathProgramCache]: Analyzing trace with hash -939202278, now seen corresponding path program 1 times [2021-03-25 14:56:02,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:02,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235405348] [2021-03-25 14:56:02,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:02,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:02,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:02,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:02,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 14:56:02,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:02,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:02,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:02,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:02,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235405348] [2021-03-25 14:56:02,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:02,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:56:02,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621834625] [2021-03-25 14:56:02,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:56:02,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:02,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:56:02,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:56:02,326 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 175 [2021-03-25 14:56:02,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 64 transitions, 650 flow. Second operand has 5 states, 5 states have (on average 135.2) internal successors, (676), 5 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:02,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 175 [2021-03-25 14:56:02,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:02,444 INFO L129 PetriNetUnfolder]: 241/587 cut-off events. [2021-03-25 14:56:02,444 INFO L130 PetriNetUnfolder]: For 4331/4571 co-relation queries the response was YES. [2021-03-25 14:56:02,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 587 events. 241/587 cut-off events. For 4331/4571 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 3972 event pairs, 76 based on Foata normal form. 60/606 useless extension candidates. Maximal degree in co-relation 3033. Up to 269 conditions per place. [2021-03-25 14:56:02,450 INFO L132 encePairwiseOnDemand]: 167/175 looper letters, 20 selfloop transitions, 24 changer transitions 1/67 dead transitions. [2021-03-25 14:56:02,450 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 67 transitions, 772 flow [2021-03-25 14:56:02,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:56:02,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:56:02,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 552 transitions. [2021-03-25 14:56:02,453 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7885714285714286 [2021-03-25 14:56:02,453 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 552 transitions. [2021-03-25 14:56:02,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 552 transitions. [2021-03-25 14:56:02,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:02,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 552 transitions. [2021-03-25 14:56:02,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 175.0) internal successors, (875), 5 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,456 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 175.0) internal successors, (875), 5 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,456 INFO L185 Difference]: Start difference. First operand has 76 places, 64 transitions, 650 flow. Second operand 4 states and 552 transitions. [2021-03-25 14:56:02,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 67 transitions, 772 flow [2021-03-25 14:56:02,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 67 transitions, 747 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-25 14:56:02,467 INFO L241 Difference]: Finished difference. Result has 77 places, 66 transitions, 724 flow [2021-03-25 14:56:02,467 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=724, PETRI_PLACES=77, PETRI_TRANSITIONS=66} [2021-03-25 14:56:02,467 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 31 predicate places. [2021-03-25 14:56:02,467 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:02,467 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 66 transitions, 724 flow [2021-03-25 14:56:02,468 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 66 transitions, 724 flow [2021-03-25 14:56:02,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 66 transitions, 724 flow [2021-03-25 14:56:02,537 INFO L129 PetriNetUnfolder]: 231/572 cut-off events. [2021-03-25 14:56:02,537 INFO L130 PetriNetUnfolder]: For 4232/4384 co-relation queries the response was YES. [2021-03-25 14:56:02,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2887 conditions, 572 events. 231/572 cut-off events. For 4232/4384 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 3900 event pairs, 69 based on Foata normal form. 63/606 useless extension candidates. Maximal degree in co-relation 2849. Up to 266 conditions per place. [2021-03-25 14:56:02,546 INFO L142 LiptonReduction]: Number of co-enabled transitions 532 [2021-03-25 14:56:02,562 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:02,562 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:02,562 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-03-25 14:56:02,564 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 66 transitions, 724 flow [2021-03-25 14:56:02,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 135.2) internal successors, (676), 5 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:02,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:02,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 14:56:02,564 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:02,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:02,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1559383576, now seen corresponding path program 1 times [2021-03-25 14:56:02,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:02,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045045384] [2021-03-25 14:56:02,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:02,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:02,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:02,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:02,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:02,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:02,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:02,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:02,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:02,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:02,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045045384] [2021-03-25 14:56:02,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:02,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:56:02,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27134654] [2021-03-25 14:56:02,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:56:02,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:02,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:56:02,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:56:02,676 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 175 [2021-03-25 14:56:02,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 724 flow. Second operand has 5 states, 5 states have (on average 141.8) internal successors, (709), 5 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:02,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 175 [2021-03-25 14:56:02,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:02,799 INFO L129 PetriNetUnfolder]: 176/481 cut-off events. [2021-03-25 14:56:02,799 INFO L130 PetriNetUnfolder]: For 3712/4638 co-relation queries the response was YES. [2021-03-25 14:56:02,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2173 conditions, 481 events. 