/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:41:13,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:41:13,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:41:13,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:41:13,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:41:13,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:41:13,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:41:13,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:41:13,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:41:13,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:41:13,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:41:13,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:41:13,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:41:13,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:41:13,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:41:13,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:41:13,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:41:13,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:41:13,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:41:13,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:41:13,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:41:13,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:41:13,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:41:13,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:41:13,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:41:13,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:41:13,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:41:13,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:41:13,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:41:13,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:41:13,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:41:13,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:41:13,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:41:13,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:41:13,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:41:13,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:41:13,723 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:41:13,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:41:13,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:41:13,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:41:13,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:41:13,766 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:41:13,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:41:13,767 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:41:13,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:41:13,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:41:13,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:41:13,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:41:13,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:41:13,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:41:13,768 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:41:13,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:41:13,769 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:41:13,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:41:13,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:41:13,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:41:13,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:41:13,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:41:13,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:41:13,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:41:13,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:41:13,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:41:13,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:41:13,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:41:13,771 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:41:13,771 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:41:13,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:41:13,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:41:14,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:41:14,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:41:14,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:41:14,092 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:41:14,092 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:41:14,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_power.opt.i [2021-03-26 10:41:14,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7097dad5/35edcd10bebb49f585066440778364f1/FLAGcc1b80d2d [2021-03-26 10:41:14,689 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:41:14,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_power.opt.i [2021-03-26 10:41:14,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7097dad5/35edcd10bebb49f585066440778364f1/FLAGcc1b80d2d [2021-03-26 10:41:15,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7097dad5/35edcd10bebb49f585066440778364f1 [2021-03-26 10:41:15,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:41:15,138 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:41:15,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:41:15,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:41:15,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:41:15,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ab5f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15, skipping insertion in model container [2021-03-26 10:41:15,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:41:15,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:41:15,340 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/safe030_power.opt.i[951,964] [2021-03-26 10:41:15,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:41:15,538 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:41:15,548 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/safe030_power.opt.i[951,964] [2021-03-26 10:41:15,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:41:15,660 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:41:15,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15 WrapperNode [2021-03-26 10:41:15,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:41:15,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:41:15,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:41:15,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:41:15,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:41:15,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:41:15,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:41:15,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:41:15,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (1/1) ... [2021-03-26 10:41:15,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:41:15,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:41:15,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:41:15,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:41:15,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (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 [2021-03-26 10:41:15,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:41:15,802 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:41:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:41:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:41:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:41:15,803 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:41:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:41:15,803 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:41:15,803 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:41:15,803 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:41:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:41:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:41:15,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:41:15,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:41:15,805 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:41:17,472 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:41:17,473 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 10:41:17,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:41:17 BoogieIcfgContainer [2021-03-26 10:41:17,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:41:17,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:41:17,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:41:17,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:41:17,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:41:15" (1/3) ... [2021-03-26 10:41:17,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf95aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:41:17, skipping insertion in model container [2021-03-26 10:41:17,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:41:15" (2/3) ... [2021-03-26 10:41:17,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf95aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:41:17, skipping insertion in model container [2021-03-26 10:41:17,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:41:17" (3/3) ... [2021-03-26 10:41:17,480 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_power.opt.i [2021-03-26 10:41:17,486 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:41:17,489 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 10:41:17,490 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:41:17,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,516 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,516 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,516 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,516 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,517 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,517 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,518 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,518 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,518 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,519 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,521 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,521 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,522 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,522 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,523 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,524 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,525 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,526 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,527 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,527 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,528 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:41:17,533 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:41:17,549 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-26 10:41:17,566 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:41:17,566 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:41:17,566 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:41:17,566 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:41:17,566 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:41:17,566 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:41:17,566 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:41:17,566 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:41:17,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 10:41:17,606 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 10:41:17,606 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:17,609 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 4. 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. [2021-03-26 10:41:17,609 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2021-03-26 10:41:17,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 92 transitions, 193 flow [2021-03-26 10:41:17,614 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:17,625 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 10:41:17,628 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-26 10:41:17,629 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 193 flow [2021-03-26 10:41:17,644 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-26 10:41:17,644 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:17,645 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 4. Compared 69 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. [2021-03-26 10:41:17,647 INFO L142 LiptonReduction]: Number of co-enabled transitions 1578 [2021-03-26 10:41:18,860 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 10:41:19,238 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 10:41:19,371 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-26 10:41:20,368 WARN L205 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 185 [2021-03-26 10:41:20,666 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-03-26 10:41:22,065 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-03-26 10:41:22,667 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-03-26 10:41:23,556 INFO L154 LiptonReduction]: Checked pairs total: 2818 [2021-03-26 10:41:23,556 INFO L156 LiptonReduction]: Total number of compositions: 62 [2021-03-26 10:41:23,558 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5945 [2021-03-26 10:41:23,568 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 10:41:23,568 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:23,568 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:23,568 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:23,569 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:23,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:23,573 INFO L82 PathProgramCache]: Analyzing trace with hash 903762281, now seen corresponding path program 1 times [2021-03-26 10:41:23,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:23,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437458168] [2021-03-26 10:41:23,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:23,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:23,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:23,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:23,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:23,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437458168] [2021-03-26 10:41:23,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:23,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:23,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463348207] [2021-03-26 10:41:23,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:41:23,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:23,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:41:23,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:41:23,850 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 157 [2021-03-26 10:41:23,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:23,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:23,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 157 [2021-03-26 10:41:23,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:23,925 INFO L129 PetriNetUnfolder]: 16/90 cut-off events. [2021-03-26 10:41:23,925 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:23,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 90 events. 16/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 281 event pairs, 6 based on Foata normal form. 5/88 useless extension candidates. Maximal degree in co-relation 117. Up to 27 conditions per place. [2021-03-26 10:41:23,927 INFO L132 encePairwiseOnDemand]: 153/157 looper letters, 7 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2021-03-26 10:41:23,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 37 transitions, 101 flow [2021-03-26 10:41:23,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:41:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:41:23,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 426 transitions. [2021-03-26 10:41:23,948 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9044585987261147 [2021-03-26 10:41:23,949 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 426 transitions. [2021-03-26 10:41:23,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 426 transitions. [2021-03-26 10:41:23,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:23,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 426 transitions. [2021-03-26 10:41:23,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:23,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:23,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:23,971 INFO L185 Difference]: Start difference. First operand has 46 places, 37 transitions, 83 flow. Second operand 3 states and 426 transitions. [2021-03-26 10:41:23,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 37 transitions, 101 flow [2021-03-26 10:41:23,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 98 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:41:23,979 INFO L241 Difference]: Finished difference. Result has 43 places, 34 transitions, 78 flow [2021-03-26 10:41:23,981 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, 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=78, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2021-03-26 10:41:23,982 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-03-26 10:41:23,982 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:23,982 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 34 transitions, 78 flow [2021-03-26 10:41:23,983 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 34 transitions, 78 flow [2021-03-26 10:41:23,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 34 transitions, 78 flow [2021-03-26 10:41:23,989 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-03-26 10:41:23,989 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:23,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 10:41:23,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 318 [2021-03-26 10:41:24,302 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 10:41:24,437 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 10:41:24,855 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:41:25,157 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 10:41:25,815 WARN L205 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-26 10:41:26,416 WARN L205 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-26 10:41:27,007 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-03-26 10:41:27,308 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-03-26 10:41:27,899 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2021-03-26 10:41:28,503 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2021-03-26 10:41:29,165 INFO L154 LiptonReduction]: Checked pairs total: 863 [2021-03-26 10:41:29,166 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-26 10:41:29,166 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5184 [2021-03-26 10:41:29,167 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 58 flow [2021-03-26 10:41:29,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:29,167 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:29,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:29,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:41:29,168 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:29,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:29,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1787014718, now seen corresponding path program 1 times [2021-03-26 10:41:29,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:29,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398816411] [2021-03-26 10:41:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:29,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:29,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:29,289 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 10:41:29,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 10:41:29,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:29,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398816411] [2021-03-26 10:41:29,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:29,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:29,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940181248] [2021-03-26 10:41:29,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:41:29,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:29,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:41:29,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:41:29,296 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 168 [2021-03-26 10:41:29,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 58 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) [2021-03-26 10:41:29,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:29,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 168 [2021-03-26 10:41:29,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:29,341 INFO L129 PetriNetUnfolder]: 7/46 cut-off events. [2021-03-26 10:41:29,341 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:41:29,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 46 events. 