/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 06:41:00,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 06:41:00,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 06:41:00,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 06:41:00,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 06:41:00,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 06:41:00,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 06:41:00,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 06:41:00,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 06:41:00,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 06:41:00,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 06:41:00,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 06:41:00,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 06:41:00,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 06:41:00,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 06:41:00,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 06:41:00,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 06:41:00,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 06:41:00,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 06:41:00,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 06:41:00,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 06:41:00,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 06:41:00,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 06:41:00,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 06:41:00,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 06:41:00,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 06:41:00,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 06:41:00,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 06:41:00,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 06:41:00,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 06:41:00,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 06:41:00,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 06:41:00,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 06:41:00,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 06:41:00,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 06:41:00,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 06:41:00,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 06:41:00,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 06:41:00,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 06:41:00,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 06:41:00,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 06:41:00,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-06-11 06:41:00,779 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 06:41:00,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 06:41:00,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 06:41:00,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 06:41:00,781 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 06:41:00,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 06:41:00,782 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 06:41:00,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 06:41:00,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 06:41:00,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 06:41:00,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 06:41:00,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 06:41:00,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 06:41:00,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 06:41:00,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 06:41:00,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 06:41:00,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 06:41:00,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 06:41:00,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 06:41:00,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 06:41:00,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 06:41:00,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:41:00,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 06:41:00,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 06:41:00,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 06:41:00,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 06:41:00,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 06:41:00,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 06:41:00,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 06:41:00,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 06:41:01,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 06:41:01,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 06:41:01,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 06:41:01,020 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 06:41:01,020 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 06:41:01,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2021-06-11 06:41:01,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859dcea37/3c9ace8047b44823adf55ebc487d74ee/FLAG1b2a16049 [2021-06-11 06:41:01,505 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 06:41:01,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2021-06-11 06:41:01,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859dcea37/3c9ace8047b44823adf55ebc487d74ee/FLAG1b2a16049 [2021-06-11 06:41:01,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/859dcea37/3c9ace8047b44823adf55ebc487d74ee [2021-06-11 06:41:01,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 06:41:01,533 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 06:41:01,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 06:41:01,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 06:41:01,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 06:41:01,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2871fb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01, skipping insertion in model container [2021-06-11 06:41:01,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 06:41:01,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 06:41:01,728 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/safe016_pso.oepc.i[950,963] [2021-06-11 06:41:01,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:41:01,853 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 06:41:01,861 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/safe016_pso.oepc.i[950,963] [2021-06-11 06:41:01,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:41:01,927 INFO L208 MainTranslator]: Completed translation [2021-06-11 06:41:01,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01 WrapperNode [2021-06-11 06:41:01,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 06:41:01,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 06:41:01,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 06:41:01,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 06:41:01,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 06:41:01,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 06:41:01,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 06:41:01,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 06:41:01,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (1/1) ... [2021-06-11 06:41:01,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 06:41:01,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 06:41:01,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 06:41:01,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 06:41:01,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (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 [2021-06-11 06:41:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 06:41:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 06:41:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 06:41:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 06:41:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 06:41:02,016 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 06:41:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 06:41:02,016 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 06:41:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 06:41:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 06:41:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-11 06:41:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-11 06:41:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 06:41:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 06:41:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 06:41:02,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 06:41:02,019 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 06:41:02,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 06:41:02,252 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 06:41:02,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:41:02 BoogieIcfgContainer [2021-06-11 06:41:02,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 06:41:02,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 06:41:02,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 06:41:02,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 06:41:02,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 06:41:01" (1/3) ... [2021-06-11 06:41:02,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487d7a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:41:02, skipping insertion in model container [2021-06-11 06:41:02,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:41:01" (2/3) ... [2021-06-11 06:41:02,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487d7a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:41:02, skipping insertion in model container [2021-06-11 06:41:02,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:41:02" (3/3) ... [2021-06-11 06:41:02,258 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2021-06-11 06:41:02,261 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 06:41:02,263 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 06:41:02,264 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 06:41:02,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,283 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,283 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,285 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,286 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,286 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,286 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,287 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,287 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,287 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,287 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,287 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,288 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,288 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,288 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,288 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,288 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,288 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,288 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,290 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,293 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,293 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,293 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,293 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,294 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,294 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,295 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:41:02,297 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 06:41:02,308 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-11 06:41:02,320 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 06:41:02,320 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 06:41:02,321 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 06:41:02,321 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 06:41:02,321 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 06:41:02,321 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 06:41:02,321 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 06:41:02,321 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 06:41:02,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 85 transitions, 190 flow [2021-06-11 06:41:02,352 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-06-11 06:41:02,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:41:02,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-06-11 06:41:02,355 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 85 transitions, 190 flow [2021-06-11 06:41:02,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 67 transitions, 146 flow [2021-06-11 06:41:02,360 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:02,368 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 67 transitions, 146 flow [2021-06-11 06:41:02,371 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 67 transitions, 146 flow [2021-06-11 06:41:02,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions, 146 flow [2021-06-11 06:41:02,383 INFO L129 PetriNetUnfolder]: 1/67 cut-off events. [2021-06-11 06:41:02,383 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:41:02,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 67 events. 