176/481 cut-off events. For 3712/4638 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 3319 event pairs, 10 based on Foata normal form. 323/752 useless extension candidates. Maximal degree in co-relation 2133. Up to 263 conditions per place. [2021-03-25 14:56:02,805 INFO L132 encePairwiseOnDemand]: 169/175 looper letters, 9 selfloop transitions, 15 changer transitions 3/72 dead transitions. [2021-03-25 14:56:02,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 72 transitions, 765 flow [2021-03-25 14:56:02,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 14:56:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 14:56:02,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1015 transitions. [2021-03-25 14:56:02,808 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8285714285714286 [2021-03-25 14:56:02,808 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1015 transitions. [2021-03-25 14:56:02,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1015 transitions. [2021-03-25 14:56:02,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:02,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1015 transitions. [2021-03-25 14:56:02,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,827 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:02,827 INFO L185 Difference]: Start difference. First operand has 77 places, 66 transitions, 724 flow. Second operand 7 states and 1015 transitions. [2021-03-25 14:56:02,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 72 transitions, 765 flow [2021-03-25 14:56:02,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 72 transitions, 721 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-25 14:56:02,836 INFO L241 Difference]: Finished difference. Result has 82 places, 67 transitions, 708 flow [2021-03-25 14:56:02,836 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=708, PETRI_PLACES=82, PETRI_TRANSITIONS=67} [2021-03-25 14:56:02,836 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 36 predicate places. [2021-03-25 14:56:02,836 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:02,837 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 67 transitions, 708 flow [2021-03-25 14:56:02,839 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 67 transitions, 708 flow [2021-03-25 14:56:02,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 67 transitions, 708 flow [2021-03-25 14:56:02,888 INFO L129 PetriNetUnfolder]: 103/359 cut-off events. [2021-03-25 14:56:02,889 INFO L130 PetriNetUnfolder]: For 2680/2883 co-relation queries the response was YES. [2021-03-25 14:56:02,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 359 events. 103/359 cut-off events. For 2680/2883 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2490 event pairs, 7 based on Foata normal form. 38/384 useless extension candidates. Maximal degree in co-relation 1873. Up to 186 conditions per place. [2021-03-25 14:56:02,896 INFO L142 LiptonReduction]: Number of co-enabled transitions 570 [2021-03-25 14:56:03,603 WARN L205 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 180 [2021-03-25 14:56:03,832 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-25 14:56:05,147 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 334 DAG size of output: 256 [2021-03-25 14:56:05,602 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-03-25 14:56:05,613 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 14:56:05,613 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:56:05,613 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2777 [2021-03-25 14:56:05,615 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 67 transitions, 730 flow [2021-03-25 14:56:05,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 141.8) internal successors, (709), 5 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:05,615 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:05,615 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:05,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 14:56:05,615 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:05,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:05,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1487753501, now seen corresponding path program 1 times [2021-03-25 14:56:05,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:05,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210653347] [2021-03-25 14:56:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:05,682 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 14:56:05,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 14:56:05,710 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-25 14:56:05,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 14:56:05,748 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 14:56:05,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 14:56:05,780 INFO L142 QuantifierPusher]: treesize reduction 27, result has 71.0 percent of original size [2021-03-25 14:56:05,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-03-25 14:56:05,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:05,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:05,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:05,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:05,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:05,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210653347] [2021-03-25 14:56:05,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:05,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 14:56:05,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007459263] [2021-03-25 14:56:05,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 14:56:05,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:05,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 14:56:05,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 14:56:05,833 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 176 [2021-03-25 14:56:05,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 67 transitions, 730 flow. Second operand has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:05,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:05,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 176 [2021-03-25 14:56:05,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:05,971 INFO L129 PetriNetUnfolder]: 106/370 cut-off events. [2021-03-25 14:56:05,972 INFO L130 PetriNetUnfolder]: For 3258/3551 co-relation queries the response was YES. [2021-03-25 14:56:05,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 370 events. 106/370 cut-off events. For 3258/3551 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2603 event pairs, 10 based on Foata normal form. 48/402 useless extension candidates. Maximal degree in co-relation 2033. Up to 195 conditions per place. [2021-03-25 14:56:05,976 INFO L132 encePairwiseOnDemand]: 169/176 looper letters, 26 selfloop transitions, 10 changer transitions 3/68 dead transitions. [2021-03-25 14:56:05,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 68 transitions, 803 flow [2021-03-25 14:56:05,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:56:05,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:56:05,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 635 transitions. [2021-03-25 14:56:05,979 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7215909090909091 [2021-03-25 14:56:05,979 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 635 transitions. [2021-03-25 14:56:05,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 635 transitions. [2021-03-25 14:56:05,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:05,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 635 transitions. [2021-03-25 14:56:05,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:05,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:05,982 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:05,982 INFO L185 Difference]: Start difference. First operand has 82 places, 67 transitions, 730 flow. Second operand 5 states and 635 transitions. [2021-03-25 14:56:05,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 68 transitions, 803 flow [2021-03-25 14:56:05,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 68 transitions, 748 flow, removed 14 selfloop flow, removed 3 redundant places. [2021-03-25 14:56:05,994 INFO L241 Difference]: Finished difference. Result has 84 places, 65 transitions, 650 flow [2021-03-25 14:56:05,994 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=650, PETRI_PLACES=84, PETRI_TRANSITIONS=65} [2021-03-25 14:56:05,994 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 38 predicate places. [2021-03-25 14:56:05,994 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:05,994 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 65 transitions, 650 flow [2021-03-25 14:56:05,995 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 65 transitions, 650 flow [2021-03-25 14:56:05,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 65 transitions, 650 flow [2021-03-25 14:56:06,031 INFO L129 PetriNetUnfolder]: 99/339 cut-off events. [2021-03-25 14:56:06,031 INFO L130 PetriNetUnfolder]: For 2211/2264 co-relation queries the response was YES. [2021-03-25 14:56:06,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1622 conditions, 339 events. 