7/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 111 event pairs, 1 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 64. Up to 10 conditions per place. [2021-03-26 10:41:29,342 INFO L132 encePairwiseOnDemand]: 163/168 looper letters, 3 selfloop transitions, 3 changer transitions 7/31 dead transitions. [2021-03-26 10:41:29,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 96 flow [2021-03-26 10:41:29,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:41:29,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:41:29,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 728 transitions. [2021-03-26 10:41:29,348 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2021-03-26 10:41:29,348 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 728 transitions. [2021-03-26 10:41:29,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 728 transitions. [2021-03-26 10:41:29,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:29,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 728 transitions. [2021-03-26 10:41:29,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.6) internal successors, (728), 5 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:29,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:29,351 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:29,351 INFO L185 Difference]: Start difference. First operand has 33 places, 24 transitions, 58 flow. Second operand 5 states and 728 transitions. [2021-03-26 10:41:29,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 96 flow [2021-03-26 10:41:29,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:41:29,353 INFO L241 Difference]: Finished difference. Result has 37 places, 24 transitions, 73 flow [2021-03-26 10:41:29,353 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=73, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2021-03-26 10:41:29,353 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -9 predicate places. [2021-03-26 10:41:29,354 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:29,355 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 24 transitions, 73 flow [2021-03-26 10:41:29,355 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 24 transitions, 73 flow [2021-03-26 10:41:29,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 24 transitions, 73 flow [2021-03-26 10:41:29,360 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-26 10:41:29,360 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 10:41:29,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 30 events. 3/30 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 45. Up to 10 conditions per place. [2021-03-26 10:41:29,361 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-26 10:41:29,647 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-03-26 10:41:30,155 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:41:30,277 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:41:30,576 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-26 10:41:30,706 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-26 10:41:30,735 INFO L154 LiptonReduction]: Checked pairs total: 594 [2021-03-26 10:41:30,736 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:41:30,736 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1382 [2021-03-26 10:41:30,737 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 69 flow [2021-03-26 10:41:30,737 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) [2021-03-26 10:41:30,738 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:30,738 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:30,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:41:30,738 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:30,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:30,738 INFO L82 PathProgramCache]: Analyzing trace with hash -498930536, now seen corresponding path program 1 times [2021-03-26 10:41:30,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:30,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365015151] [2021-03-26 10:41:30,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:30,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:30,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:30,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:30,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:30,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:30,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365015151] [2021-03-26 10:41:30,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:30,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:30,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944245818] [2021-03-26 10:41:30,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:41:30,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:30,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:41:30,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:41:30,843 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 170 [2021-03-26 10:41:30,844 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:30,844 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:30,844 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 170 [2021-03-26 10:41:30,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:30,860 INFO L129 PetriNetUnfolder]: 7/47 cut-off events. [2021-03-26 10:41:30,861 INFO L130 PetriNetUnfolder]: For 12/16 co-relation queries the response was YES. [2021-03-26 10:41:30,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 47 events. 7/47 cut-off events. For 12/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 137 event pairs, 3 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 82. Up to 15 conditions per place. [2021-03-26 10:41:30,861 INFO L132 encePairwiseOnDemand]: 166/170 looper letters, 3 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2021-03-26 10:41:30,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 85 flow [2021-03-26 10:41:30,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:41:30,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:41:30,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2021-03-26 10:41:30,867 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2021-03-26 10:41:30,868 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 460 transitions. [2021-03-26 10:41:30,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 460 transitions. [2021-03-26 10:41:30,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:30,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 460 transitions. [2021-03-26 10:41:30,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:30,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:30,871 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:30,871 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 69 flow. Second operand 3 states and 460 transitions. [2021-03-26 10:41:30,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 85 flow [2021-03-26 10:41:30,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 78 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 10:41:30,872 INFO L241 Difference]: Finished difference. Result has 32 places, 24 transitions, 81 flow [2021-03-26 10:41:30,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=62, 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=81, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2021-03-26 10:41:30,873 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -14 predicate places. [2021-03-26 10:41:30,873 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:30,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 24 transitions, 81 flow [2021-03-26 10:41:30,873 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 24 transitions, 81 flow [2021-03-26 10:41:30,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 24 transitions, 81 flow [2021-03-26 10:41:30,879 INFO L129 PetriNetUnfolder]: 10/45 cut-off events. [2021-03-26 10:41:30,879 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-03-26 10:41:30,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 45 events. 10/45 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 122 event pairs, 3 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 81. Up to 19 conditions per place. [2021-03-26 10:41:30,880 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-26 10:41:30,882 INFO L154 LiptonReduction]: Checked pairs total: 186 [2021-03-26 10:41:30,882 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:30,882 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 10:41:30,883 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 81 flow [2021-03-26 10:41:30,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:30,887 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:30,887 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:30,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:41:30,887 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:30,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:30,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1603850412, now seen corresponding path program 1 times [2021-03-26 10:41:30,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:30,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342498785] [2021-03-26 10:41:30,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:31,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:31,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:31,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342498785] [2021-03-26 10:41:31,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:31,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:31,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438992410] [2021-03-26 10:41:31,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:41:31,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:31,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:41:31,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:41:31,013 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 170 [2021-03-26 10:41:31,014 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,014 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:31,014 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 170 [2021-03-26 10:41:31,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:31,030 INFO L129 PetriNetUnfolder]: 4/43 cut-off events. [2021-03-26 10:41:31,030 INFO L130 PetriNetUnfolder]: For 32/76 co-relation queries the response was YES. [2021-03-26 10:41:31,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 43 events. 4/43 cut-off events. For 32/76 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 121 event pairs, 2 based on Foata normal form. 4/44 useless extension candidates. Maximal degree in co-relation 79. Up to 13 conditions per place. [2021-03-26 10:41:31,031 INFO L132 encePairwiseOnDemand]: 167/170 looper letters, 3 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2021-03-26 10:41:31,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 93 flow [2021-03-26 10:41:31,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:41:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:41:31,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2021-03-26 10:41:31,033 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2021-03-26 10:41:31,033 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2021-03-26 10:41:31,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2021-03-26 10:41:31,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:31,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2021-03-26 10:41:31,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,041 INFO L185 Difference]: Start difference. First operand has 32 places, 24 transitions, 81 flow. Second operand 3 states and 450 transitions. [2021-03-26 10:41:31,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 93 flow [2021-03-26 10:41:31,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 24 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:41:31,042 INFO L241 Difference]: Finished difference. Result has 34 places, 24 transitions, 89 flow [2021-03-26 10:41:31,042 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2021-03-26 10:41:31,042 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -12 predicate places. [2021-03-26 10:41:31,043 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:31,043 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 24 transitions, 89 flow [2021-03-26 10:41:31,043 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 24 transitions, 89 flow [2021-03-26 10:41:31,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 24 transitions, 89 flow [2021-03-26 10:41:31,052 INFO L129 PetriNetUnfolder]: 4/47 cut-off events. [2021-03-26 10:41:31,052 INFO L130 PetriNetUnfolder]: For 37/47 co-relation queries the response was YES. [2021-03-26 10:41:31,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 47 events. 4/47 cut-off events. For 37/47 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 149 event pairs, 1 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 90. Up to 15 conditions per place. [2021-03-26 10:41:31,054 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-26 10:41:31,056 INFO L154 LiptonReduction]: Checked pairs total: 216 [2021-03-26 10:41:31,056 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:31,056 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 10:41:31,061 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 89 flow [2021-03-26 10:41:31,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,062 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:31,062 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:31,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:41:31,062 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:31,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:31,062 INFO L82 PathProgramCache]: Analyzing trace with hash 583212867, now seen corresponding path program 1 times [2021-03-26 10:41:31,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:31,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601266067] [2021-03-26 10:41:31,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:31,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:31,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:41:31,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:31,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601266067] [2021-03-26 10:41:31,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:31,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:31,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311867146] [2021-03-26 10:41:31,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:41:31,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:31,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:41:31,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:41:31,168 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 170 [2021-03-26 10:41:31,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:31,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 170 [2021-03-26 10:41:31,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:31,276 INFO L129 PetriNetUnfolder]: 83/212 cut-off events. [2021-03-26 10:41:31,277 INFO L130 PetriNetUnfolder]: For 223/259 co-relation queries the response was YES. [2021-03-26 10:41:31,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 212 events. 