1/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-06-11 06:41:02,386 INFO L151 LiptonReduction]: Number of co-enabled transitions 1250 [2021-06-11 06:41:02,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,560 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:02,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:41:02,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:41:02,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,661 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:02,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:41:02,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:41:02,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,773 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:02,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:41:02,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:41:02,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,842 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:02,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:41:02,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:41:02,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,913 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:02,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:41:02,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:41:02,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:02,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:02,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,512 INFO L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-06-11 06:41:03,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:03,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,665 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:03,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:41:03,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:41:03,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:03,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,850 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:03,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 06:41:03,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 06:41:03,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:03,865 INFO L147 QuantifierPusher]: treesize reduction 31, result has 11.4 percent of original size 4 [2021-06-11 06:41:04,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:04,050 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:04,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:04,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:41:04,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:41:04,199 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-11 06:41:04,394 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-06-11 06:41:04,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:04,480 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:04,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:04,482 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:04,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:04,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 06:41:04,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:41:04,484 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:04,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:04,486 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:04,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:04,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 06:41:04,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 06:41:04,489 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:41:04,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:04,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 06:41:04,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 06:41:04,506 INFO L163 LiptonReduction]: Checked pairs total: 2055 [2021-06-11 06:41:04,506 INFO L165 LiptonReduction]: Total number of compositions: 50 [2021-06-11 06:41:04,508 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2148 [2021-06-11 06:41:04,514 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-06-11 06:41:04,514 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:41:04,514 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:04,515 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:04,515 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:04,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:04,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1819579583, now seen corresponding path program 1 times [2021-06-11 06:41:04,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:04,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758871311] [2021-06-11 06:41:04,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:04,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:04,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:04,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758871311] [2021-06-11 06:41:04,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:04,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:41:04,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205871093] [2021-06-11 06:41:04,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-11 06:41:04,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:04,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-11 06:41:04,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-11 06:41:04,635 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 135 [2021-06-11 06:41:04,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:04,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 135 [2021-06-11 06:41:04,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:04,647 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-06-11 06:41:04,647 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:41:04,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 06:41:04,648 INFO L132 encePairwiseOnDemand]: 134/135 looper letters, 0 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2021-06-11 06:41:04,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 20 transitions, 52 flow [2021-06-11 06:41:04,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-11 06:41:04,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-11 06:41:04,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 257 transitions. [2021-06-11 06:41:04,655 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9518518518518518 [2021-06-11 06:41:04,655 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 257 transitions. [2021-06-11 06:41:04,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 257 transitions. [2021-06-11 06:41:04,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:04,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 257 transitions. [2021-06-11 06:41:04,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,666 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,667 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 54 flow. Second operand 2 states and 257 transitions. [2021-06-11 06:41:04,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 20 transitions, 52 flow [2021-06-11 06:41:04,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 48 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 06:41:04,669 INFO L241 Difference]: Finished difference. Result has 30 places, 20 transitions, 48 flow [2021-06-11 06:41:04,670 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=48, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2021-06-11 06:41:04,670 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2021-06-11 06:41:04,671 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:04,671 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 20 transitions, 48 flow [2021-06-11 06:41:04,671 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 20 transitions, 48 flow [2021-06-11 06:41:04,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 20 transitions, 48 flow [2021-06-11 06:41:04,674 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-06-11 06:41:04,674 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:41:04,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 06:41:04,674 INFO L151 LiptonReduction]: Number of co-enabled transitions 178 [2021-06-11 06:41:04,675 INFO L163 LiptonReduction]: Checked pairs total: 172 [2021-06-11 06:41:04,675 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:04,675 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-06-11 06:41:04,676 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 48 flow [2021-06-11 06:41:04,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,676 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:04,676 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:04,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 06:41:04,677 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:04,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:04,677 INFO L82 PathProgramCache]: Analyzing trace with hash 572392223, now seen corresponding path program 1 times [2021-06-11 06:41:04,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:04,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848162992] [2021-06-11 06:41:04,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:04,745 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 06:41:04,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:41:04,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:04,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848162992] [2021-06-11 06:41:04,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:04,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:41:04,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746028] [2021-06-11 06:41:04,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:41:04,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:04,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:41:04,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:41:04,756 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 06:41:04,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:04,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 06:41:04,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:04,796 INFO L129 PetriNetUnfolder]: 148/336 cut-off events. [2021-06-11 06:41:04,796 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:41:04,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 336 events. 148/336 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1848 event pairs, 66 based on Foata normal form. 15/327 useless extension candidates. Maximal degree in co-relation 592. Up to 189 conditions per place. [2021-06-11 06:41:04,798 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 7 selfloop transitions, 7 changer transitions 0/26 dead transitions. [2021-06-11 06:41:04,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 88 flow [2021-06-11 06:41:04,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:41:04,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:41:04,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2021-06-11 06:41:04,800 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7925925925925926 [2021-06-11 06:41:04,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 321 transitions. [2021-06-11 06:41:04,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 321 transitions. [2021-06-11 06:41:04,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:04,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 321 transitions. [2021-06-11 06:41:04,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,803 INFO L185 Difference]: Start difference. First operand has 29 places, 20 transitions, 48 flow. Second operand 3 states and 321 transitions. [2021-06-11 06:41:04,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 88 flow [2021-06-11 06:41:04,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 88 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:41:04,804 INFO L241 Difference]: Finished difference. Result has 33 places, 26 transitions, 102 flow [2021-06-11 06:41:04,804 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2021-06-11 06:41:04,804 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2021-06-11 06:41:04,805 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:04,805 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 26 transitions, 102 flow [2021-06-11 06:41:04,805 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 26 transitions, 102 flow [2021-06-11 06:41:04,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 26 transitions, 102 flow [2021-06-11 06:41:04,823 INFO L129 PetriNetUnfolder]: 148/333 cut-off events. [2021-06-11 06:41:04,824 INFO L130 PetriNetUnfolder]: For 31/41 co-relation queries the response was YES. [2021-06-11 06:41:04,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 706 conditions, 333 events. 