99/339 cut-off events. For 2211/2264 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2329 event pairs, 10 based on Foata normal form. 24/352 useless extension candidates. Maximal degree in co-relation 1580. Up to 75 conditions per place. [2021-03-25 14:56:06,036 INFO L142 LiptonReduction]: Number of co-enabled transitions 554 [2021-03-25 14:56:06,237 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-25 14:56:06,665 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2021-03-25 14:56:06,798 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-03-25 14:56:06,804 INFO L154 LiptonReduction]: Checked pairs total: 62 [2021-03-25 14:56:06,804 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 14:56:06,804 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 810 [2021-03-25 14:56:06,805 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 63 transitions, 653 flow [2021-03-25 14:56:06,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 124.0) internal successors, (868), 7 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:06,805 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:06,805 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:06,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 14:56:06,806 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:06,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:06,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1880905703, now seen corresponding path program 2 times [2021-03-25 14:56:06,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:06,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356098817] [2021-03-25 14:56:06,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:06,858 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 14:56:06,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 14:56:06,887 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.2 percent of original size [2021-03-25 14:56:06,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 14:56:06,929 INFO L142 QuantifierPusher]: treesize reduction 11, result has 89.6 percent of original size [2021-03-25 14:56:06,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-25 14:56:06,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:06,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 14:56:07,001 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-25 14:56:07,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 14:56:07,012 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-25 14:56:07,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 14:56:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:07,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356098817] [2021-03-25 14:56:07,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:07,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 14:56:07,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090068716] [2021-03-25 14:56:07,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 14:56:07,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:07,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 14:56:07,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 14:56:07,016 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 177 [2021-03-25 14:56:07,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 63 transitions, 653 flow. Second operand has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:07,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 177 [2021-03-25 14:56:07,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:07,194 INFO L129 PetriNetUnfolder]: 72/230 cut-off events. [2021-03-25 14:56:07,194 INFO L130 PetriNetUnfolder]: For 2313/2408 co-relation queries the response was YES. [2021-03-25 14:56:07,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 230 events. 72/230 cut-off events. For 2313/2408 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1178 event pairs, 10 based on Foata normal form. 28/252 useless extension candidates. Maximal degree in co-relation 1345. Up to 88 conditions per place. [2021-03-25 14:56:07,196 INFO L132 encePairwiseOnDemand]: 170/177 looper letters, 20 selfloop transitions, 12 changer transitions 8/61 dead transitions. [2021-03-25 14:56:07,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 61 transitions, 751 flow [2021-03-25 14:56:07,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 14:56:07,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 14:56:07,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 746 transitions. [2021-03-25 14:56:07,199 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7024482109227872 [2021-03-25 14:56:07,199 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 746 transitions. [2021-03-25 14:56:07,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 746 transitions. [2021-03-25 14:56:07,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:07,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 746 transitions. [2021-03-25 14:56:07,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.33333333333333) internal successors, (746), 6 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,203 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,203 INFO L185 Difference]: Start difference. First operand has 84 places, 63 transitions, 653 flow. Second operand 6 states and 746 transitions. [2021-03-25 14:56:07,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 61 transitions, 751 flow [2021-03-25 14:56:07,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 61 transitions, 686 flow, removed 21 selfloop flow, removed 7 redundant places. [2021-03-25 14:56:07,210 INFO L241 Difference]: Finished difference. Result has 79 places, 50 transitions, 512 flow [2021-03-25 14:56:07,211 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=79, PETRI_TRANSITIONS=50} [2021-03-25 14:56:07,211 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 33 predicate places. [2021-03-25 14:56:07,211 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:07,211 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 50 transitions, 512 flow [2021-03-25 14:56:07,211 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 50 transitions, 512 flow [2021-03-25 14:56:07,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 50 transitions, 512 flow [2021-03-25 14:56:07,236 INFO L129 PetriNetUnfolder]: 67/210 cut-off events. [2021-03-25 14:56:07,236 INFO L130 PetriNetUnfolder]: For 1504/1517 co-relation queries the response was YES. [2021-03-25 14:56:07,237 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1116 conditions, 210 events. 