83/212 cut-off events. For 223/259 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1021 event pairs, 53 based on Foata normal form. 1/200 useless extension candidates. Maximal degree in co-relation 487. Up to 129 conditions per place. [2021-03-26 10:41:31,280 INFO L132 encePairwiseOnDemand]: 166/170 looper letters, 7 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2021-03-26 10:41:31,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 115 flow [2021-03-26 10:41:31,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:41:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:41:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2021-03-26 10:41:31,282 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.803921568627451 [2021-03-26 10:41:31,283 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2021-03-26 10:41:31,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2021-03-26 10:41:31,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:31,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2021-03-26 10:41:31,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,286 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,286 INFO L185 Difference]: Start difference. First operand has 34 places, 24 transitions, 89 flow. Second operand 3 states and 410 transitions. [2021-03-26 10:41:31,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 115 flow [2021-03-26 10:41:31,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 27 transitions, 110 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 10:41:31,288 INFO L241 Difference]: Finished difference. Result has 36 places, 26 transitions, 103 flow [2021-03-26 10:41:31,288 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2021-03-26 10:41:31,289 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -10 predicate places. [2021-03-26 10:41:31,289 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:31,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 26 transitions, 103 flow [2021-03-26 10:41:31,289 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 26 transitions, 103 flow [2021-03-26 10:41:31,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 26 transitions, 103 flow [2021-03-26 10:41:31,298 INFO L129 PetriNetUnfolder]: 17/81 cut-off events. [2021-03-26 10:41:31,298 INFO L130 PetriNetUnfolder]: For 102/119 co-relation queries the response was YES. [2021-03-26 10:41:31,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 81 events. 17/81 cut-off events. For 102/119 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 341 event pairs, 5 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 183. Up to 27 conditions per place. [2021-03-26 10:41:31,299 INFO L142 LiptonReduction]: Number of co-enabled transitions 244 [2021-03-26 10:41:31,313 INFO L154 LiptonReduction]: Checked pairs total: 148 [2021-03-26 10:41:31,313 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:31,313 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-03-26 10:41:31,315 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 103 flow [2021-03-26 10:41:31,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 133.75) internal successors, (535), 4 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,316 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:31,316 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:31,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:41:31,317 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:31,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:31,320 INFO L82 PathProgramCache]: Analyzing trace with hash -2015686887, now seen corresponding path program 1 times [2021-03-26 10:41:31,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:31,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620974279] [2021-03-26 10:41:31,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:31,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:31,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:31,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:41:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:31,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620974279] [2021-03-26 10:41:31,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:31,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:41:31,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277920724] [2021-03-26 10:41:31,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:41:31,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:31,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:41:31,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:41:31,452 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 170 [2021-03-26 10:41:31,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:31,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 170 [2021-03-26 10:41:31,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:31,530 INFO L129 PetriNetUnfolder]: 80/207 cut-off events. [2021-03-26 10:41:31,530 INFO L130 PetriNetUnfolder]: For 345/367 co-relation queries the response was YES. [2021-03-26 10:41:31,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 207 events. 80/207 cut-off events. For 345/367 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 987 event pairs, 15 based on Foata normal form. 6/204 useless extension candidates. Maximal degree in co-relation 523. Up to 109 conditions per place. [2021-03-26 10:41:31,532 INFO L132 encePairwiseOnDemand]: 166/170 looper letters, 8 selfloop transitions, 4 changer transitions 0/29 dead transitions. [2021-03-26 10:41:31,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 133 flow [2021-03-26 10:41:31,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:41:31,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:41:31,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 537 transitions. [2021-03-26 10:41:31,535 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7897058823529411 [2021-03-26 10:41:31,535 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 537 transitions. [2021-03-26 10:41:31,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 537 transitions. [2021-03-26 10:41:31,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:31,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 537 transitions. [2021-03-26 10:41:31,537 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) [2021-03-26 10:41:31,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,540 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,540 INFO L185 Difference]: Start difference. First operand has 36 places, 26 transitions, 103 flow. Second operand 4 states and 537 transitions. [2021-03-26 10:41:31,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 133 flow [2021-03-26 10:41:31,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:41:31,543 INFO L241 Difference]: Finished difference. Result has 39 places, 26 transitions, 112 flow [2021-03-26 10:41:31,544 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2021-03-26 10:41:31,544 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2021-03-26 10:41:31,544 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:31,544 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 26 transitions, 112 flow [2021-03-26 10:41:31,544 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 26 transitions, 112 flow [2021-03-26 10:41:31,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 26 transitions, 112 flow [2021-03-26 10:41:31,555 INFO L129 PetriNetUnfolder]: 10/74 cut-off events. [2021-03-26 10:41:31,555 INFO L130 PetriNetUnfolder]: For 136/149 co-relation queries the response was YES. [2021-03-26 10:41:31,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 74 events. 10/74 cut-off events. For 136/149 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 313 event pairs, 5 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 169. Up to 23 conditions per place. [2021-03-26 10:41:31,556 INFO L142 LiptonReduction]: Number of co-enabled transitions 244 [2021-03-26 10:41:31,558 INFO L154 LiptonReduction]: Checked pairs total: 144 [2021-03-26 10:41:31,558 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:31,559 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-26 10:41:31,563 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 112 flow [2021-03-26 10:41:31,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:31,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:31,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:41:31,564 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:31,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:31,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1118630836, now seen corresponding path program 1 times [2021-03-26 10:41:31,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:31,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75459772] [2021-03-26 10:41:31,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:31,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:31,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:41:31,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:31,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:31,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75459772] [2021-03-26 10:41:31,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:31,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:41:31,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459411751] [2021-03-26 10:41:31,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:41:31,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:31,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:41:31,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:41:31,660 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 170 [2021-03-26 10:41:31,661 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:31,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 170 [2021-03-26 10:41:31,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:31,736 INFO L129 PetriNetUnfolder]: 68/184 cut-off events. [2021-03-26 10:41:31,736 INFO L130 PetriNetUnfolder]: For 445/468 co-relation queries the response was YES. [2021-03-26 10:41:31,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 184 events. 68/184 cut-off events. For 445/468 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 848 event pairs, 28 based on Foata normal form. 3/179 useless extension candidates. Maximal degree in co-relation 487. Up to 105 conditions per place. [2021-03-26 10:41:31,738 INFO L132 encePairwiseOnDemand]: 165/170 looper letters, 8 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2021-03-26 10:41:31,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 148 flow [2021-03-26 10:41:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:41:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:41:31,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 542 transitions. [2021-03-26 10:41:31,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7970588235294118 [2021-03-26 10:41:31,740 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 542 transitions. [2021-03-26 10:41:31,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 542 transitions. [2021-03-26 10:41:31,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:31,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 542 transitions. [2021-03-26 10:41:31,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,743 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,744 INFO L185 Difference]: Start difference. First operand has 39 places, 26 transitions, 112 flow. Second operand 4 states and 542 transitions. [2021-03-26 10:41:31,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 148 flow [2021-03-26 10:41:31,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 140 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:41:31,747 INFO L241 Difference]: Finished difference. Result has 41 places, 28 transitions, 129 flow [2021-03-26 10:41:31,747 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=41, PETRI_TRANSITIONS=28} [2021-03-26 10:41:31,747 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -5 predicate places. [2021-03-26 10:41:31,747 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:31,747 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 28 transitions, 129 flow [2021-03-26 10:41:31,748 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 28 transitions, 129 flow [2021-03-26 10:41:31,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 28 transitions, 129 flow [2021-03-26 10:41:31,758 INFO L129 PetriNetUnfolder]: 16/81 cut-off events. [2021-03-26 10:41:31,758 INFO L130 PetriNetUnfolder]: For 182/187 co-relation queries the response was YES. [2021-03-26 10:41:31,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 81 events. 16/81 cut-off events. For 182/187 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 339 event pairs, 5 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 216. Up to 25 conditions per place. [2021-03-26 10:41:31,759 INFO L142 LiptonReduction]: Number of co-enabled transitions 260 [2021-03-26 10:41:31,845 INFO L154 LiptonReduction]: Checked pairs total: 142 [2021-03-26 10:41:31,846 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:31,846 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 99 [2021-03-26 10:41:31,846 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 28 transitions, 129 flow [2021-03-26 10:41:31,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,847 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:31,847 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:31,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:41:31,847 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:31,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:31,847 INFO L82 PathProgramCache]: Analyzing trace with hash -48620086, now seen corresponding path program 1 times [2021-03-26 10:41:31,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:31,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336493821] [2021-03-26 10:41:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:31,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:31,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:31,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:41:31,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:31,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:31,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336493821] [2021-03-26 10:41:31,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:31,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:41:31,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612545300] [2021-03-26 10:41:31,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:41:31,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:31,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:41:31,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:41:31,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 170 [2021-03-26 10:41:31,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 28 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:31,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 170 [2021-03-26 10:41:31,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:31,977 INFO L129 PetriNetUnfolder]: 94/232 cut-off events. [2021-03-26 10:41:31,977 INFO L130 PetriNetUnfolder]: For 691/709 co-relation queries the response was YES. [2021-03-26 10:41:31,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 232 events. 94/232 cut-off events. For 691/709 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1128 event pairs, 20 based on Foata normal form. 7/227 useless extension candidates. Maximal degree in co-relation 692. Up to 127 conditions per place. [2021-03-26 10:41:31,979 INFO L132 encePairwiseOnDemand]: 163/170 looper letters, 8 selfloop transitions, 11 changer transitions 0/36 dead transitions. [2021-03-26 10:41:31,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 36 transitions, 201 flow [2021-03-26 10:41:31,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:41:31,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:41:31,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 706 transitions. [2021-03-26 10:41:31,982 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8305882352941176 [2021-03-26 10:41:31,982 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 706 transitions. [2021-03-26 10:41:31,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 706 transitions. [2021-03-26 10:41:31,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:31,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 706 transitions. [2021-03-26 10:41:31,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.2) internal successors, (706), 5 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,986 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:31,986 INFO L185 Difference]: Start difference. First operand has 41 places, 28 transitions, 129 flow. Second operand 5 states and 706 transitions. [2021-03-26 10:41:31,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 36 transitions, 201 flow [2021-03-26 10:41:31,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 192 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:41:31,988 INFO L241 Difference]: Finished difference. Result has 45 places, 35 transitions, 197 flow [2021-03-26 10:41:31,988 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=197, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2021-03-26 10:41:31,988 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2021-03-26 10:41:31,988 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:31,988 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 35 transitions, 197 flow [2021-03-26 10:41:31,988 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 35 transitions, 197 flow [2021-03-26 10:41:31,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 35 transitions, 197 flow [2021-03-26 10:41:32,012 INFO L129 PetriNetUnfolder]: 67/197 cut-off events. [2021-03-26 10:41:32,013 INFO L130 PetriNetUnfolder]: For 874/902 co-relation queries the response was YES. [2021-03-26 10:41:32,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 197 events. 