148/333 cut-off events. For 31/41 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1833 event pairs, 66 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 697. Up to 189 conditions per place. [2021-06-11 06:41:04,826 INFO L151 LiptonReduction]: Number of co-enabled transitions 216 [2021-06-11 06:41:04,828 INFO L163 LiptonReduction]: Checked pairs total: 16 [2021-06-11 06:41:04,828 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:04,828 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-06-11 06:41:04,829 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 102 flow [2021-06-11 06:41:04,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,829 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:04,829 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:04,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 06:41:04,829 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:04,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:04,830 INFO L82 PathProgramCache]: Analyzing trace with hash 702786869, now seen corresponding path program 1 times [2021-06-11 06:41:04,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:04,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479675060] [2021-06-11 06:41:04,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:04,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:04,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:04,868 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 06:41:04,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:41:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:04,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479675060] [2021-06-11 06:41:04,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:04,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:41:04,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826141405] [2021-06-11 06:41:04,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:41:04,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:04,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:41:04,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:41:04,875 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 06:41:04,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:04,876 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 06:41:04,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:04,918 INFO L129 PetriNetUnfolder]: 105/258 cut-off events. [2021-06-11 06:41:04,919 INFO L130 PetriNetUnfolder]: For 74/360 co-relation queries the response was YES. [2021-06-11 06:41:04,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 258 events. 105/258 cut-off events. For 74/360 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1263 event pairs, 2 based on Foata normal form. 3/249 useless extension candidates. Maximal degree in co-relation 726. Up to 142 conditions per place. [2021-06-11 06:41:04,923 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 14 selfloop transitions, 11 changer transitions 0/37 dead transitions. [2021-06-11 06:41:04,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 208 flow [2021-06-11 06:41:04,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:41:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:41:04,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2021-06-11 06:41:04,926 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7944444444444444 [2021-06-11 06:41:04,926 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 429 transitions. [2021-06-11 06:41:04,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 429 transitions. [2021-06-11 06:41:04,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:04,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 429 transitions. [2021-06-11 06:41:04,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,929 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,930 INFO L185 Difference]: Start difference. First operand has 33 places, 26 transitions, 102 flow. Second operand 4 states and 429 transitions. [2021-06-11 06:41:04,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 208 flow [2021-06-11 06:41:04,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:41:04,932 INFO L241 Difference]: Finished difference. Result has 37 places, 34 transitions, 178 flow [2021-06-11 06:41:04,932 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2021-06-11 06:41:04,933 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2021-06-11 06:41:04,933 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:04,933 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 34 transitions, 178 flow [2021-06-11 06:41:04,934 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 34 transitions, 178 flow [2021-06-11 06:41:04,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 34 transitions, 178 flow [2021-06-11 06:41:04,949 INFO L129 PetriNetUnfolder]: 105/251 cut-off events. [2021-06-11 06:41:04,949 INFO L130 PetriNetUnfolder]: For 186/276 co-relation queries the response was YES. [2021-06-11 06:41:04,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 251 events. 105/251 cut-off events. For 186/276 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1271 event pairs, 23 based on Foata normal form. 1/239 useless extension candidates. Maximal degree in co-relation 657. Up to 142 conditions per place. [2021-06-11 06:41:04,951 INFO L151 LiptonReduction]: Number of co-enabled transitions 268 [2021-06-11 06:41:04,955 INFO L163 LiptonReduction]: Checked pairs total: 24 [2021-06-11 06:41:04,955 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:04,955 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-06-11 06:41:04,956 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 34 transitions, 178 flow [2021-06-11 06:41:04,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:04,956 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:04,956 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:04,956 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 06:41:04,956 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:04,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:04,957 INFO L82 PathProgramCache]: Analyzing trace with hash 564273576, now seen corresponding path program 1 times [2021-06-11 06:41:04,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:04,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074946505] [2021-06-11 06:41:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:05,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,034 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 06:41:05,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:41:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:05,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074946505] [2021-06-11 06:41:05,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:05,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:41:05,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823375048] [2021-06-11 06:41:05,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:41:05,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:05,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:41:05,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:41:05,042 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 06:41:05,043 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,043 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:05,043 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 06:41:05,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:05,076 INFO L129 PetriNetUnfolder]: 81/213 cut-off events. [2021-06-11 06:41:05,076 INFO L130 PetriNetUnfolder]: For 219/714 co-relation queries the response was YES. [2021-06-11 06:41:05,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 213 events. 81/213 cut-off events. For 219/714 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1024 event pairs, 5 based on Foata normal form. 17/223 useless extension candidates. Maximal degree in co-relation 701. Up to 114 conditions per place. [2021-06-11 06:41:05,078 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 20 selfloop transitions, 18 changer transitions 0/50 dead transitions. [2021-06-11 06:41:05,078 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 50 transitions, 358 flow [2021-06-11 06:41:05,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:41:05,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:41:05,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2021-06-11 06:41:05,079 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7944444444444444 [2021-06-11 06:41:05,079 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 429 transitions. [2021-06-11 06:41:05,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 429 transitions. [2021-06-11 06:41:05,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:05,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 429 transitions. [2021-06-11 06:41:05,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,082 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,082 INFO L185 Difference]: Start difference. First operand has 37 places, 34 transitions, 178 flow. Second operand 4 states and 429 transitions. [2021-06-11 06:41:05,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 50 transitions, 358 flow [2021-06-11 06:41:05,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 50 transitions, 358 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:41:05,086 INFO L241 Difference]: Finished difference. Result has 43 places, 46 transitions, 350 flow [2021-06-11 06:41:05,086 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=350, PETRI_PLACES=43, PETRI_TRANSITIONS=46} [2021-06-11 06:41:05,086 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2021-06-11 06:41:05,086 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:05,086 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 46 transitions, 350 flow [2021-06-11 06:41:05,086 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 46 transitions, 350 flow [2021-06-11 06:41:05,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 46 transitions, 350 flow [2021-06-11 06:41:05,101 INFO L129 PetriNetUnfolder]: 81/213 cut-off events. [2021-06-11 06:41:05,101 INFO L130 PetriNetUnfolder]: For 463/650 co-relation queries the response was YES. [2021-06-11 06:41:05,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 213 events. 