67/210 cut-off events. For 1504/1517 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1041 event pairs, 9 based on Foata normal form. 3/207 useless extension candidates. Maximal degree in co-relation 1078. Up to 61 conditions per place. [2021-03-25 14:56:07,239 INFO L142 LiptonReduction]: Number of co-enabled transitions 308 [2021-03-25 14:56:07,241 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:07,241 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:07,241 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-25 14:56:07,242 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 50 transitions, 512 flow [2021-03-25 14:56:07,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,242 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:07,242 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:07,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 14:56:07,242 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:07,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:07,243 INFO L82 PathProgramCache]: Analyzing trace with hash -17468373, now seen corresponding path program 3 times [2021-03-25 14:56:07,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:07,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079873452] [2021-03-25 14:56:07,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:07,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:07,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 14:56:07,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:07,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 14:56:07,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:07,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:56:07,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:07,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:56:07,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:07,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 14:56:07,355 INFO L142 QuantifierPusher]: treesize reduction 8, result has 72.4 percent of original size [2021-03-25 14:56:07,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 14:56:07,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:07,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079873452] [2021-03-25 14:56:07,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:07,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 14:56:07,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835154494] [2021-03-25 14:56:07,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 14:56:07,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:07,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 14:56:07,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 14:56:07,365 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 177 [2021-03-25 14:56:07,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 50 transitions, 512 flow. Second operand has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:07,366 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 177 [2021-03-25 14:56:07,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:07,503 INFO L129 PetriNetUnfolder]: 69/217 cut-off events. [2021-03-25 14:56:07,503 INFO L130 PetriNetUnfolder]: For 1873/1967 co-relation queries the response was YES. [2021-03-25 14:56:07,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1259 conditions, 217 events. 69/217 cut-off events. For 1873/1967 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1067 event pairs, 9 based on Foata normal form. 24/237 useless extension candidates. Maximal degree in co-relation 1219. Up to 97 conditions per place. [2021-03-25 14:56:07,505 INFO L132 encePairwiseOnDemand]: 170/177 looper letters, 16 selfloop transitions, 9 changer transitions 6/52 dead transitions. [2021-03-25 14:56:07,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 52 transitions, 600 flow [2021-03-25 14:56:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 14:56:07,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 14:56:07,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 763 transitions. [2021-03-25 14:56:07,508 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7184557438794726 [2021-03-25 14:56:07,508 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 763 transitions. [2021-03-25 14:56:07,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 763 transitions. [2021-03-25 14:56:07,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:07,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 763 transitions. [2021-03-25 14:56:07,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.16666666666667) internal successors, (763), 6 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,512 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,512 INFO L185 Difference]: Start difference. First operand has 76 places, 50 transitions, 512 flow. Second operand 6 states and 763 transitions. [2021-03-25 14:56:07,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 52 transitions, 600 flow [2021-03-25 14:56:07,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 52 transitions, 546 flow, removed 11 selfloop flow, removed 7 redundant places. [2021-03-25 14:56:07,518 INFO L241 Difference]: Finished difference. Result has 75 places, 46 transitions, 451 flow [2021-03-25 14:56:07,519 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=451, PETRI_PLACES=75, PETRI_TRANSITIONS=46} [2021-03-25 14:56:07,519 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 29 predicate places. [2021-03-25 14:56:07,519 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:07,519 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 46 transitions, 451 flow [2021-03-25 14:56:07,519 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 46 transitions, 451 flow [2021-03-25 14:56:07,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 46 transitions, 451 flow [2021-03-25 14:56:07,542 INFO L129 PetriNetUnfolder]: 66/205 cut-off events. [2021-03-25 14:56:07,542 INFO L130 PetriNetUnfolder]: For 1302/1318 co-relation queries the response was YES. [2021-03-25 14:56:07,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 205 events. 66/205 cut-off events. For 1302/1318 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 988 event pairs, 6 based on Foata normal form. 4/204 useless extension candidates. Maximal degree in co-relation 1017. Up to 60 conditions per place. [2021-03-25 14:56:07,545 INFO L142 LiptonReduction]: Number of co-enabled transitions 294 [2021-03-25 14:56:07,547 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:56:07,547 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:56:07,547 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-25 14:56:07,548 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 46 transitions, 451 flow [2021-03-25 14:56:07,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,548 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:07,548 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:07,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 14:56:07,548 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:07,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:07,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1639024167, now seen corresponding path program 1 times [2021-03-25 14:56:07,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:07,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166605379] [2021-03-25 14:56:07,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:07,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:07,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:07,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:07,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:07,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:07,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:07,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:07,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:56:07,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:07,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:56:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:07,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166605379] [2021-03-25 14:56:07,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:07,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 14:56:07,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849683083] [2021-03-25 14:56:07,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:56:07,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:07,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:56:07,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:56:07,603 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 177 [2021-03-25 14:56:07,604 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 46 transitions, 451 flow. Second operand has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,604 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:07,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 177 [2021-03-25 14:56:07,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:07,678 INFO L129 PetriNetUnfolder]: 104/256 cut-off events. [2021-03-25 14:56:07,678 INFO L130 PetriNetUnfolder]: For 877/1027 co-relation queries the response was YES. [2021-03-25 14:56:07,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1159 conditions, 256 events. 