67/197 cut-off events. For 874/902 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1066 event pairs, 13 based on Foata normal form. 4/185 useless extension candidates. Maximal degree in co-relation 658. Up to 74 conditions per place. [2021-03-26 10:41:32,015 INFO L142 LiptonReduction]: Number of co-enabled transitions 326 [2021-03-26 10:41:32,022 INFO L154 LiptonReduction]: Checked pairs total: 95 [2021-03-26 10:41:32,022 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:32,022 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-26 10:41:32,023 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 197 flow [2021-03-26 10:41:32,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,023 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:32,023 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:32,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:41:32,023 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:32,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:32,024 INFO L82 PathProgramCache]: Analyzing trace with hash -3772054, now seen corresponding path program 2 times [2021-03-26 10:41:32,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:32,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815550868] [2021-03-26 10:41:32,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:32,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:32,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:32,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 10:41:32,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:32,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815550868] [2021-03-26 10:41:32,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:32,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:41:32,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856732213] [2021-03-26 10:41:32,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:41:32,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:32,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:41:32,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:41:32,105 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 170 [2021-03-26 10:41:32,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:32,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 170 [2021-03-26 10:41:32,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:32,170 INFO L129 PetriNetUnfolder]: 75/207 cut-off events. [2021-03-26 10:41:32,170 INFO L130 PetriNetUnfolder]: For 1028/1055 co-relation queries the response was YES. [2021-03-26 10:41:32,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 207 events. 75/207 cut-off events. For 1028/1055 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1043 event pairs, 18 based on Foata normal form. 19/216 useless extension candidates. Maximal degree in co-relation 728. Up to 100 conditions per place. [2021-03-26 10:41:32,173 INFO L132 encePairwiseOnDemand]: 165/170 looper letters, 11 selfloop transitions, 10 changer transitions 0/38 dead transitions. [2021-03-26 10:41:32,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 38 transitions, 242 flow [2021-03-26 10:41:32,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:41:32,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:41:32,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 564 transitions. [2021-03-26 10:41:32,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8294117647058824 [2021-03-26 10:41:32,176 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 564 transitions. [2021-03-26 10:41:32,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 564 transitions. [2021-03-26 10:41:32,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:32,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 564 transitions. [2021-03-26 10:41:32,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,179 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,180 INFO L185 Difference]: Start difference. First operand has 45 places, 35 transitions, 197 flow. Second operand 4 states and 564 transitions. [2021-03-26 10:41:32,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 38 transitions, 242 flow [2021-03-26 10:41:32,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 237 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 10:41:32,183 INFO L241 Difference]: Finished difference. Result has 48 places, 36 transitions, 220 flow [2021-03-26 10:41:32,184 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=220, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2021-03-26 10:41:32,184 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2021-03-26 10:41:32,184 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:32,184 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 36 transitions, 220 flow [2021-03-26 10:41:32,184 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 36 transitions, 220 flow [2021-03-26 10:41:32,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 36 transitions, 220 flow [2021-03-26 10:41:32,209 INFO L129 PetriNetUnfolder]: 53/175 cut-off events. [2021-03-26 10:41:32,209 INFO L130 PetriNetUnfolder]: For 848/869 co-relation queries the response was YES. [2021-03-26 10:41:32,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 649 conditions, 175 events. 53/175 cut-off events. For 848/869 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 939 event pairs, 14 based on Foata normal form. 3/166 useless extension candidates. Maximal degree in co-relation 629. Up to 63 conditions per place. [2021-03-26 10:41:32,212 INFO L142 LiptonReduction]: Number of co-enabled transitions 334 [2021-03-26 10:41:32,219 INFO L154 LiptonReduction]: Checked pairs total: 126 [2021-03-26 10:41:32,220 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:32,220 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-26 10:41:32,220 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 220 flow [2021-03-26 10:41:32,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:32,221 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:32,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:41:32,221 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:32,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:32,221 INFO L82 PathProgramCache]: Analyzing trace with hash -4984619, now seen corresponding path program 1 times [2021-03-26 10:41:32,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:32,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365858298] [2021-03-26 10:41:32,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:32,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:32,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:32,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:32,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365858298] [2021-03-26 10:41:32,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:32,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:41:32,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444994276] [2021-03-26 10:41:32,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:41:32,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:32,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:41:32,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:41:32,271 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 170 [2021-03-26 10:41:32,271 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:32,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 170 [2021-03-26 10:41:32,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:32,310 INFO L129 PetriNetUnfolder]: 57/221 cut-off events. [2021-03-26 10:41:32,310 INFO L130 PetriNetUnfolder]: For 1501/1549 co-relation queries the response was YES. [2021-03-26 10:41:32,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 807 conditions, 221 events. 57/221 cut-off events. For 1501/1549 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1365 event pairs, 9 based on Foata normal form. 16/224 useless extension candidates. Maximal degree in co-relation 785. Up to 82 conditions per place. [2021-03-26 10:41:32,312 INFO L132 encePairwiseOnDemand]: 167/170 looper letters, 3 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2021-03-26 10:41:32,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 36 transitions, 232 flow [2021-03-26 10:41:32,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:41:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:41:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2021-03-26 10:41:32,315 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-03-26 10:41:32,315 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 459 transitions. [2021-03-26 10:41:32,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 459 transitions. [2021-03-26 10:41:32,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:32,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 459 transitions. [2021-03-26 10:41:32,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,317 INFO L185 Difference]: Start difference. First operand has 48 places, 36 transitions, 220 flow. Second operand 3 states and 459 transitions. [2021-03-26 10:41:32,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 36 transitions, 232 flow [2021-03-26 10:41:32,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 36 transitions, 214 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-26 10:41:32,321 INFO L241 Difference]: Finished difference. Result has 48 places, 36 transitions, 213 flow [2021-03-26 10:41:32,322 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2021-03-26 10:41:32,322 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2021-03-26 10:41:32,322 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:32,322 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 36 transitions, 213 flow [2021-03-26 10:41:32,322 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 36 transitions, 213 flow [2021-03-26 10:41:32,323 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 36 transitions, 213 flow [2021-03-26 10:41:32,379 INFO L129 PetriNetUnfolder]: 57/207 cut-off events. [2021-03-26 10:41:32,379 INFO L130 PetriNetUnfolder]: For 742/765 co-relation queries the response was YES. [2021-03-26 10:41:32,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 207 events. 57/207 cut-off events. For 742/765 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1287 event pairs, 10 based on Foata normal form. 4/194 useless extension candidates. Maximal degree in co-relation 672. Up to 84 conditions per place. [2021-03-26 10:41:32,382 INFO L142 LiptonReduction]: Number of co-enabled transitions 334 [2021-03-26 10:41:32,392 INFO L154 LiptonReduction]: Checked pairs total: 141 [2021-03-26 10:41:32,393 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:32,393 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-26 10:41:32,393 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 213 flow [2021-03-26 10:41:32,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,394 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:32,394 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:32,394 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:41:32,394 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:32,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:32,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1223311571, now seen corresponding path program 1 times [2021-03-26 10:41:32,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:32,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095490214] [2021-03-26 10:41:32,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:32,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:32,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:32,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:41:32,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:32,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:32,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095490214] [2021-03-26 10:41:32,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:32,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:41:32,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683413614] [2021-03-26 10:41:32,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:41:32,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:32,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:41:32,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:41:32,505 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 170 [2021-03-26 10:41:32,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:32,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 170 [2021-03-26 10:41:32,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:32,607 INFO L129 PetriNetUnfolder]: 76/246 cut-off events. [2021-03-26 10:41:32,608 INFO L130 PetriNetUnfolder]: For 1058/1123 co-relation queries the response was YES. [2021-03-26 10:41:32,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 972 conditions, 246 events. 76/246 cut-off events. For 1058/1123 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1440 event pairs, 6 based on Foata normal form. 18/251 useless extension candidates. Maximal degree in co-relation 951. Up to 140 conditions per place. [2021-03-26 10:41:32,610 INFO L132 encePairwiseOnDemand]: 163/170 looper letters, 17 selfloop transitions, 12 changer transitions 0/46 dead transitions. [2021-03-26 10:41:32,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 327 flow [2021-03-26 10:41:32,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:41:32,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:41:32,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2021-03-26 10:41:32,613 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7494117647058823 [2021-03-26 10:41:32,613 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2021-03-26 10:41:32,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2021-03-26 10:41:32,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:32,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2021-03-26 10:41:32,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,618 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,618 INFO L185 Difference]: Start difference. First operand has 48 places, 36 transitions, 213 flow. Second operand 5 states and 637 transitions. [2021-03-26 10:41:32,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 46 transitions, 327 flow [2021-03-26 10:41:32,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 322 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 10:41:32,621 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 296 flow [2021-03-26 10:41:32,621 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=296, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-03-26 10:41:32,621 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 7 predicate places. [2021-03-26 10:41:32,622 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:32,622 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 43 transitions, 296 flow [2021-03-26 10:41:32,622 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 43 transitions, 296 flow [2021-03-26 10:41:32,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 296 flow [2021-03-26 10:41:32,658 INFO L129 PetriNetUnfolder]: 65/234 cut-off events. [2021-03-26 10:41:32,659 INFO L130 PetriNetUnfolder]: For 1012/1040 co-relation queries the response was YES. [2021-03-26 10:41:32,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 896 conditions, 234 events. 65/234 cut-off events. For 1012/1040 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1459 event pairs, 9 based on Foata normal form. 8/225 useless extension candidates. Maximal degree in co-relation 874. Up to 93 conditions per place. [2021-03-26 10:41:32,662 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-26 10:41:32,676 INFO L154 LiptonReduction]: Checked pairs total: 305 [2021-03-26 10:41:32,676 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:32,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-26 10:41:32,680 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 296 flow [2021-03-26 10:41:32,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,680 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:32,680 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:32,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 10:41:32,680 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:32,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:32,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1196480751, now seen corresponding path program 2 times [2021-03-26 10:41:32,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:32,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673165738] [2021-03-26 10:41:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:32,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:32,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:32,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:41:32,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:41:32,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:32,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-26 10:41:32,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:32,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673165738] [2021-03-26 10:41:32,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:32,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:41:32,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957051364] [2021-03-26 10:41:32,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:41:32,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:32,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:41:32,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:41:32,831 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 170 [2021-03-26 10:41:32,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 296 flow. Second operand has 7 states, 7 states have (on average 127.85714285714286) internal successors, (895), 7 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:32,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 170 [2021-03-26 10:41:32,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:32,967 INFO L129 PetriNetUnfolder]: 77/261 cut-off events. [2021-03-26 10:41:32,968 INFO L130 PetriNetUnfolder]: For 1373/1455 co-relation queries the response was YES. [2021-03-26 10:41:32,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 261 events. 