81/213 cut-off events. For 463/650 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1058 event pairs, 12 based on Foata normal form. 3/207 useless extension candidates. Maximal degree in co-relation 719. Up to 114 conditions per place. [2021-06-11 06:41:05,103 INFO L151 LiptonReduction]: Number of co-enabled transitions 360 [2021-06-11 06:41:05,109 INFO L163 LiptonReduction]: Checked pairs total: 36 [2021-06-11 06:41:05,109 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:05,109 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-06-11 06:41:05,114 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 46 transitions, 350 flow [2021-06-11 06:41:05,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:05,114 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:05,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 06:41:05,115 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:05,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:05,115 INFO L82 PathProgramCache]: Analyzing trace with hash 312583987, now seen corresponding path program 1 times [2021-06-11 06:41:05,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:05,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366625906] [2021-06-11 06:41:05,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:05,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:05,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366625906] [2021-06-11 06:41:05,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:05,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:41:05,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721791450] [2021-06-11 06:41:05,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:41:05,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:05,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:41:05,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:41:05,163 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 135 [2021-06-11 06:41:05,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 46 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:05,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 135 [2021-06-11 06:41:05,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:05,178 INFO L129 PetriNetUnfolder]: 74/203 cut-off events. [2021-06-11 06:41:05,178 INFO L130 PetriNetUnfolder]: For 502/637 co-relation queries the response was YES. [2021-06-11 06:41:05,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 203 events. 74/203 cut-off events. For 502/637 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1004 event pairs, 8 based on Foata normal form. 6/200 useless extension candidates. Maximal degree in co-relation 706. Up to 103 conditions per place. [2021-06-11 06:41:05,179 INFO L132 encePairwiseOnDemand]: 132/135 looper letters, 1 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2021-06-11 06:41:05,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 362 flow [2021-06-11 06:41:05,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:41:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:41:05,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 349 transitions. [2021-06-11 06:41:05,180 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8617283950617284 [2021-06-11 06:41:05,180 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 349 transitions. [2021-06-11 06:41:05,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 349 transitions. [2021-06-11 06:41:05,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:05,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 349 transitions. [2021-06-11 06:41:05,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,182 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,182 INFO L185 Difference]: Start difference. First operand has 43 places, 46 transitions, 350 flow. Second operand 3 states and 349 transitions. [2021-06-11 06:41:05,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 362 flow [2021-06-11 06:41:05,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 46 transitions, 362 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:41:05,185 INFO L241 Difference]: Finished difference. Result has 46 places, 46 transitions, 367 flow [2021-06-11 06:41:05,185 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=367, PETRI_PLACES=46, PETRI_TRANSITIONS=46} [2021-06-11 06:41:05,185 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2021-06-11 06:41:05,185 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:05,185 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 46 transitions, 367 flow [2021-06-11 06:41:05,185 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 46 transitions, 367 flow [2021-06-11 06:41:05,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions, 367 flow [2021-06-11 06:41:05,196 INFO L129 PetriNetUnfolder]: 74/199 cut-off events. [2021-06-11 06:41:05,196 INFO L130 PetriNetUnfolder]: For 490/691 co-relation queries the response was YES. [2021-06-11 06:41:05,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 199 events. 74/199 cut-off events. For 490/691 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 970 event pairs, 8 based on Foata normal form. 3/193 useless extension candidates. Maximal degree in co-relation 717. Up to 103 conditions per place. [2021-06-11 06:41:05,198 INFO L151 LiptonReduction]: Number of co-enabled transitions 360 [2021-06-11 06:41:05,201 INFO L163 LiptonReduction]: Checked pairs total: 36 [2021-06-11 06:41:05,201 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:05,201 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 06:41:05,202 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 46 transitions, 367 flow [2021-06-11 06:41:05,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,202 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:05,202 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:05,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 06:41:05,202 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:05,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:05,203 INFO L82 PathProgramCache]: Analyzing trace with hash -670548695, now seen corresponding path program 1 times [2021-06-11 06:41:05,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:05,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322327524] [2021-06-11 06:41:05,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:05,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,229 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 06:41:05,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:41:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:05,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322327524] [2021-06-11 06:41:05,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:05,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:41:05,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253368747] [2021-06-11 06:41:05,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:41:05,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:05,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:41:05,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:41:05,240 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 06:41:05,240 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 46 transitions, 367 flow. Second operand has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,240 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:05,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 06:41:05,240 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:05,286 INFO L129 PetriNetUnfolder]: 83/253 cut-off events. [2021-06-11 06:41:05,286 INFO L130 PetriNetUnfolder]: For 684/1197 co-relation queries the response was YES. [2021-06-11 06:41:05,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 253 events. 83/253 cut-off events. For 684/1197 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1446 event pairs, 1 based on Foata normal form. 21/267 useless extension candidates. Maximal degree in co-relation 1066. Up to 119 conditions per place. [2021-06-11 06:41:05,287 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 20 selfloop transitions, 16 changer transitions 17/65 dead transitions. [2021-06-11 06:41:05,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 65 transitions, 636 flow [2021-06-11 06:41:05,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:41:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:41:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 535 transitions. [2021-06-11 06:41:05,289 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7925925925925926 [2021-06-11 06:41:05,289 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 535 transitions. [2021-06-11 06:41:05,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 535 transitions. [2021-06-11 06:41:05,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:05,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 535 transitions. [2021-06-11 06:41:05,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.0) internal successors, (535), 5 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) [2021-06-11 06:41:05,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,292 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,292 INFO L185 Difference]: Start difference. First operand has 46 places, 46 transitions, 367 flow. Second operand 5 states and 535 transitions. [2021-06-11 06:41:05,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 65 transitions, 636 flow [2021-06-11 06:41:05,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 65 transitions, 624 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:41:05,295 INFO L241 Difference]: Finished difference. Result has 51 places, 43 transitions, 403 flow [2021-06-11 06:41:05,296 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=403, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2021-06-11 06:41:05,296 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 18 predicate places. [2021-06-11 06:41:05,296 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:05,296 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 43 transitions, 403 flow [2021-06-11 06:41:05,296 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 43 transitions, 403 flow [2021-06-11 06:41:05,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 403 flow [2021-06-11 06:41:05,306 INFO L129 PetriNetUnfolder]: 44/142 cut-off events. [2021-06-11 06:41:05,306 INFO L130 PetriNetUnfolder]: For 559/642 co-relation queries the response was YES. [2021-06-11 06:41:05,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 142 events. 44/142 cut-off events. For 559/642 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 656 event pairs, 5 based on Foata normal form. 2/140 useless extension candidates. Maximal degree in co-relation 602. Up to 70 conditions per place. [2021-06-11 06:41:05,308 INFO L151 LiptonReduction]: Number of co-enabled transitions 328 [2021-06-11 06:41:05,312 INFO L163 LiptonReduction]: Checked pairs total: 33 [2021-06-11 06:41:05,312 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:05,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 06:41:05,313 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 403 flow [2021-06-11 06:41:05,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,313 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:05,313 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:05,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 06:41:05,313 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:05,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:05,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1100153813, now seen corresponding path program 2 times [2021-06-11 06:41:05,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:05,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883239259] [2021-06-11 06:41:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:05,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,359 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 06:41:05,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:41:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:05,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883239259] [2021-06-11 06:41:05,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:05,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:41:05,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857868140] [2021-06-11 06:41:05,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:41:05,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:05,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:41:05,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:41:05,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 06:41:05,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 403 flow. Second operand has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:05,367 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 06:41:05,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:05,392 INFO L129 PetriNetUnfolder]: 41/135 cut-off events. [2021-06-11 06:41:05,392 INFO L130 PetriNetUnfolder]: For 651/898 co-relation queries the response was YES. [2021-06-11 06:41:05,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 135 events. 