104/256 cut-off events. For 877/1027 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1288 event pairs, 2 based on Foata normal form. 46/267 useless extension candidates. Maximal degree in co-relation 1122. Up to 83 conditions per place. [2021-03-25 14:56:07,681 INFO L132 encePairwiseOnDemand]: 171/177 looper letters, 5 selfloop transitions, 11 changer transitions 11/53 dead transitions. [2021-03-25 14:56:07,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 53 transitions, 527 flow [2021-03-25 14:56:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 14:56:07,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 14:56:07,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1016 transitions. [2021-03-25 14:56:07,684 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8200161420500404 [2021-03-25 14:56:07,685 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1016 transitions. [2021-03-25 14:56:07,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1016 transitions. [2021-03-25 14:56:07,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:07,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1016 transitions. [2021-03-25 14:56:07,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 145.14285714285714) internal successors, (1016), 7 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) [2021-03-25 14:56:07,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,690 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:07,690 INFO L185 Difference]: Start difference. First operand has 70 places, 46 transitions, 451 flow. Second operand 7 states and 1016 transitions. [2021-03-25 14:56:07,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 53 transitions, 527 flow [2021-03-25 14:56:07,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 53 transitions, 454 flow, removed 21 selfloop flow, removed 6 redundant places. [2021-03-25 14:56:07,695 INFO L241 Difference]: Finished difference. Result has 73 places, 40 transitions, 364 flow [2021-03-25 14:56:07,696 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=364, PETRI_PLACES=73, PETRI_TRANSITIONS=40} [2021-03-25 14:56:07,696 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 27 predicate places. [2021-03-25 14:56:07,696 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:07,696 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 40 transitions, 364 flow [2021-03-25 14:56:07,696 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 40 transitions, 364 flow [2021-03-25 14:56:07,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 40 transitions, 364 flow [2021-03-25 14:56:07,705 INFO L129 PetriNetUnfolder]: 19/70 cut-off events. [2021-03-25 14:56:07,705 INFO L130 PetriNetUnfolder]: For 279/291 co-relation queries the response was YES. [2021-03-25 14:56:07,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 70 events. 19/70 cut-off events. For 279/291 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 200 event pairs, 1 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 333. Up to 21 conditions per place. [2021-03-25 14:56:07,706 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-25 14:56:07,896 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 14:56:08,268 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-25 14:56:08,393 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 14:56:08,948 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 180 [2021-03-25 14:56:09,194 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-25 14:56:10,377 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 334 DAG size of output: 256 [2021-03-25 14:56:10,807 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2021-03-25 14:56:11,173 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 85 [2021-03-25 14:56:11,468 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-25 14:56:11,705 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-25 14:56:12,216 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-25 14:56:12,691 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-25 14:56:12,810 INFO L154 LiptonReduction]: Checked pairs total: 54 [2021-03-25 14:56:12,810 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 14:56:12,810 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5114 [2021-03-25 14:56:12,811 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 35 transitions, 360 flow [2021-03-25 14:56:12,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:12,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:12,812 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] [2021-03-25 14:56:12,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-25 14:56:12,812 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:12,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:12,812 INFO L82 PathProgramCache]: Analyzing trace with hash -782936171, now seen corresponding path program 1 times [2021-03-25 14:56:12,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:12,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698970278] [2021-03-25 14:56:12,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:56:12,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:12,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 14:56:12,899 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 14:56:12,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 14:56:12,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:12,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 14:56:12,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:12,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 14:56:12,954 INFO L142 QuantifierPusher]: treesize reduction 37, result has 48.6 percent of original size [2021-03-25 14:56:12,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 14:56:12,985 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.3 percent of original size [2021-03-25 14:56:12,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 14:56:13,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:56:13,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 14:56:13,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:56:13,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698970278] [2021-03-25 14:56:13,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:56:13,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-25 14:56:13,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895617447] [2021-03-25 14:56:13,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-25 14:56:13,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:56:13,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-25 14:56:13,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-25 14:56:13,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 185 [2021-03-25 14:56:13,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 35 transitions, 360 flow. Second operand has 9 states, 9 states have (on average 119.88888888888889) internal successors, (1079), 9 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:13,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:56:13,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 185 [2021-03-25 14:56:13,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:56:13,255 INFO L129 PetriNetUnfolder]: 32/103 cut-off events. [2021-03-25 14:56:13,255 INFO L130 PetriNetUnfolder]: For 1037/1093 co-relation queries the response was YES. [2021-03-25 14:56:13,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 103 events. 