77/261 cut-off events. For 1373/1455 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1595 event pairs, 1 based on Foata normal form. 41/289 useless extension candidates. Maximal degree in co-relation 1107. Up to 123 conditions per place. [2021-03-26 10:41:32,970 INFO L132 encePairwiseOnDemand]: 164/170 looper letters, 15 selfloop transitions, 20 changer transitions 0/52 dead transitions. [2021-03-26 10:41:32,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 433 flow [2021-03-26 10:41:32,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:41:32,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:41:32,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 652 transitions. [2021-03-26 10:41:32,972 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7670588235294118 [2021-03-26 10:41:32,972 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 652 transitions. [2021-03-26 10:41:32,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 652 transitions. [2021-03-26 10:41:32,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:32,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 652 transitions. [2021-03-26 10:41:32,974 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) [2021-03-26 10:41:32,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,976 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 170.0) internal successors, (1020), 6 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:32,976 INFO L185 Difference]: Start difference. First operand has 53 places, 43 transitions, 296 flow. Second operand 5 states and 652 transitions. [2021-03-26 10:41:32,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 433 flow [2021-03-26 10:41:32,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 52 transitions, 421 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 10:41:32,980 INFO L241 Difference]: Finished difference. Result has 57 places, 49 transitions, 392 flow [2021-03-26 10:41:32,981 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=392, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2021-03-26 10:41:32,981 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 11 predicate places. [2021-03-26 10:41:32,981 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:32,981 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 49 transitions, 392 flow [2021-03-26 10:41:32,981 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 49 transitions, 392 flow [2021-03-26 10:41:32,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 49 transitions, 392 flow [2021-03-26 10:41:33,008 INFO L129 PetriNetUnfolder]: 73/240 cut-off events. [2021-03-26 10:41:33,008 INFO L130 PetriNetUnfolder]: For 1163/1189 co-relation queries the response was YES. [2021-03-26 10:41:33,009 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 240 events. 73/240 cut-off events. For 1163/1189 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1425 event pairs, 10 based on Foata normal form. 6/229 useless extension candidates. Maximal degree in co-relation 1014. Up to 97 conditions per place. [2021-03-26 10:41:33,011 INFO L142 LiptonReduction]: Number of co-enabled transitions 432 [2021-03-26 10:41:33,229 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-26 10:41:33,705 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-26 10:41:33,863 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-26 10:41:33,890 INFO L154 LiptonReduction]: Checked pairs total: 693 [2021-03-26 10:41:33,890 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:41:33,890 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 909 [2021-03-26 10:41:33,890 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 400 flow [2021-03-26 10:41:33,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 127.85714285714286) internal successors, (895), 7 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:33,891 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:33,891 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:33,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 10:41:33,891 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:33,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:33,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1224464771, now seen corresponding path program 3 times [2021-03-26 10:41:33,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:33,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391098478] [2021-03-26 10:41:33,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:33,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:33,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:33,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:33,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:33,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:33,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:33,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:33,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:41:33,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:33,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:33,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391098478] [2021-03-26 10:41:33,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:33,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:41:33,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449757626] [2021-03-26 10:41:33,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:41:33,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:33,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:41:33,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:41:33,989 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 171 [2021-03-26 10:41:33,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 400 flow. Second operand has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:33,990 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:33,990 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 171 [2021-03-26 10:41:33,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:34,102 INFO L129 PetriNetUnfolder]: 81/263 cut-off events. [2021-03-26 10:41:34,103 INFO L130 PetriNetUnfolder]: For 1673/1786 co-relation queries the response was YES. [2021-03-26 10:41:34,104 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1313 conditions, 263 events. 81/263 cut-off events. For 1673/1786 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1593 event pairs, 6 based on Foata normal form. 29/272 useless extension candidates. Maximal degree in co-relation 1287. Up to 151 conditions per place. [2021-03-26 10:41:34,105 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 24 selfloop transitions, 12 changer transitions 0/53 dead transitions. [2021-03-26 10:41:34,105 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 53 transitions, 504 flow [2021-03-26 10:41:34,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:41:34,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:41:34,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2021-03-26 10:41:34,107 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7450292397660818 [2021-03-26 10:41:34,107 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2021-03-26 10:41:34,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2021-03-26 10:41:34,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:34,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2021-03-26 10:41:34,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,110 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,111 INFO L185 Difference]: Start difference. First operand has 57 places, 49 transitions, 400 flow. Second operand 5 states and 637 transitions. [2021-03-26 10:41:34,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 53 transitions, 504 flow [2021-03-26 10:41:34,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 53 transitions, 498 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-03-26 10:41:34,115 INFO L241 Difference]: Finished difference. Result has 62 places, 52 transitions, 455 flow [2021-03-26 10:41:34,115 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=455, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2021-03-26 10:41:34,115 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2021-03-26 10:41:34,115 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:34,116 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 52 transitions, 455 flow [2021-03-26 10:41:34,116 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 52 transitions, 455 flow [2021-03-26 10:41:34,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 52 transitions, 455 flow [2021-03-26 10:41:34,147 INFO L129 PetriNetUnfolder]: 78/269 cut-off events. [2021-03-26 10:41:34,148 INFO L130 PetriNetUnfolder]: For 1593/1652 co-relation queries the response was YES. [2021-03-26 10:41:34,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 269 events. 78/269 cut-off events. For 1593/1652 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1723 event pairs, 3 based on Foata normal form. 25/280 useless extension candidates. Maximal degree in co-relation 1186. Up to 100 conditions per place. [2021-03-26 10:41:34,151 INFO L142 LiptonReduction]: Number of co-enabled transitions 468 [2021-03-26 10:41:34,160 INFO L154 LiptonReduction]: Checked pairs total: 454 [2021-03-26 10:41:34,160 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:34,160 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-26 10:41:34,161 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 455 flow [2021-03-26 10:41:34,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,161 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:34,161 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:34,161 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 10:41:34,161 INFO L428 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:34,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:34,162 INFO L82 PathProgramCache]: Analyzing trace with hash -939551905, now seen corresponding path program 4 times [2021-03-26 10:41:34,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:34,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129537900] [2021-03-26 10:41:34,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:34,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:34,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:34,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:41:34,271 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:41:34,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:34,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129537900] [2021-03-26 10:41:34,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:34,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:41:34,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60427659] [2021-03-26 10:41:34,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:41:34,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:34,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:41:34,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:41:34,284 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 171 [2021-03-26 10:41:34,284 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 455 flow. Second operand has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:34,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 171 [2021-03-26 10:41:34,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:34,389 INFO L129 PetriNetUnfolder]: 82/268 cut-off events. [2021-03-26 10:41:34,389 INFO L130 PetriNetUnfolder]: For 2217/2344 co-relation queries the response was YES. [2021-03-26 10:41:34,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 268 events. 82/268 cut-off events. For 2217/2344 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1645 event pairs, 6 based on Foata normal form. 28/280 useless extension candidates. Maximal degree in co-relation 1392. Up to 148 conditions per place. [2021-03-26 10:41:34,391 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 25 selfloop transitions, 12 changer transitions 0/54 dead transitions. [2021-03-26 10:41:34,391 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 553 flow [2021-03-26 10:41:34,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:41:34,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:41:34,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 652 transitions. [2021-03-26 10:41:34,394 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7625730994152047 [2021-03-26 10:41:34,394 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 652 transitions. [2021-03-26 10:41:34,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 652 transitions. [2021-03-26 10:41:34,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:34,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 652 transitions. [2021-03-26 10:41:34,396 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) [2021-03-26 10:41:34,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,397 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,398 INFO L185 Difference]: Start difference. First operand has 62 places, 52 transitions, 455 flow. Second operand 5 states and 652 transitions. [2021-03-26 10:41:34,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 553 flow [2021-03-26 10:41:34,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 54 transitions, 531 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-26 10:41:34,403 INFO L241 Difference]: Finished difference. Result has 65 places, 53 transitions, 480 flow [2021-03-26 10:41:34,404 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=480, PETRI_PLACES=65, PETRI_TRANSITIONS=53} [2021-03-26 10:41:34,404 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 19 predicate places. [2021-03-26 10:41:34,404 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:34,404 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 53 transitions, 480 flow [2021-03-26 10:41:34,404 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 53 transitions, 480 flow [2021-03-26 10:41:34,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 53 transitions, 480 flow [2021-03-26 10:41:34,437 INFO L129 PetriNetUnfolder]: 79/272 cut-off events. [2021-03-26 10:41:34,437 INFO L130 PetriNetUnfolder]: For 1824/1887 co-relation queries the response was YES. [2021-03-26 10:41:34,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1275 conditions, 272 events. 79/272 cut-off events. For 1824/1887 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1736 event pairs, 8 based on Foata normal form. 21/276 useless extension candidates. Maximal degree in co-relation 1247. Up to 103 conditions per place. [2021-03-26 10:41:34,441 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-26 10:41:34,451 INFO L154 LiptonReduction]: Checked pairs total: 472 [2021-03-26 10:41:34,451 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:34,451 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-26 10:41:34,452 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 53 transitions, 480 flow [2021-03-26 10:41:34,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,452 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:34,452 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:34,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 10:41:34,453 INFO L428 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:34,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:34,453 INFO L82 PathProgramCache]: Analyzing trace with hash -44928175, now seen corresponding path program 5 times [2021-03-26 10:41:34,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:34,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685444882] [2021-03-26 10:41:34,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:34,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:41:34,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 10:41:34,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-26 10:41:34,574 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.6 percent of original size [2021-03-26 10:41:34,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-26 10:41:34,597 INFO L142 QuantifierPusher]: treesize reduction 4, result has 86.2 percent of original size [2021-03-26 10:41:34,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 10:41:34,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:34,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685444882] [2021-03-26 10:41:34,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:34,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:41:34,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174226861] [2021-03-26 10:41:34,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:41:34,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:34,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:41:34,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:41:34,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 171 [2021-03-26 10:41:34,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 480 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) [2021-03-26 10:41:34,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:34,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 171 [2021-03-26 10:41:34,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:34,757 INFO L129 PetriNetUnfolder]: 95/316 cut-off events. [2021-03-26 10:41:34,757 INFO L130 PetriNetUnfolder]: For 2606/2720 co-relation queries the response was YES. [2021-03-26 10:41:34,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1669 conditions, 316 events. 95/316 cut-off events. For 2606/2720 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2062 event pairs, 1 based on Foata normal form. 31/329 useless extension candidates. Maximal degree in co-relation 1639. Up to 154 conditions per place. [2021-03-26 10:41:34,759 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 26 selfloop transitions, 21 changer transitions 0/64 dead transitions. [2021-03-26 10:41:34,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 64 transitions, 684 flow [2021-03-26 10:41:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:41:34,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:41:34,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 638 transitions. [2021-03-26 10:41:34,762 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7461988304093568 [2021-03-26 10:41:34,762 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 638 transitions. [2021-03-26 10:41:34,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 638 transitions. [2021-03-26 10:41:34,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:34,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 638 transitions. [2021-03-26 10:41:34,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.6) internal successors, (638), 5 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,765 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,765 INFO L185 Difference]: Start difference. First operand has 65 places, 53 transitions, 480 flow. Second operand 5 states and 638 transitions. [2021-03-26 10:41:34,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 64 transitions, 684 flow [2021-03-26 10:41:34,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 663 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 10:41:34,771 INFO L241 Difference]: Finished difference. Result has 67 places, 60 transitions, 607 flow [2021-03-26 10:41:34,771 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=607, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2021-03-26 10:41:34,772 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 21 predicate places. [2021-03-26 10:41:34,772 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:34,772 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 60 transitions, 607 flow [2021-03-26 10:41:34,772 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 60 transitions, 607 flow [2021-03-26 10:41:34,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 60 transitions, 607 flow [2021-03-26 10:41:34,811 INFO L129 PetriNetUnfolder]: 95/315 cut-off events. [2021-03-26 10:41:34,812 INFO L130 PetriNetUnfolder]: For 2287/2342 co-relation queries the response was YES. [2021-03-26 10:41:34,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1610 conditions, 315 events. 