41/135 cut-off events. For 651/898 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 596 event pairs, 4 based on Foata normal form. 15/146 useless extension candidates. Maximal degree in co-relation 661. Up to 65 conditions per place. [2021-06-11 06:41:05,394 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 17 selfloop transitions, 20 changer transitions 0/49 dead transitions. [2021-06-11 06:41:05,394 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 553 flow [2021-06-11 06:41:05,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:41:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:41:05,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2021-06-11 06:41:05,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7888888888888889 [2021-06-11 06:41:05,395 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 426 transitions. [2021-06-11 06:41:05,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 426 transitions. [2021-06-11 06:41:05,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:05,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 426 transitions. [2021-06-11 06:41:05,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.5) internal successors, (426), 4 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) [2021-06-11 06:41:05,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,397 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,397 INFO L185 Difference]: Start difference. First operand has 51 places, 43 transitions, 403 flow. Second operand 4 states and 426 transitions. [2021-06-11 06:41:05,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 553 flow [2021-06-11 06:41:05,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 49 transitions, 514 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-11 06:41:05,401 INFO L241 Difference]: Finished difference. Result has 54 places, 46 transitions, 504 flow [2021-06-11 06:41:05,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=504, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2021-06-11 06:41:05,401 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 21 predicate places. [2021-06-11 06:41:05,401 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:05,401 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 46 transitions, 504 flow [2021-06-11 06:41:05,401 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 46 transitions, 504 flow [2021-06-11 06:41:05,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 46 transitions, 504 flow [2021-06-11 06:41:05,412 INFO L129 PetriNetUnfolder]: 41/135 cut-off events. [2021-06-11 06:41:05,412 INFO L130 PetriNetUnfolder]: For 755/822 co-relation queries the response was YES. [2021-06-11 06:41:05,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 135 events. 41/135 cut-off events. For 755/822 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 612 event pairs, 4 based on Foata normal form. 2/133 useless extension candidates. Maximal degree in co-relation 631. Up to 65 conditions per place. [2021-06-11 06:41:05,413 INFO L151 LiptonReduction]: Number of co-enabled transitions 348 [2021-06-11 06:41:05,418 INFO L163 LiptonReduction]: Checked pairs total: 36 [2021-06-11 06:41:05,418 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:05,418 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-06-11 06:41:05,418 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 504 flow [2021-06-11 06:41:05,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,419 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:05,419 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:05,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 06:41:05,420 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:05,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:05,420 INFO L82 PathProgramCache]: Analyzing trace with hash 42938258, now seen corresponding path program 1 times [2021-06-11 06:41:05,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:05,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365457371] [2021-06-11 06:41:05,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:05,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:05,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:05,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365457371] [2021-06-11 06:41:05,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:05,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:41:05,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497436643] [2021-06-11 06:41:05,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:41:05,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:05,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:41:05,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:41:05,465 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 135 [2021-06-11 06:41:05,465 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,465 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:05,465 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 135 [2021-06-11 06:41:05,465 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:05,485 INFO L129 PetriNetUnfolder]: 35/140 cut-off events. [2021-06-11 06:41:05,485 INFO L130 PetriNetUnfolder]: For 910/1058 co-relation queries the response was YES. [2021-06-11 06:41:05,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 140 events. 35/140 cut-off events. For 910/1058 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 696 event pairs, 3 based on Foata normal form. 13/147 useless extension candidates. Maximal degree in co-relation 680. Up to 63 conditions per place. [2021-06-11 06:41:05,486 INFO L132 encePairwiseOnDemand]: 132/135 looper letters, 8 selfloop transitions, 8 changer transitions 5/47 dead transitions. [2021-06-11 06:41:05,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 47 transitions, 550 flow [2021-06-11 06:41:05,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:41:05,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:41:05,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2021-06-11 06:41:05,487 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8493827160493828 [2021-06-11 06:41:05,487 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2021-06-11 06:41:05,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2021-06-11 06:41:05,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:05,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2021-06-11 06:41:05,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,489 INFO L185 Difference]: Start difference. First operand has 54 places, 46 transitions, 504 flow. Second operand 3 states and 344 transitions. [2021-06-11 06:41:05,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 47 transitions, 550 flow [2021-06-11 06:41:05,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 526 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:41:05,493 INFO L241 Difference]: Finished difference. Result has 55 places, 41 transitions, 434 flow [2021-06-11 06:41:05,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2021-06-11 06:41:05,493 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2021-06-11 06:41:05,493 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:05,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 41 transitions, 434 flow [2021-06-11 06:41:05,493 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 41 transitions, 434 flow [2021-06-11 06:41:05,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 41 transitions, 434 flow [2021-06-11 06:41:05,502 INFO L129 PetriNetUnfolder]: 29/122 cut-off events. [2021-06-11 06:41:05,502 INFO L130 PetriNetUnfolder]: For 729/787 co-relation queries the response was YES. [2021-06-11 06:41:05,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 122 events. 29/122 cut-off events. For 729/787 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 571 event pairs, 4 based on Foata normal form. 2/121 useless extension candidates. Maximal degree in co-relation 554. Up to 57 conditions per place. [2021-06-11 06:41:05,503 INFO L151 LiptonReduction]: Number of co-enabled transitions 300 [2021-06-11 06:41:05,507 INFO L163 LiptonReduction]: Checked pairs total: 31 [2021-06-11 06:41:05,507 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:05,507 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 06:41:05,507 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 434 flow [2021-06-11 06:41:05,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,508 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:05,508 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:05,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 06:41:05,508 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:05,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:05,508 INFO L82 PathProgramCache]: Analyzing trace with hash -788244257, now seen corresponding path program 1 times [2021-06-11 06:41:05,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:05,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919975516] [2021-06-11 06:41:05,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:05,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,543 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 06:41:05,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:41:05,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:05,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919975516] [2021-06-11 06:41:05,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:05,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:41:05,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630256448] [2021-06-11 06:41:05,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:41:05,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:05,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:41:05,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:41:05,553 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 135 [2021-06-11 06:41:05,553 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 434 flow. Second operand has 5 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:05,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 135 [2021-06-11 06:41:05,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:05,588 INFO L129 PetriNetUnfolder]: 28/150 cut-off events. [2021-06-11 06:41:05,588 INFO L130 PetriNetUnfolder]: For 1063/1278 co-relation queries the response was YES. [2021-06-11 06:41:05,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 150 events. 28/150 cut-off events. For 1063/1278 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 826 event pairs, 0 based on Foata normal form. 8/153 useless extension candidates. Maximal degree in co-relation 770. Up to 63 conditions per place. [2021-06-11 06:41:05,589 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 13 selfloop transitions, 13 changer transitions 20/58 dead transitions. [2021-06-11 06:41:05,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 58 transitions, 738 flow [2021-06-11 06:41:05,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:41:05,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:41:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 535 transitions. [2021-06-11 06:41:05,591 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7925925925925926 [2021-06-11 06:41:05,591 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 535 transitions. [2021-06-11 06:41:05,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 535 transitions. [2021-06-11 06:41:05,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:05,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 535 transitions. [2021-06-11 06:41:05,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.0) internal successors, (535), 5 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) [2021-06-11 06:41:05,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,593 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,593 INFO L185 Difference]: Start difference. First operand has 55 places, 41 transitions, 434 flow. Second operand 5 states and 535 transitions. [2021-06-11 06:41:05,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 58 transitions, 738 flow [2021-06-11 06:41:05,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 670 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-06-11 06:41:05,596 INFO L241 Difference]: Finished difference. Result has 57 places, 35 transitions, 344 flow [2021-06-11 06:41:05,596 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=344, PETRI_PLACES=57, PETRI_TRANSITIONS=35} [2021-06-11 06:41:05,596 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 24 predicate places. [2021-06-11 06:41:05,596 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:05,597 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 35 transitions, 344 flow [2021-06-11 06:41:05,597 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 35 transitions, 344 flow [2021-06-11 06:41:05,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 35 transitions, 344 flow [2021-06-11 06:41:05,604 INFO L129 PetriNetUnfolder]: 12/80 cut-off events. [2021-06-11 06:41:05,604 INFO L130 PetriNetUnfolder]: For 436/436 co-relation queries the response was YES. [2021-06-11 06:41:05,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 80 events. 