32/103 cut-off events. For 1037/1093 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 407 event pairs, 0 based on Foata normal form. 24/122 useless extension candidates. Maximal degree in co-relation 533. Up to 45 conditions per place. [2021-03-25 14:56:13,259 INFO L132 encePairwiseOnDemand]: 178/185 looper letters, 14 selfloop transitions, 7 changer transitions 6/43 dead transitions. [2021-03-25 14:56:13,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 43 transitions, 521 flow [2021-03-25 14:56:13,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 14:56:13,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 14:56:13,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 854 transitions. [2021-03-25 14:56:13,262 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6594594594594595 [2021-03-25 14:56:13,262 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 854 transitions. [2021-03-25 14:56:13,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 854 transitions. [2021-03-25 14:56:13,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:56:13,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 854 transitions. [2021-03-25 14:56:13,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:13,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:13,266 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 185.0) internal successors, (1480), 8 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:13,266 INFO L185 Difference]: Start difference. First operand has 66 places, 35 transitions, 360 flow. Second operand 7 states and 854 transitions. [2021-03-25 14:56:13,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 43 transitions, 521 flow [2021-03-25 14:56:13,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 43 transitions, 410 flow, removed 25 selfloop flow, removed 16 redundant places. [2021-03-25 14:56:13,270 INFO L241 Difference]: Finished difference. Result has 60 places, 35 transitions, 310 flow [2021-03-25 14:56:13,270 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=310, PETRI_PLACES=60, PETRI_TRANSITIONS=35} [2021-03-25 14:56:13,270 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 14 predicate places. [2021-03-25 14:56:13,270 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:56:13,270 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 35 transitions, 310 flow [2021-03-25 14:56:13,270 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 35 transitions, 310 flow [2021-03-25 14:56:13,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 35 transitions, 310 flow [2021-03-25 14:56:13,278 INFO L129 PetriNetUnfolder]: 20/67 cut-off events. [2021-03-25 14:56:13,279 INFO L130 PetriNetUnfolder]: For 413/423 co-relation queries the response was YES. [2021-03-25 14:56:13,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 67 events. 20/67 cut-off events. For 413/423 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 209 event pairs, 2 based on Foata normal form. 8/74 useless extension candidates. Maximal degree in co-relation 271. Up to 21 conditions per place. [2021-03-25 14:56:13,280 INFO L142 LiptonReduction]: Number of co-enabled transitions 142 [2021-03-25 14:56:13,477 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-25 14:56:13,918 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 94 [2021-03-25 14:56:14,095 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-03-25 14:56:14,097 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-25 14:56:14,097 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:56:14,097 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 827 [2021-03-25 14:56:14,097 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 35 transitions, 313 flow [2021-03-25 14:56:14,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 119.88888888888889) internal successors, (1079), 9 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:56:14,098 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:56:14,098 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:56:14,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-25 14:56:14,098 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:56:14,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:56:14,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1690698607, now seen corresponding path program 1 times [2021-03-25 14:56:14,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:56:14,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406766028] [2021-03-25 14:56:14,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:56:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 14:56:14,125 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 14:56:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 14:56:14,150 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 14:56:14,182 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 14:56:14,182 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 14:56:14,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-25 14:56:14,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 02:56:14 BasicIcfg [2021-03-25 14:56:14,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 14:56:14,279 INFO L168 Benchmark]: Toolchain (without parser) took 31636.24 ms. Allocated memory was 255.9 MB in the beginning and 853.5 MB in the end (delta: 597.7 MB). Free memory was 234.4 MB in the beginning and 774.1 MB in the end (delta: -539.7 MB). Peak memory consumption was 58.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:14,279 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:56:14,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.30 ms. Allocated memory was 255.9 MB in the beginning and 335.5 MB in the end (delta: 79.7 MB). Free memory was 234.4 MB in the beginning and 295.4 MB in the end (delta: -61.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:14,283 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.12 ms. Allocated memory is still 335.5 MB. Free memory was 295.4 MB in the beginning and 292.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:14,283 INFO L168 Benchmark]: Boogie Preprocessor took 29.07 ms. Allocated memory is still 335.5 MB. Free memory was 292.5 MB in the beginning and 290.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:14,283 INFO L168 Benchmark]: RCFGBuilder took 1768.57 ms. Allocated memory is still 335.5 MB. Free memory was 290.4 MB in the beginning and 278.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:14,284 INFO L168 Benchmark]: TraceAbstraction took 29170.31 ms. Allocated memory was 335.5 MB in the beginning and 853.5 MB in the end (delta: 518.0 MB). Free memory was 277.5 MB in the beginning and 774.1 MB in the end (delta: -496.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.0 GB. [2021-03-25 14:56:14,285 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 607.30 ms. Allocated memory was 255.9 MB in the beginning and 335.5 MB in the end (delta: 79.7 MB). Free memory was 234.4 MB in the beginning and 295.4 MB in the end (delta: -61.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.12 ms. Allocated memory is still 335.5 MB. Free memory was 295.4 MB in the beginning and 292.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.07 ms. Allocated memory is still 335.5 MB. Free memory was 292.5 MB in the beginning and 290.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1768.57 ms. Allocated memory is still 335.5 MB. Free memory was 290.4 MB in the beginning and 278.