95/315 cut-off events. For 2287/2342 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2048 event pairs, 7 based on Foata normal form. 22/318 useless extension candidates. Maximal degree in co-relation 1581. Up to 122 conditions per place. [2021-03-26 10:41:34,816 INFO L142 LiptonReduction]: Number of co-enabled transitions 534 [2021-03-26 10:41:34,835 INFO L154 LiptonReduction]: Checked pairs total: 597 [2021-03-26 10:41:34,835 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:34,835 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-03-26 10:41:34,838 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 607 flow [2021-03-26 10:41:34,839 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) [2021-03-26 10:41:34,839 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:34,839 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:34,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 10:41:34,839 INFO L428 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:34,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:34,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1073494943, now seen corresponding path program 6 times [2021-03-26 10:41:34,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:34,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374838101] [2021-03-26 10:41:34,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:34,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 10:41:34,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:34,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 10:41:34,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:41:34,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:34,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 10:41:34,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:34,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374838101] [2021-03-26 10:41:34,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:34,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:41:34,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793182898] [2021-03-26 10:41:34,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 10:41:34,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:34,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 10:41:34,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-26 10:41:34,948 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 171 [2021-03-26 10:41:34,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 607 flow. Second operand has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:34,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:34,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 171 [2021-03-26 10:41:34,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:35,103 INFO L129 PetriNetUnfolder]: 87/314 cut-off events. [2021-03-26 10:41:35,103 INFO L130 PetriNetUnfolder]: For 2729/2858 co-relation queries the response was YES. [2021-03-26 10:41:35,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1731 conditions, 314 events. 87/314 cut-off events. For 2729/2858 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2129 event pairs, 4 based on Foata normal form. 57/353 useless extension candidates. Maximal degree in co-relation 1700. Up to 117 conditions per place. [2021-03-26 10:41:35,106 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 12 selfloop transitions, 30 changer transitions 3/62 dead transitions. [2021-03-26 10:41:35,106 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 62 transitions, 721 flow [2021-03-26 10:41:35,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:41:35,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:41:35,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 894 transitions. [2021-03-26 10:41:35,109 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7468671679197995 [2021-03-26 10:41:35,109 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 894 transitions. [2021-03-26 10:41:35,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 894 transitions. [2021-03-26 10:41:35,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:35,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 894 transitions. [2021-03-26 10:41:35,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.71428571428571) internal successors, (894), 7 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:35,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:35,114 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 171.0) internal successors, (1368), 8 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:35,114 INFO L185 Difference]: Start difference. First operand has 67 places, 60 transitions, 607 flow. Second operand 7 states and 894 transitions. [2021-03-26 10:41:35,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 62 transitions, 721 flow [2021-03-26 10:41:35,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 62 transitions, 693 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-26 10:41:35,122 INFO L241 Difference]: Finished difference. Result has 71 places, 58 transitions, 642 flow [2021-03-26 10:41:35,122 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=642, PETRI_PLACES=71, PETRI_TRANSITIONS=58} [2021-03-26 10:41:35,122 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2021-03-26 10:41:35,122 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:35,122 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 58 transitions, 642 flow [2021-03-26 10:41:35,122 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 58 transitions, 642 flow [2021-03-26 10:41:35,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 58 transitions, 642 flow [2021-03-26 10:41:35,160 INFO L129 PetriNetUnfolder]: 82/308 cut-off events. [2021-03-26 10:41:35,160 INFO L130 PetriNetUnfolder]: For 2511/2570 co-relation queries the response was YES. [2021-03-26 10:41:35,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1615 conditions, 308 events. 82/308 cut-off events. For 2511/2570 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2106 event pairs, 1 based on Foata normal form. 23/311 useless extension candidates. Maximal degree in co-relation 1585. Up to 110 conditions per place. [2021-03-26 10:41:35,164 INFO L142 LiptonReduction]: Number of co-enabled transitions 518 [2021-03-26 10:41:35,178 INFO L154 LiptonReduction]: Checked pairs total: 496 [2021-03-26 10:41:35,178 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:35,178 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 56 [2021-03-26 10:41:35,178 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 58 transitions, 642 flow [2021-03-26 10:41:35,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:35,179 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:35,179 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:35,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 10:41:35,179 INFO L428 AbstractCegarLoop]: === Iteration 17 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:35,180 INFO L82 PathProgramCache]: Analyzing trace with hash 104948325, now seen corresponding path program 1 times [2021-03-26 10:41:35,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:35,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385832639] [2021-03-26 10:41:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:35,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:35,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:35,228 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-26 10:41:35,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:35,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:35,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:35,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385832639] [2021-03-26 10:41:35,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:35,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:41:35,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500802205] [2021-03-26 10:41:35,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:41:35,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:35,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:41:35,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:41:35,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 171 [2021-03-26 10:41:35,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 58 transitions, 642 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) [2021-03-26 10:41:35,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:35,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 171 [2021-03-26 10:41:35,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:35,376 INFO L129 PetriNetUnfolder]: 413/906 cut-off events. [2021-03-26 10:41:35,376 INFO L130 PetriNetUnfolder]: For 6107/6567 co-relation queries the response was YES. [2021-03-26 10:41:35,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3648 conditions, 906 events. 413/906 cut-off events. For 6107/6567 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 6731 event pairs, 150 based on Foata normal form. 206/1012 useless extension candidates. Maximal degree in co-relation 3616. Up to 540 conditions per place. [2021-03-26 10:41:35,382 INFO L132 encePairwiseOnDemand]: 165/171 looper letters, 14 selfloop transitions, 8 changer transitions 7/68 dead transitions. [2021-03-26 10:41:35,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 68 transitions, 708 flow [2021-03-26 10:41:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:41:35,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:41:35,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 723 transitions. [2021-03-26 10:41:35,417 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8456140350877193 [2021-03-26 10:41:35,417 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 723 transitions. [2021-03-26 10:41:35,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 723 transitions. [2021-03-26 10:41:35,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:35,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 723 transitions. [2021-03-26 10:41:35,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.6) internal successors, (723), 5 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:35,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:35,421 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:35,421 INFO L185 Difference]: Start difference. First operand has 71 places, 58 transitions, 642 flow. Second operand 5 states and 723 transitions. [2021-03-26 10:41:35,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 68 transitions, 708 flow [2021-03-26 10:41:35,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 654 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-26 10:41:35,430 INFO L241 Difference]: Finished difference. Result has 74 places, 58 transitions, 608 flow [2021-03-26 10:41:35,430 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=608, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2021-03-26 10:41:35,430 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 28 predicate places. [2021-03-26 10:41:35,431 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:35,431 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 58 transitions, 608 flow [2021-03-26 10:41:35,431 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 58 transitions, 608 flow [2021-03-26 10:41:35,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 58 transitions, 608 flow [2021-03-26 10:41:35,477 INFO L129 PetriNetUnfolder]: 184/435 cut-off events. [2021-03-26 10:41:35,477 INFO L130 PetriNetUnfolder]: For 2882/3012 co-relation queries the response was YES. [2021-03-26 10:41:35,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1998 conditions, 435 events. 184/435 cut-off events. For 2882/3012 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 2773 event pairs, 63 based on Foata normal form. 23/417 useless extension candidates. Maximal degree in co-relation 1965. Up to 270 conditions per place. [2021-03-26 10:41:35,483 INFO L142 LiptonReduction]: Number of co-enabled transitions 384 [2021-03-26 10:41:36,183 WARN L205 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 182 [2021-03-26 10:41:36,393 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-03-26 10:41:37,669 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 337 DAG size of output: 258 [2021-03-26 10:41:38,158 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-26 10:41:38,796 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-03-26 10:41:39,051 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85 [2021-03-26 10:41:39,298 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-03-26 10:41:39,695 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85 [2021-03-26 10:41:39,761 INFO L154 LiptonReduction]: Checked pairs total: 90 [2021-03-26 10:41:39,761 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 10:41:39,762 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4331 [2021-03-26 10:41:39,762 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 57 transitions, 662 flow [2021-03-26 10:41:39,763 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) [2021-03-26 10:41:39,763 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:39,763 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:39,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 10:41:39,763 INFO L428 AbstractCegarLoop]: === Iteration 18 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:39,764 INFO L82 PathProgramCache]: Analyzing trace with hash 557579654, now seen corresponding path program 1 times [2021-03-26 10:41:39,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:39,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342840488] [2021-03-26 10:41:39,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:39,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:39,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:39,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:39,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:39,813 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-26 10:41:39,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:39,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:39,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:39,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:39,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342840488] [2021-03-26 10:41:39,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:39,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:41:39,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041533023] [2021-03-26 10:41:39,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:41:39,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:39,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:41:39,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:41:39,826 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 179 [2021-03-26 10:41:39,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 57 transitions, 662 flow. Second operand has 5 states, 5 states have (on average 148.8) internal successors, (744), 5 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:39,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 179 [2021-03-26 10:41:39,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:39,925 INFO L129 PetriNetUnfolder]: 108/319 cut-off events. [2021-03-26 10:41:39,926 INFO L130 PetriNetUnfolder]: For 2583/3142 co-relation queries the response was YES. [2021-03-26 10:41:39,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 319 events. 108/319 cut-off events. For 2583/3142 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2084 event pairs, 11 based on Foata normal form. 189/489 useless extension candidates. Maximal degree in co-relation 1481. Up to 217 conditions per place. [2021-03-26 10:41:39,929 INFO L132 encePairwiseOnDemand]: 173/179 looper letters, 6 selfloop transitions, 13 changer transitions 9/57 dead transitions. [2021-03-26 10:41:39,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 57 transitions, 620 flow [2021-03-26 10:41:39,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:41:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:41:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1061 transitions. [2021-03-26 10:41:39,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8467677573822825 [2021-03-26 10:41:39,932 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1061 transitions. [2021-03-26 10:41:39,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1061 transitions. [2021-03-26 10:41:39,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:39,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1061 transitions. [2021-03-26 10:41:39,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.57142857142858) internal successors, (1061), 7 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,950 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,950 INFO L185 Difference]: Start difference. First operand has 73 places, 57 transitions, 662 flow. Second operand 7 states and 1061 transitions. [2021-03-26 10:41:39,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 57 transitions, 620 flow [2021-03-26 10:41:39,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 57 transitions, 559 flow, removed 12 selfloop flow, removed 8 redundant places. [2021-03-26 10:41:39,956 INFO L241 Difference]: Finished difference. Result has 74 places, 48 transitions, 484 flow [2021-03-26 10:41:39,956 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=484, PETRI_PLACES=74, PETRI_TRANSITIONS=48} [2021-03-26 10:41:39,957 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 28 predicate places. [2021-03-26 10:41:39,957 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:39,957 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 48 transitions, 484 flow [2021-03-26 10:41:39,957 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 48 transitions, 484 flow [2021-03-26 10:41:39,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 48 transitions, 484 flow [2021-03-26 10:41:39,990 INFO L129 PetriNetUnfolder]: 74/272 cut-off events. [2021-03-26 10:41:39,990 INFO L130 PetriNetUnfolder]: For 1784/1920 co-relation queries the response was YES. [2021-03-26 10:41:39,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 272 events. 