12/80 cut-off events. For 436/436 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 324 event pairs, 2 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 366. Up to 31 conditions per place. [2021-06-11 06:41:05,605 INFO L151 LiptonReduction]: Number of co-enabled transitions 196 [2021-06-11 06:41:05,608 INFO L163 LiptonReduction]: Checked pairs total: 25 [2021-06-11 06:41:05,608 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:05,608 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 06:41:05,608 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 35 transitions, 344 flow [2021-06-11 06:41:05,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,608 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:05,609 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:05,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 06:41:05,609 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:05,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:05,609 INFO L82 PathProgramCache]: Analyzing trace with hash 2080694793, now seen corresponding path program 1 times [2021-06-11 06:41:05,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:05,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387318191] [2021-06-11 06:41:05,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:05,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:41:05,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:05,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387318191] [2021-06-11 06:41:05,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:05,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:41:05,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093992055] [2021-06-11 06:41:05,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:41:05,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:05,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:41:05,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:41:05,635 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 135 [2021-06-11 06:41:05,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 35 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,635 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:05,635 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 135 [2021-06-11 06:41:05,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:05,647 INFO L129 PetriNetUnfolder]: 9/76 cut-off events. [2021-06-11 06:41:05,648 INFO L130 PetriNetUnfolder]: For 499/499 co-relation queries the response was YES. [2021-06-11 06:41:05,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 76 events. 9/76 cut-off events. For 499/499 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 311 event pairs, 2 based on Foata normal form. 3/78 useless extension candidates. Maximal degree in co-relation 361. Up to 27 conditions per place. [2021-06-11 06:41:05,648 INFO L132 encePairwiseOnDemand]: 132/135 looper letters, 6 selfloop transitions, 5 changer transitions 3/35 dead transitions. [2021-06-11 06:41:05,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 35 transitions, 370 flow [2021-06-11 06:41:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:41:05,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:41:05,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2021-06-11 06:41:05,649 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8493827160493828 [2021-06-11 06:41:05,649 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2021-06-11 06:41:05,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2021-06-11 06:41:05,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:05,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2021-06-11 06:41:05,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,651 INFO L185 Difference]: Start difference. First operand has 57 places, 35 transitions, 344 flow. Second operand 3 states and 344 transitions. [2021-06-11 06:41:05,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 35 transitions, 370 flow [2021-06-11 06:41:05,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 35 transitions, 287 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-06-11 06:41:05,653 INFO L241 Difference]: Finished difference. Result has 51 places, 32 transitions, 242 flow [2021-06-11 06:41:05,654 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=51, PETRI_TRANSITIONS=32} [2021-06-11 06:41:05,654 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 18 predicate places. [2021-06-11 06:41:05,654 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:05,654 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 32 transitions, 242 flow [2021-06-11 06:41:05,654 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 32 transitions, 242 flow [2021-06-11 06:41:05,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 32 transitions, 242 flow [2021-06-11 06:41:05,659 INFO L129 PetriNetUnfolder]: 8/67 cut-off events. [2021-06-11 06:41:05,659 INFO L130 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2021-06-11 06:41:05,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 67 events. 8/67 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 245 event pairs, 2 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 241. Up to 24 conditions per place. [2021-06-11 06:41:05,660 INFO L151 LiptonReduction]: Number of co-enabled transitions 172 [2021-06-11 06:41:05,661 INFO L163 LiptonReduction]: Checked pairs total: 22 [2021-06-11 06:41:05,662 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:05,662 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 06:41:05,662 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 32 transitions, 242 flow [2021-06-11 06:41:05,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,662 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:05,662 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:05,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 06:41:05,662 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:05,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:05,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1094058835, now seen corresponding path program 2 times [2021-06-11 06:41:05,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:05,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949242238] [2021-06-11 06:41:05,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:05,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 06:41:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:05,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949242238] [2021-06-11 06:41:05,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:05,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:41:05,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925764366] [2021-06-11 06:41:05,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:41:05,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:05,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:41:05,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:41:05,693 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2021-06-11 06:41:05,693 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 32 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,693 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:05,693 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2021-06-11 06:41:05,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:05,746 INFO L129 PetriNetUnfolder]: 305/582 cut-off events. [2021-06-11 06:41:05,746 INFO L130 PetriNetUnfolder]: For 1896/2017 co-relation queries the response was YES. [2021-06-11 06:41:05,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 582 events. 305/582 cut-off events. For 1896/2017 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 3457 event pairs, 141 based on Foata normal form. 26/542 useless extension candidates. Maximal degree in co-relation 1460. Up to 392 conditions per place. [2021-06-11 06:41:05,749 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 10 selfloop transitions, 10 changer transitions 0/45 dead transitions. [2021-06-11 06:41:05,749 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 45 transitions, 308 flow [2021-06-11 06:41:05,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:41:05,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:41:05,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 537 transitions. [2021-06-11 06:41:05,750 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7955555555555556 [2021-06-11 06:41:05,750 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 537 transitions. [2021-06-11 06:41:05,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 537 transitions. [2021-06-11 06:41:05,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:05,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 537 transitions. [2021-06-11 06:41:05,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.4) internal successors, (537), 5 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) [2021-06-11 06:41:05,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,752 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,752 INFO L185 Difference]: Start difference. First operand has 51 places, 32 transitions, 242 flow. Second operand 5 states and 537 transitions. [2021-06-11 06:41:05,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 45 transitions, 308 flow [2021-06-11 06:41:05,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 45 transitions, 283 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-11 06:41:05,754 INFO L241 Difference]: Finished difference. Result has 55 places, 41 transitions, 292 flow [2021-06-11 06:41:05,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=292, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2021-06-11 06:41:05,755 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2021-06-11 06:41:05,755 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:05,755 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 41 transitions, 292 flow [2021-06-11 06:41:05,755 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 41 transitions, 292 flow [2021-06-11 06:41:05,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 41 transitions, 292 flow [2021-06-11 06:41:05,783 INFO L129 PetriNetUnfolder]: 305/583 cut-off events. [2021-06-11 06:41:05,783 INFO L130 PetriNetUnfolder]: For 1479/1720 co-relation queries the response was YES. [2021-06-11 06:41:05,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1911 conditions, 583 events. 305/583 cut-off events. For 1479/1720 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 3530 event pairs, 141 based on Foata normal form. 4/521 useless extension candidates. Maximal degree in co-relation 1888. Up to 488 conditions per place. [2021-06-11 06:41:05,788 INFO L151 LiptonReduction]: Number of co-enabled transitions 316 [2021-06-11 06:41:05,790 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:41:05,790 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:05,790 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-06-11 06:41:05,790 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 292 flow [2021-06-11 06:41:05,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,791 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:05,791 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:05,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 06:41:05,791 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:05,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:05,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1024246248, now seen corresponding path program 1 times [2021-06-11 06:41:05,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:05,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267388405] [2021-06-11 06:41:05,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:05,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 06:41:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:05,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267388405] [2021-06-11 06:41:05,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:05,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:41:05,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851392897] [2021-06-11 06:41:05,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:41:05,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:05,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:41:05,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:41:05,823 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2021-06-11 06:41:05,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 292 flow. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:05,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2021-06-11 06:41:05,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:05,894 INFO L129 PetriNetUnfolder]: 267/541 cut-off events. [2021-06-11 06:41:05,894 INFO L130 PetriNetUnfolder]: For 2213/3674 co-relation queries the response was YES. [2021-06-11 06:41:05,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2202 conditions, 541 events. 267/541 cut-off events. For 2213/3674 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 3325 event pairs, 37 based on Foata normal form. 147/636 useless extension candidates. Maximal degree in co-relation 2177. Up to 469 conditions per place. [2021-06-11 06:41:05,897 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 9 selfloop transitions, 19 changer transitions 1/54 dead transitions. [2021-06-11 06:41:05,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 426 flow [2021-06-11 06:41:05,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 06:41:05,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 06:41:05,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 752 transitions. [2021-06-11 06:41:05,899 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7957671957671958 [2021-06-11 06:41:05,899 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 752 transitions. [2021-06-11 06:41:05,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 752 transitions. [2021-06-11 06:41:05,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:05,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 752 transitions. [2021-06-11 06:41:05,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 107.42857142857143) internal successors, (752), 7 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 135.0) internal successors, (1080), 8 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,902 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 135.0) internal successors, (1080), 8 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,902 INFO L185 Difference]: Start difference. First operand has 55 places, 41 transitions, 292 flow. Second operand 7 states and 752 transitions. [2021-06-11 06:41:05,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 426 flow [2021-06-11 06:41:05,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 421 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:41:05,904 INFO L241 Difference]: Finished difference. Result has 63 places, 50 transitions, 419 flow [2021-06-11 06:41:05,905 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=419, PETRI_PLACES=63, PETRI_TRANSITIONS=50} [2021-06-11 06:41:05,905 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2021-06-11 06:41:05,905 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:05,905 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 50 transitions, 419 flow [2021-06-11 06:41:05,905 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 50 transitions, 419 flow [2021-06-11 06:41:05,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 50 transitions, 419 flow [2021-06-11 06:41:05,940 INFO L129 PetriNetUnfolder]: 250/539 cut-off events. [2021-06-11 06:41:05,940 INFO L130 PetriNetUnfolder]: For 2179/3161 co-relation queries the response was YES. [2021-06-11 06:41:05,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2549 conditions, 539 events. 250/539 cut-off events. For 2179/3161 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 3445 event pairs, 38 based on Foata normal form. 8/495 useless extension candidates. Maximal degree in co-relation 2522. Up to 466 conditions per place. [2021-06-11 06:41:05,945 INFO L151 LiptonReduction]: Number of co-enabled transitions 448 [2021-06-11 06:41:05,948 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:41:05,948 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:05,949 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-06-11 06:41:05,949 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 419 flow [2021-06-11 06:41:05,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,949 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:05,949 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:05,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-11 06:41:05,949 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:05,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:05,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1824728785, now seen corresponding path program 1 times [2021-06-11 06:41:05,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:05,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975987734] [2021-06-11 06:41:05,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:05,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:05,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:05,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 06:41:05,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:05,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975987734] [2021-06-11 06:41:05,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:05,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 06:41:05,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904907259] [2021-06-11 06:41:05,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 06:41:05,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:05,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 06:41:05,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 06:41:05,982 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2021-06-11 06:41:05,983 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 419 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:05,983 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:05,983 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2021-06-11 06:41:05,983 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:06,097 INFO L129 PetriNetUnfolder]: 219/485 cut-off events. [2021-06-11 06:41:06,097 INFO L130 PetriNetUnfolder]: For 3174/7214 co-relation queries the response was YES. [2021-06-11 06:41:06,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2698 conditions, 485 events. 219/485 cut-off events. For 3174/7214 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 3111 event pairs, 5 based on Foata normal form. 248/685 useless extension candidates. Maximal degree in co-relation 2669. Up to 430 conditions per place. [2021-06-11 06:41:06,099 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 4 selfloop transitions, 24 changer transitions 14/63 dead transitions. [2021-06-11 06:41:06,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 615 flow [2021-06-11 06:41:06,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 06:41:06,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 06:41:06,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 967 transitions. [2021-06-11 06:41:06,101 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7958847736625514 [2021-06-11 06:41:06,101 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 967 transitions. [2021-06-11 06:41:06,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 967 transitions. [2021-06-11 06:41:06,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:06,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 967 transitions. [2021-06-11 06:41:06,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 107.44444444444444) internal successors, (967), 9 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:06,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 135.0) internal successors, (1350), 10 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:06,105 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 135.0) internal successors, (1350), 10 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:06,105 INFO L185 Difference]: Start difference. First operand has 63 places, 50 transitions, 419 flow. Second operand 9 states and 967 transitions. [2021-06-11 06:41:06,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 615 flow [2021-06-11 06:41:06,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 63 transitions, 570 flow, removed 17 selfloop flow, removed 2 redundant places. [2021-06-11 06:41:06,111 INFO L241 Difference]: Finished difference. Result has 72 places, 49 transitions, 444 flow [2021-06-11 06:41:06,112 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=444, PETRI_PLACES=72, PETRI_TRANSITIONS=49} [2021-06-11 06:41:06,112 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 39 predicate places. [2021-06-11 06:41:06,112 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:06,112 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 49 transitions, 444 flow [2021-06-11 06:41:06,112 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 49 transitions, 444 flow [2021-06-11 06:41:06,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 49 transitions, 444 flow [2021-06-11 06:41:06,129 INFO L129 PetriNetUnfolder]: 84/246 cut-off events. [2021-06-11 06:41:06,129 INFO L130 PetriNetUnfolder]: For 1247/1482 co-relation queries the response was YES. [2021-06-11 06:41:06,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 246 events. 84/246 cut-off events. For 1247/1482 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 1598 event pairs, 2 based on Foata normal form. 8/229 useless extension candidates. Maximal degree in co-relation 1144. Up to 108 conditions per place. [2021-06-11 06:41:06,131 INFO L151 LiptonReduction]: Number of co-enabled transitions 368 [2021-06-11 06:41:06,134 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:41:06,134 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:06,134 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-06-11 06:41:06,135 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 444 flow [2021-06-11 06:41:06,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:06,135 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:41:06,135 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:41:06,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-11 06:41:06,135 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:41:06,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:41:06,135 INFO L82 PathProgramCache]: Analyzing trace with hash 389454382, now seen corresponding path program 1 times [2021-06-11 06:41:06,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:41:06,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390243741] [2021-06-11 06:41:06,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:41:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:41:06,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:06,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:06,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:06,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:06,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:06,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:06,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:06,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:41:06,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:41:06,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 06:41:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:41:06,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390243741] [2021-06-11 06:41:06,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:41:06,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 06:41:06,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291829291] [2021-06-11 06:41:06,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 06:41:06,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:41:06,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 06:41:06,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-11 06:41:06,183 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2021-06-11 06:41:06,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 444 flow. Second operand has 7 states, 7 states have (on average 103.85714285714286) internal successors, (727), 7 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:06,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:41:06,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2021-06-11 06:41:06,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:41:06,271 INFO L129 PetriNetUnfolder]: 74/219 cut-off events. [2021-06-11 06:41:06,271 INFO L130 PetriNetUnfolder]: For 1845/3326 co-relation queries the response was YES. [2021-06-11 06:41:06,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 219 events. 