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 29170.31 ms. Allocated memory was 335.5 MB in the beginning and 853.5 MB in the end (delta: 518.0 MB). Free memory was 277.5 MB in the beginning and 774.1 MB in the end (delta: -496.6 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7962.1ms, 100 PlacesBefore, 46 PlacesAfterwards, 92 TransitionsBefore, 37 TransitionsAfterwards, 1602 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 2709 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1459, positive: 1380, positive conditional: 0, positive unconditional: 1380, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1088, positive: 1052, positive conditional: 0, positive unconditional: 1052, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1088, positive: 1052, positive conditional: 0, positive unconditional: 1052, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1088, positive: 1045, positive conditional: 0, positive unconditional: 1045, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 622, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 602, negative conditional: 0, negative unconditional: 602, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1459, positive: 328, positive conditional: 0, positive unconditional: 328, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 1088, unknown conditional: 0, unknown unconditional: 1088] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3029.4ms, 43 PlacesBefore, 31 PlacesAfterwards, 32 TransitionsBefore, 22 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 1040 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 281, positive: 202, positive conditional: 0, positive unconditional: 202, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 57, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 57, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 57, positive: 39, positive conditional: 0, positive unconditional: 39, 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: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 316, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 316, negative conditional: 0, negative unconditional: 316, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 281, positive: 163, positive conditional: 0, positive unconditional: 163, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 57, unknown conditional: 0, unknown unconditional: 57] , Statistics on independence cache: Total cache size (in pairs): 130, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 951.6ms, 32 PlacesBefore, 31 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 444 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 85, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , 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: 200, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 200, negative conditional: 0, negative unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 85, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 140, Positive cache size: 100, Positive conditional cache size: 0, Positive unconditional cache size: 100, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.8ms, 33 PlacesBefore, 33 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 209 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 39, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 55, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 102, Positive conditional cache size: 0, Positive unconditional cache size: 102, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.8ms, 34 PlacesBefore, 34 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 175 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.8ms, 36 PlacesBefore, 36 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 218 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 58, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 19, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 58, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6ms, 39 PlacesBefore, 39 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 197 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 152, Positive cache size: 106, Positive conditional cache size: 0, Positive unconditional cache size: 106, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.5ms, 41 PlacesBefore, 41 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 298 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 140 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 30, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 106, Positive conditional cache size: 0, Positive unconditional cache size: 106, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.3ms, 46 PlacesBefore, 46 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 99 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 154, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.0ms, 52 PlacesBefore, 52 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 366 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 259 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 77, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 77, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.0ms, 56 PlacesBefore, 56 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 372 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 254 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 59, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 13, negative conditional: 0, negative unconditional: 13, 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: 59, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.4ms, 58 PlacesBefore, 58 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 376 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 174 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 9, negative conditional: 0, negative unconditional: 9, 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: 48, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.0ms, 62 PlacesBefore, 62 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 539 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 146, positive: 123, positive conditional: 0, positive unconditional: 123, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 146, positive: 122, positive conditional: 0, positive unconditional: 122, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 157, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 126.2ms, 66 PlacesBefore, 66 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 843 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 279, positive: 243, positive conditional: 0, positive unconditional: 243, negative: 36, negative conditional: 0, negative unconditional: 36, 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: 279, positive: 243, positive conditional: 0, positive unconditional: 243, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 157, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 170.6ms, 71 PlacesBefore, 69 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 436 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1303 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 519, positive: 467, positive conditional: 0, positive unconditional: 467, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 519, positive: 464, positive conditional: 0, positive unconditional: 464, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 154, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.6ms, 70 PlacesBefore, 70 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 520 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): 154, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.5ms, 74 PlacesBefore, 74 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 540 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): 154, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 83.9ms, 76 PlacesBefore, 76 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 530 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): 154, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 94.6ms, 77 PlacesBefore, 77 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 532 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): 154, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 40, Negative conditional cache size: 0, Negative unconditional cache size: 40 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2774.2ms, 82 PlacesBefore, 82 PlacesAfterwards, 67 TransitionsBefore, 67 TransitionsAfterwards, 