74/272 cut-off events. For 1784/1920 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 1842 event pairs, 10 based on Foata normal form. 9/272 useless extension candidates. Maximal degree in co-relation 1359. Up to 177 conditions per place. [2021-03-26 10:41:39,994 INFO L142 LiptonReduction]: Number of co-enabled transitions 314 [2021-03-26 10:41:39,998 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:41:39,998 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:41:39,998 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-26 10:41:39,999 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 48 transitions, 484 flow [2021-03-26 10:41:39,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 148.8) internal successors, (744), 5 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:39,999 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:39,999 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:40,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 10:41:40,000 INFO L428 AbstractCegarLoop]: === Iteration 19 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:40,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:40,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1180994187, now seen corresponding path program 1 times [2021-03-26 10:41:40,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:40,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575609858] [2021-03-26 10:41:40,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:41:40,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:41:40,058 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-26 10:41:40,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 10:41:40,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:41:40,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:41:40,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:41:40,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575609858] [2021-03-26 10:41:40,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:41:40,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:41:40,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719103008] [2021-03-26 10:41:40,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:41:40,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:41:40,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:41:40,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:41:40,072 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 179 [2021-03-26 10:41:40,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 48 transitions, 484 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,073 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:41:40,073 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 179 [2021-03-26 10:41:40,073 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:41:40,168 INFO L129 PetriNetUnfolder]: 51/222 cut-off events. [2021-03-26 10:41:40,168 INFO L130 PetriNetUnfolder]: For 2058/2561 co-relation queries the response was YES. [2021-03-26 10:41:40,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 222 events. 51/222 cut-off events. For 2058/2561 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1501 event pairs, 0 based on Foata normal form. 186/401 useless extension candidates. Maximal degree in co-relation 1167. Up to 159 conditions per place. [2021-03-26 10:41:40,170 INFO L132 encePairwiseOnDemand]: 173/179 looper letters, 2 selfloop transitions, 17 changer transitions 17/50 dead transitions. [2021-03-26 10:41:40,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 50 transitions, 525 flow [2021-03-26 10:41:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 10:41:40,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 10:41:40,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1356 transitions. [2021-03-26 10:41:40,173 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8417132216014898 [2021-03-26 10:41:40,174 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1356 transitions. [2021-03-26 10:41:40,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1356 transitions. [2021-03-26 10:41:40,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:41:40,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1356 transitions. [2021-03-26 10:41:40,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 150.66666666666666) internal successors, (1356), 9 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 179.0) internal successors, (1790), 10 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,179 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 179.0) internal successors, (1790), 10 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:40,179 INFO L185 Difference]: Start difference. First operand has 74 places, 48 transitions, 484 flow. Second operand 9 states and 1356 transitions. [2021-03-26 10:41:40,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 50 transitions, 525 flow [2021-03-26 10:41:40,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 50 transitions, 447 flow, removed 26 selfloop flow, removed 6 redundant places. [2021-03-26 10:41:40,187 INFO L241 Difference]: Finished difference. Result has 79 places, 33 transitions, 288 flow [2021-03-26 10:41:40,187 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=288, PETRI_PLACES=79, PETRI_TRANSITIONS=33} [2021-03-26 10:41:40,187 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 33 predicate places. [2021-03-26 10:41:40,187 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:41:40,187 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 33 transitions, 288 flow [2021-03-26 10:41:40,189 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 33 transitions, 288 flow [2021-03-26 10:41:40,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 33 transitions, 288 flow [2021-03-26 10:41:40,196 INFO L129 PetriNetUnfolder]: 11/54 cut-off events. [2021-03-26 10:41:40,196 INFO L130 PetriNetUnfolder]: For 201/212 co-relation queries the response was YES. [2021-03-26 10:41:40,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 54 events. 11/54 cut-off events. For 201/212 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 164 event pairs, 0 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 230. Up to 19 conditions per place. [2021-03-26 10:41:40,197 INFO L142 LiptonReduction]: Number of co-enabled transitions 76 [2021-03-26 10:41:40,928 WARN L205 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 182 [2021-03-26 10:41:41,152 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-03-26 10:41:42,462 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 337 DAG size of output: 258 [2021-03-26 10:41:42,957 WARN L205 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-26 10:41:43,130 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-26 10:41:43,496 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-03-26 10:41:43,615 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-03-26 10:41:43,850 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 10:41:44,081 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-26 10:41:44,585 WARN L205 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-26 10:41:45,096 WARN L205 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2021-03-26 10:41:45,388 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 10:41:45,509 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 10:41:45,594 INFO L154 LiptonReduction]: Checked pairs total: 36 [2021-03-26 10:41:45,594 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 10:41:45,594 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5407 [2021-03-26 10:41:45,595 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 27 transitions, 269 flow [2021-03-26 10:41:45,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:41:45,595 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:41:45,595 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:41:45,595 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 10:41:45,595 INFO L428 AbstractCegarLoop]: === Iteration 20 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:41:45,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:41:45,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1087943478, now seen corresponding path program 1 times [2021-03-26 10:41:45,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:41:45,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115536350] [2021-03-26 10:41:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:41:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:41:45,624 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:41:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 10:41:45,659 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 10:41:45,683 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 10:41:45,683 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 10:41:45,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 10:41:45,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:41:45 BasicIcfg [2021-03-26 10:41:45,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:41:45,773 INFO L168 Benchmark]: Toolchain (without parser) took 30634.70 ms. Allocated memory was 358.6 MB in the beginning and 778.0 MB in the end (delta: 419.4 MB). Free memory was 321.8 MB in the beginning and 523.8 MB in the end (delta: -202.0 MB). Peak memory consumption was 219.3 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:45,773 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 358.6 MB. Free memory was 340.0 MB in the beginning and 339.9 MB in the end (delta: 77.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:41:45,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.57 ms. Allocated memory is still 358.6 MB. Free memory was 321.6 MB in the beginning and 312.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:45,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 358.6 MB. Free memory was 312.5 MB in the beginning and 309.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:45,774 INFO L168 Benchmark]: Boogie Preprocessor took 27.51 ms. Allocated memory is still 358.6 MB. Free memory was 309.4 MB in the beginning and 307.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:45,774 INFO L168 Benchmark]: RCFGBuilder took 1735.59 ms. Allocated memory is still 358.6 MB. Free memory was 307.3 MB in the beginning and 308.6 MB in the end (delta: -1.3 MB). Peak memory consumption was 183.2 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:45,774 INFO L168 Benchmark]: TraceAbstraction took 28296.92 ms. Allocated memory was 358.6 MB in the beginning and 778.0 MB in the end (delta: 419.4 MB). Free memory was 307.6 MB in the beginning and 523.8 MB in the end (delta: -216.2 MB). Peak memory consumption was 203.3 MB. Max. memory is 16.0 GB. [2021-03-26 10:41:45,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 358.6 MB. Free memory was 340.0 MB in the beginning and 339.9 MB in the end (delta: 77.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 518.57 ms. Allocated memory is still 358.6 MB. Free memory was 321.6 MB in the beginning and 312.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 358.6 MB. Free memory was 312.5 MB in the beginning and 309.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.51 ms. Allocated memory is still 358.6 MB. Free memory was 309.4 MB in the beginning and 307.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1735.59 ms. Allocated memory is still 358.6 MB. Free memory was 307.3 MB in the beginning and 308.6 MB in the end (delta: -1.3 MB). Peak memory consumption was 183.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 28296.92 ms. Allocated memory was 358.6 MB in the beginning and 778.0 MB in the end (delta: 419.4 MB). Free memory was 307.6 MB in the beginning and 523.8 MB in the end (delta: -216.2 MB). Peak memory consumption was 203.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5928.4ms, 100 PlacesBefore, 46 PlacesAfterwards, 92 TransitionsBefore, 37 TransitionsAfterwards, 1578 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 62 TotalNumberOfCompositions, 2818 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1476, positive: 1397, positive conditional: 1397, positive unconditional: 0, negative: 79, negative conditional: 79, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1476, positive: 1397, positive conditional: 0, positive unconditional: 1397, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1476, positive: 1397, positive conditional: 0, positive unconditional: 1397, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1072, positive: 1046, positive conditional: 0, positive unconditional: 1046, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1072, positive: 1040, positive conditional: 0, positive unconditional: 1040, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 333, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 316, negative conditional: 0, negative unconditional: 316, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1476, positive: 351, positive conditional: 0, positive unconditional: 351, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 1072, unknown conditional: 0, unknown unconditional: 1072] , Statistics on independence cache: Total cache size (in pairs): 1072, Positive cache size: 1046, Positive conditional cache size: 0, Positive unconditional cache size: 1046, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5182.4ms, 43 PlacesBefore, 33 PlacesAfterwards, 34 TransitionsBefore, 24 TransitionsAfterwards, 318 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 863 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 380, positive: 324, positive conditional: 324, positive unconditional: 0, negative: 56, negative conditional: 56, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 380, positive: 324, positive conditional: 33, positive unconditional: 291, negative: 56, negative conditional: 3, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 380, positive: 324, positive conditional: 33, positive unconditional: 291, negative: 56, negative conditional: 3, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 129, positive: 114, positive conditional: 13, positive unconditional: 101, negative: 15, negative conditional: 3, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 129, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 15, negative conditional: 3, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 422, positive: 110, positive conditional: 0, positive unconditional: 110, negative: 312, negative conditional: 67, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 380, positive: 210, positive conditional: 20, positive unconditional: 190, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 129, unknown conditional: 16, unknown unconditional: 113] , Statistics on independence cache: Total cache size (in pairs): 1201, Positive cache size: 1160, Positive conditional cache size: 13, Positive unconditional cache size: 1147, Negative cache size: 41, Negative conditional cache size: 3, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1380.9ms, 37 PlacesBefore, 31 PlacesAfterwards, 24 TransitionsBefore, 22 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 594 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 184, positive: 136, positive conditional: 136, positive unconditional: 0, negative: 48, negative conditional: 48, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 184, positive: 136, positive conditional: 0, positive unconditional: 136, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 184, positive: 136, positive conditional: 0, positive unconditional: 136, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 160, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 133, negative conditional: 0, negative unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 184, positive: 129, positive conditional: 0, positive unconditional: 129, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 1213, Positive cache size: 1167, Positive conditional cache size: 13, Positive unconditional cache size: 1154, Negative cache size: 46, Negative conditional cache size: 3, Negative unconditional cache size: 43, Eliminated conditions: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4ms, 32 PlacesBefore, 32 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 186 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 45, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 45, positive: 30, positive conditional: 0, positive unconditional: 30, 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): 1214, Positive cache size: 1168, Positive conditional cache size: 13, Positive unconditional cache size: 1155, Negative cache size: 46, Negative conditional cache size: 3, Negative unconditional cache size: 43, Eliminated conditions: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.4ms, 34 PlacesBefore, 34 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 216 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 71, positive: 55, positive conditional: 55, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 71, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 71, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 71, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1215, Positive cache size: 1169, Positive conditional cache size: 13, Positive unconditional cache size: 1156, Negative cache size: 46, Negative conditional cache size: 3, Negative unconditional cache size: 43, Eliminated conditions: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.9ms, 36 PlacesBefore, 36 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 148 