74/219 cut-off events. For 1845/3326 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1352 event pairs, 0 based on Foata normal form. 171/362 useless extension candidates. Maximal degree in co-relation 1200. Up to 97 conditions per place. [2021-06-11 06:41:06,272 INFO L132 encePairwiseOnDemand]: 128/135 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2021-06-11 06:41:06,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 51 transitions, 510 flow [2021-06-11 06:41:06,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 06:41:06,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 06:41:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1164 transitions. [2021-06-11 06:41:06,274 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7838383838383839 [2021-06-11 06:41:06,274 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1164 transitions. [2021-06-11 06:41:06,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1164 transitions. [2021-06-11 06:41:06,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:41:06,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1164 transitions. [2021-06-11 06:41:06,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 105.81818181818181) internal successors, (1164), 11 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:06,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:06,279 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 135.0) internal successors, (1620), 12 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:06,279 INFO L185 Difference]: Start difference. First operand has 71 places, 49 transitions, 444 flow. Second operand 11 states and 1164 transitions. [2021-06-11 06:41:06,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 51 transitions, 510 flow [2021-06-11 06:41:06,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 51 transitions, 414 flow, removed 17 selfloop flow, removed 13 redundant places. [2021-06-11 06:41:06,284 INFO L241 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2021-06-11 06:41:06,284 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2021-06-11 06:41:06,284 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 34 predicate places. [2021-06-11 06:41:06,284 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:41:06,284 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 0 transitions, 0 flow [2021-06-11 06:41:06,284 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 0 transitions, 0 flow [2021-06-11 06:41:06,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 06:41:06,285 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 06:41:06,285 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:41:06,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 06:41:06,285 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 06:41:06,285 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:41:06,285 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:41:06,286 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-06-11 06:41:06,286 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 06:41:06,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 103.85714285714286) internal successors, (727), 7 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:41:06,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-11 06:41:06,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:41:06 BasicIcfg [2021-06-11 06:41:06,289 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 06:41:06,289 INFO L168 Benchmark]: Toolchain (without parser) took 4756.25 ms. Allocated memory was 373.3 MB in the beginning and 474.0 MB in the end (delta: 100.7 MB). Free memory was 336.0 MB in the beginning and 373.2 MB in the end (delta: -37.2 MB). Peak memory consumption was 64.9 MB. Max. memory is 16.0 GB. [2021-06-11 06:41:06,290 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 373.3 MB. Free memory is still 354.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:41:06,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.74 ms. Allocated memory is still 373.3 MB. Free memory was 335.8 MB in the beginning and 335.7 MB in the end (delta: 57.3 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-06-11 06:41:06,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.32 ms. Allocated memory is still 373.3 MB. Free memory was 335.7 MB in the beginning and 333.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:41:06,290 INFO L168 Benchmark]: Boogie Preprocessor took 12.56 ms. Allocated memory is still 373.3 MB. Free memory was 333.6 MB in the beginning and 332.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:41:06,291 INFO L168 Benchmark]: RCFGBuilder took 289.68 ms. Allocated memory is still 373.3 MB. Free memory was 332.5 MB in the beginning and 306.3 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-11 06:41:06,291 INFO L168 Benchmark]: TraceAbstraction took 4034.41 ms. Allocated memory was 373.3 MB in the beginning and 474.0 MB in the end (delta: 100.7 MB). Free memory was 305.3 MB in the beginning and 373.2 MB in the end (delta: -67.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.0 GB. [2021-06-11 06:41:06,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 373.3 MB. Free memory is still 354.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 391.74 ms. Allocated memory is still 373.3 MB. Free memory was 335.8 MB in the beginning and 335.7 MB in the end (delta: 57.3 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.32 ms. Allocated memory is still 373.3 MB. Free memory was 335.7 MB in the beginning and 333.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.56 ms. Allocated memory is still 373.3 MB. Free memory was 333.6 MB in the beginning and 332.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 289.68 ms. Allocated memory is still 373.3 MB. Free memory was 332.5 MB in the beginning and 306.3 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4034.41 ms. Allocated memory was 373.3 MB in the beginning and 474.0 MB in the end (delta: 100.7 MB). Free memory was 305.3 MB in the beginning and 373.2 MB in the end (delta: -67.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2135.5ms, 79 PlacesBefore, 33 PlacesAfterwards, 67 TransitionsBefore, 21 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 2055 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1314, positive: 1235, positive conditional: 0, positive unconditional: 1235, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 839, positive: 806, positive conditional: 0, positive unconditional: 806, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 839, positive: 806, positive conditional: 0, positive unconditional: 806, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 839, positive: 786, positive conditional: 0, positive unconditional: 786, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 154, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1314, positive: 429, positive conditional: 0, positive unconditional: 429, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 839, unknown conditional: 0, unknown unconditional: 839] , Statistics on independence cache: Total cache size (in pairs): 1336, Positive cache size: 1303, Positive conditional cache size: 0, Positive unconditional cache size: 1303, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2ms, 30 PlacesBefore, 29 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 178 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 172 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 91, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 91, positive: 76, positive conditional: 0, positive unconditional: 76, 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): 1337, Positive cache size: 1304, Positive conditional cache size: 0, Positive unconditional cache size: 1304, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.4ms, 33 PlacesBefore, 33 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 216 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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] , Statistics on independence cache: Total cache size (in pairs): 1337, Positive cache size: 1304, Positive conditional cache size: 0, Positive unconditional cache size: 1304, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.3ms, 37 PlacesBefore, 37 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1339, Positive cache size: 1306, Positive conditional cache size: 0, Positive unconditional cache size: 1306, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.0ms, 43 PlacesBefore, 43 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1340, Positive cache size: 1307, Positive conditional cache size: 0, Positive unconditional cache size: 1307, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.0ms, 46 PlacesBefore, 46 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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] , Statistics on independence cache: Total cache size (in pairs): 1340, Positive cache size: 1307, Positive conditional cache size: 0, Positive unconditional cache size: 1307, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.6ms, 51 PlacesBefore, 51 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 328 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 33 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1341, Positive cache size: 1308, Positive conditional cache size: 0, Positive unconditional cache size: 1308, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.4ms, 54 PlacesBefore, 54 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 348 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1341, Positive cache size: 1308, Positive conditional cache size: 0, Positive unconditional cache size: 1308, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.8ms, 55 PlacesBefore, 55 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 31 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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] , Statistics on independence cache: Total cache size (in pairs): 1341, Positive cache size: 1308, Positive conditional cache size: 0, Positive unconditional cache size: 1308, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1ms, 57 PlacesBefore, 57 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 25 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1341, Positive cache size: 1308, Positive conditional cache size: 0, Positive unconditional cache size: 1308, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3ms, 51 PlacesBefore, 51 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 172 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1342, Positive cache size: 1309, Positive conditional cache size: 0, Positive unconditional cache size: 1309, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.9ms, 55 PlacesBefore, 55 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1342, Positive cache size: 1309, Positive conditional cache size: 0, Positive unconditional cache size: 1309, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.4ms, 63 PlacesBefore, 63 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 448 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1342, Positive cache size: 1309, Positive conditional cache size: 0, Positive unconditional cache size: 1309, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.0ms, 72 PlacesBefore, 71 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1342, Positive cache size: 1309, Positive conditional cache size: 0, Positive unconditional cache size: 1309, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 67 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1342, Positive cache size: 1309, Positive conditional cache size: 0, Positive unconditional cache size: 1309, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3968.7ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 777.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2190.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 78 SDtfs, 61 SDslu, 47 SDs, 0 SdLazy, 230 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 158.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 146.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=504occurred in iteration=7, InterpolantAutomatonStates: 68, 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: 22.2ms SsaConstructionTime, 148.3ms SatisfiabilityAnalysisTime, 415.8ms InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...