570 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, 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: 2, positive: 2, positive conditional: 0, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 141, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 809.7ms, 84 PlacesBefore, 84 PlacesAfterwards, 65 TransitionsBefore, 63 TransitionsAfterwards, 554 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 62 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 62, positive conditional: 0, positive unconditional: 62, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 116, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.0ms, 79 PlacesBefore, 76 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 308 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): 116, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.7ms, 75 PlacesBefore, 70 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 294 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): 116, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5113.7ms, 73 PlacesBefore, 66 PlacesAfterwards, 40 TransitionsBefore, 35 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 4 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, 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: 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , 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: 54, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 55, Positive conditional cache size: 0, Positive unconditional cache size: 55, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 826.6ms, 60 PlacesBefore, 58 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, 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: 2, positive: 2, positive conditional: 0, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 54, Positive conditional cache size: 0, Positive unconditional cache size: 54, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - 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; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L718] 0 _Bool y$flush_delayed; [L719] 0 int y$mem_tmp; [L720] 0 _Bool y$r_buff0_thd0; [L721] 0 _Bool y$r_buff0_thd1; [L722] 0 _Bool y$r_buff0_thd2; [L723] 0 _Bool y$r_buff0_thd3; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd3; [L728] 0 _Bool y$read_delayed; [L729] 0 int *y$read_delayed_var; [L730] 0 int y$w_buff0; [L731] 0 _Bool y$w_buff0_used; [L732] 0 int y$w_buff1; [L733] 0 _Bool y$w_buff1_used; [L734] 0 _Bool weak$$choice0; [L735] 0 _Bool weak$$choice2; [L813] 0 pthread_t t2189; [L814] FCALL, FORK 0 pthread_create(&t2189, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=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] [L739] 1 y$w_buff1 = y$w_buff0 [L740] 1 y$w_buff0 = 2 [L741] 1 y$w_buff1_used = y$w_buff0_used [L742] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L744] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L745] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L746] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L747] 1 y$r_buff1_thd3 = y$r_buff0_thd3 [L748] 1 y$r_buff0_thd1 = (_Bool)1 [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$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=1, 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$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L815] 0 pthread_t t2190; [L816] FCALL, FORK 0 pthread_create(&t2190, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=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=1, 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$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L768] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=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=1, 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$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L817] 0 pthread_t t2191; [L818] FCALL, FORK 0 pthread_create(&t2191, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=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=1, 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$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] 3 __unbuffered_p2_EAX = x [L788] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, 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=1, 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$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L791] 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) [L791] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L754] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L755] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L756] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L757] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L757] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L758] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L758] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] 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) [L771] 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) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 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 [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 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 [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L763] 1 return 0; [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 3 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] 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) [L824] 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) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 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 [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 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 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$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$w_buff0)) [L836] EXPR 0 !y$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) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] 0 y$w_buff0 = weak$$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)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L837] EXPR 0 weak$$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$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$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)) [L838] EXPR 0 !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) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] 0 y$w_buff0_used = weak$$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)) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L839] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$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)) [L840] EXPR 0 !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) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] 0 y$r_buff0_thd0 = weak$$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)) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L841] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=55, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, 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$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 28980.6ms, OverallIterations: 25, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3171.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8025.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 119 SDtfs, 50 SDslu, 34 SDs, 0 SdLazy, 737 SolverSat, 166 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 918.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1165.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=735occurred in iteration=14, InterpolantAutomatonStates: 112, 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: 69.7ms SsaConstructionTime, 550.8ms SatisfiabilityAnalysisTime, 2131.2ms InterpolantComputationTime, 357 NumberOfCodeBlocks, 357 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 317 ConstructedInterpolants, 0 QuantifiedInterpolants, 3473 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 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...