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 44, positive: 34, positive conditional: 3, positive unconditional: 31, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44, positive: 34, positive conditional: 3, positive unconditional: 31, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 44, positive: 30, positive conditional: 2, positive unconditional: 28, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 4, unknown conditional: 1, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 1219, Positive cache size: 1173, Positive conditional cache size: 14, Positive unconditional cache size: 1159, Negative cache size: 46, Negative conditional cache size: 3, Negative unconditional cache size: 43, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.2ms, 39 PlacesBefore, 39 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 144 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 39, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 39, positive: 29, positive conditional: 3, positive unconditional: 26, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 29, positive conditional: 3, positive unconditional: 26, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 39, positive: 28, positive conditional: 3, positive unconditional: 25, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1220, Positive cache size: 1174, Positive conditional cache size: 14, Positive unconditional cache size: 1160, Negative cache size: 46, Negative conditional cache size: 3, Negative unconditional cache size: 43, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 98.0ms, 41 PlacesBefore, 41 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 142 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 51, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 51, positive: 42, positive conditional: 9, positive unconditional: 33, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 51, positive: 42, positive conditional: 9, positive unconditional: 33, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 7, positive conditional: 1, positive unconditional: 6, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 83, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 52, negative conditional: 44, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, positive: 35, positive conditional: 8, positive unconditional: 27, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 10, unknown conditional: 3, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 1230, Positive cache size: 1181, Positive conditional cache size: 15, Positive unconditional cache size: 1166, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.5ms, 45 PlacesBefore, 45 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 326 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 95 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 62, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 62, positive: 57, positive conditional: 15, positive unconditional: 42, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 57, positive conditional: 15, positive unconditional: 42, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 62, positive: 53, positive conditional: 13, positive unconditional: 40, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1234, Positive cache size: 1185, Positive conditional cache size: 17, Positive unconditional cache size: 1168, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.4ms, 48 PlacesBefore, 48 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 126 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 86, positive: 79, positive conditional: 79, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 86, positive: 79, positive conditional: 20, positive unconditional: 59, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 86, positive: 79, positive conditional: 20, positive unconditional: 59, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 86, positive: 79, positive conditional: 20, positive unconditional: 59, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1234, Positive cache size: 1185, Positive conditional cache size: 17, Positive unconditional cache size: 1168, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.3ms, 48 PlacesBefore, 48 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 141 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 103, positive: 95, positive conditional: 95, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 103, positive: 95, positive conditional: 23, positive unconditional: 72, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 103, positive: 95, positive conditional: 23, positive unconditional: 72, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 103, positive: 95, positive conditional: 23, positive unconditional: 72, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1234, Positive cache size: 1185, Positive conditional cache size: 17, Positive unconditional cache size: 1168, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.5ms, 53 PlacesBefore, 53 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 305 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 169, positive: 154, positive conditional: 154, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 169, positive: 154, positive conditional: 52, positive unconditional: 102, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 169, positive: 154, positive conditional: 52, positive unconditional: 102, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 169, positive: 154, positive conditional: 52, positive unconditional: 102, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1234, Positive cache size: 1185, Positive conditional cache size: 17, Positive unconditional cache size: 1168, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 58 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 908.6ms, 57 PlacesBefore, 57 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 432 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 693 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 502, positive: 468, positive conditional: 468, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 502, positive: 468, positive conditional: 169, positive unconditional: 299, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 502, positive: 468, positive conditional: 169, positive unconditional: 299, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 1, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 502, positive: 463, positive conditional: 168, positive unconditional: 295, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 5, unknown conditional: 1, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 1239, Positive cache size: 1190, Positive conditional cache size: 18, Positive unconditional cache size: 1172, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 138 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.0ms, 62 PlacesBefore, 62 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 454 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 245, positive: 226, positive conditional: 226, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 245, positive: 226, positive conditional: 102, positive unconditional: 124, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 245, positive: 226, positive conditional: 102, positive unconditional: 124, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 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: 245, positive: 224, positive conditional: 100, positive unconditional: 124, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1241, Positive cache size: 1192, Positive conditional cache size: 20, Positive unconditional cache size: 1172, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 64 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.1ms, 65 PlacesBefore, 65 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 472 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 272, positive: 252, positive conditional: 252, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 272, positive: 252, positive conditional: 99, positive unconditional: 153, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 272, positive: 252, positive conditional: 99, positive unconditional: 153, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 272, positive: 252, positive conditional: 99, positive unconditional: 153, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1241, Positive cache size: 1192, Positive conditional cache size: 20, Positive unconditional cache size: 1172, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 79 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.9ms, 67 PlacesBefore, 67 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 534 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 597 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 383, positive: 357, positive conditional: 357, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 383, positive: 357, positive conditional: 170, positive unconditional: 187, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 383, positive: 357, positive conditional: 170, positive unconditional: 187, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 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: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ 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] ], Cache Queries: [ total: 383, positive: 355, positive conditional: 170, positive unconditional: 185, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1243, Positive cache size: 1194, Positive conditional cache size: 20, Positive unconditional cache size: 1174, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 107 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.5ms, 71 PlacesBefore, 71 PlacesAfterwards, 58 TransitionsBefore, 58 TransitionsAfterwards, 518 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 496 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 262, positive: 240, positive conditional: 240, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 262, positive: 240, positive conditional: 110, positive unconditional: 130, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 262, positive: 240, positive conditional: 110, positive unconditional: 130, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 262, positive: 240, positive conditional: 110, positive unconditional: 130, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1243, Positive cache size: 1194, Positive conditional cache size: 20, Positive unconditional cache size: 1174, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 72 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4330.6ms, 74 PlacesBefore, 73 PlacesAfterwards, 58 TransitionsBefore, 57 TransitionsAfterwards, 384 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 90, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 90, positive: 90, positive conditional: 52, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 90, positive conditional: 52, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90, positive: 84, positive conditional: 52, positive unconditional: 32, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 1249, Positive cache size: 1200, Positive conditional cache size: 20, Positive unconditional cache size: 1180, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 35 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.7ms, 74 PlacesBefore, 74 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 314 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 1249, Positive cache size: 1200, Positive conditional cache size: 20, Positive unconditional cache size: 1180, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5404.8ms, 79 PlacesBefore, 69 PlacesAfterwards, 33 TransitionsBefore, 27 TransitionsAfterwards, 76 CoEnabledTransitionPairs, 4 FixpointIterations, 3 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 36, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 36, positive: 36, positive conditional: 25, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 36, positive conditional: 25, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 8, 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: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 36, positive: 25, positive conditional: 17, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 11, unknown conditional: 8, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 1260, Positive cache size: 1211, Positive conditional cache size: 28, Positive unconditional cache size: 1183, Negative cache size: 49, Negative conditional cache size: 5, Negative unconditional cache size: 44, Eliminated conditions: 11 - 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; [L710] 0 _Bool main$tmp_guard0; [L711] 0 _Bool main$tmp_guard1; [L713] 0 int x = 0; [L715] 0 int y = 0; [L716] 0 _Bool y$flush_delayed; [L717] 0 int y$mem_tmp; [L718] 0 _Bool y$r_buff0_thd0; [L719] 0 _Bool y$r_buff0_thd1; [L720] 0 _Bool y$r_buff0_thd2; [L721] 0 _Bool y$r_buff0_thd3; [L722] 0 _Bool y$r_buff1_thd0; [L723] 0 _Bool y$r_buff1_thd1; [L724] 0 _Bool y$r_buff1_thd2; [L725] 0 _Bool y$r_buff1_thd3; [L726] 0 _Bool y$read_delayed; [L727] 0 int *y$read_delayed_var; [L728] 0 int y$w_buff0; [L729] 0 _Bool y$w_buff0_used; [L730] 0 int y$w_buff1; [L731] 0 _Bool y$w_buff1_used; [L733] 0 int z = 0; [L734] 0 _Bool weak$$choice0; [L735] 0 _Bool weak$$choice2; [L811] 0 pthread_t t2492; [L812] FCALL, FORK 0 pthread_create(&t2492, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 0 pthread_t t2493; [L814] FCALL, FORK 0 pthread_create(&t2493, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 0 pthread_t t2494; [L816] FCALL, FORK 0 pthread_create(&t2494, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L774] 3 y$w_buff1 = y$w_buff0 [L775] 3 y$w_buff0 = 2 [L776] 3 y$w_buff1_used = y$w_buff0_used [L777] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L779] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L780] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L781] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L782] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L783] 3 y$r_buff0_thd3 = (_Bool)1 [L786] 3 z = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L739] 1 z = 2 [L742] 1 x = 1 VAL [__unbuffered_cnt=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=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L754] 2 x = 2 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L757] 2 y = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L789] 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) [L789] 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) [L790] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L790] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L791] 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 [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L792] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L793] 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 [L760] 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) [L760] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L760] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L760] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L761] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L761] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L762] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L762] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L763] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L763] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L764] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L764] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L767] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L769] 2 return 0; [L747] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L749] 1 return 0; [L796] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L798] 3 return 0; [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L822] 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) [L822] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L822] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L822] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L823] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L823] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L824] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L825] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L826] 0 y$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 [L829] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L830] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L831] 0 y$flush_delayed = weak$$choice2 [L832] 0 y$mem_tmp = y [L833] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L833] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L834] EXPR 0 weak$$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$w_buff0)) [L834] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L835] EXPR 0 weak$$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$w_buff1)) [L835] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L836] EXPR 0 weak$$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)) [L836] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L837] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L837] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L838] EXPR 0 weak$$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)) [L838] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L839] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2) [L841] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L841] 0 y = y$flush_delayed ? y$mem_tmp : y [L842] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 28121.7ms, OverallIterations: 20, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2066.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5997.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 73 SDtfs, 38 SDslu, 19 SDs, 0 SdLazy, 421 SolverSat, 127 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 545.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 610.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=662occurred in iteration=17, InterpolantAutomatonStates: 90, 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: 60.6ms SsaConstructionTime, 492.6ms SatisfiabilityAnalysisTime, 1351.5ms InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 1720 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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...