/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:12:55,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:12:55,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:12:56,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:12:56,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:12:56,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:12:56,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:12:56,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:12:56,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:12:56,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:12:56,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:12:56,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:12:56,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:12:56,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:12:56,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:12:56,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:12:56,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:12:56,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:12:56,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:12:56,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:12:56,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:12:56,172 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:12:56,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:12:56,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:12:56,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:12:56,177 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:12:56,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:12:56,177 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:12:56,178 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:12:56,178 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:12:56,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:12:56,179 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:12:56,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:12:56,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:12:56,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:12:56,180 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:12:56,181 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:12:56,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:12:56,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:12:56,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:12:56,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:12:56,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:12:56,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:12:56,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:12:56,183 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:12:56,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:12:56,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:12:56,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:12:56,184 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:12:56,184 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:12:56,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:12:56,184 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:12:56,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:12:56,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:12:56,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:12:56,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:12:56,653 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:12:56,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-04-29 00:12:56,747 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9364eff9/bf70ebe4c406400fac0e3d4d2a04d8d5/FLAGe000e5aeb [2021-04-29 00:12:57,394 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:12:57,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-04-29 00:12:57,412 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9364eff9/bf70ebe4c406400fac0e3d4d2a04d8d5/FLAGe000e5aeb [2021-04-29 00:12:57,684 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9364eff9/bf70ebe4c406400fac0e3d4d2a04d8d5 [2021-04-29 00:12:57,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:12:57,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:12:57,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:12:57,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:12:57,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:12:57,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:12:57" (1/1) ... [2021-04-29 00:12:57,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11619674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:57, skipping insertion in model container [2021-04-29 00:12:57,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:12:57" (1/1) ... [2021-04-29 00:12:57,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:12:57,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:12:58,003 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/safe019_tso.opt.i[949,962] [2021-04-29 00:12:58,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:12:58,245 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:12:58,274 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/safe019_tso.opt.i[949,962] [2021-04-29 00:12:58,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:12:58,554 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:12:58,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58 WrapperNode [2021-04-29 00:12:58,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:12:58,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:12:58,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:12:58,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:12:58,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (1/1) ... [2021-04-29 00:12:58,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (1/1) ... [2021-04-29 00:12:58,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:12:58,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:12:58,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:12:58,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:12:58,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (1/1) ... [2021-04-29 00:12:58,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (1/1) ... [2021-04-29 00:12:58,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (1/1) ... [2021-04-29 00:12:58,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (1/1) ... [2021-04-29 00:12:58,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (1/1) ... [2021-04-29 00:12:58,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (1/1) ... [2021-04-29 00:12:58,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (1/1) ... [2021-04-29 00:12:58,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:12:58,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:12:58,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:12:58,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:12:58,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:12:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:12:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:12:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:12:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:12:58,827 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:12:58,827 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:12:58,828 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:12:58,828 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:12:58,829 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:12:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:12:58,829 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-29 00:12:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-29 00:12:58,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:12:58,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:12:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:12:58,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:12:58,832 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:12:59,382 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:12:59,383 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:12:59,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:12:59 BoogieIcfgContainer [2021-04-29 00:12:59,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:12:59,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:12:59,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:12:59,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:12:59,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:12:57" (1/3) ... [2021-04-29 00:12:59,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2309f2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:12:59, skipping insertion in model container [2021-04-29 00:12:59,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:12:58" (2/3) ... [2021-04-29 00:12:59,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2309f2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:12:59, skipping insertion in model container [2021-04-29 00:12:59,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:12:59" (3/3) ... [2021-04-29 00:12:59,396 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2021-04-29 00:12:59,403 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:12:59,409 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:12:59,410 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:12:59,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,459 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,459 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,460 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,460 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,460 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,461 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,461 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,463 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,463 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,463 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,463 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,463 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,464 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,464 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,465 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,465 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,466 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,466 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,466 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,466 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,467 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,469 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,469 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,469 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,469 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,469 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,470 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,470 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,470 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,470 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,471 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,471 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,471 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,473 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,474 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,474 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,480 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,481 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,481 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,484 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,484 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,485 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,488 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,488 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:12:59,491 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:12:59,518 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 00:12:59,564 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:12:59,564 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:12:59,564 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:12:59,565 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:12:59,565 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:12:59,565 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:12:59,566 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:12:59,566 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:12:59,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-04-29 00:12:59,682 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-04-29 00:12:59,682 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:12:59,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-04-29 00:12:59,691 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-04-29 00:12:59,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-04-29 00:12:59,717 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:12:59,733 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 68 transitions, 148 flow [2021-04-29 00:12:59,739 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 68 transitions, 148 flow [2021-04-29 00:12:59,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 68 transitions, 148 flow [2021-04-29 00:12:59,787 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-04-29 00:12:59,788 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:12:59,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-04-29 00:12:59,793 INFO L146 LiptonReduction]: Number of co-enabled transitions 1250 [2021-04-29 00:13:04,961 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:13:05,112 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:13:05,291 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:13:05,456 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:13:05,621 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:13:07,564 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:13:07,756 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:13:07,922 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:13:08,091 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:13:09,095 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:13:09,317 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:13:09,537 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:13:09,743 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:13:09,921 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:13:10,102 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:13:10,318 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:13:10,573 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:13:10,811 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:13:11,027 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:13:11,334 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:13:11,596 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:13:11,907 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:13:12,233 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:13:12,334 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-29 00:13:12,575 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:13:12,843 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:13:13,085 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:13:13,265 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:13:13,411 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:13:13,626 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:13:13,873 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:13:14,003 INFO L158 LiptonReduction]: Checked pairs total: 10580 [2021-04-29 00:13:14,003 INFO L160 LiptonReduction]: Total number of compositions: 117 [2021-04-29 00:13:14,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14294 [2021-04-29 00:13:14,030 INFO L129 PetriNetUnfolder]: 0/81 cut-off events. [2021-04-29 00:13:14,031 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:13:14,031 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:14,032 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:14,032 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:14,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:14,038 INFO L82 PathProgramCache]: Analyzing trace with hash -864012930, now seen corresponding path program 1 times [2021-04-29 00:13:14,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:14,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827339693] [2021-04-29 00:13:14,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:14,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:14,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:14,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:14,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827339693] [2021-04-29 00:13:14,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:14,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:13:14,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301742075] [2021-04-29 00:13:14,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:13:14,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:14,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:13:14,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:13:14,390 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 203 [2021-04-29 00:13:14,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 83 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:14,395 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:14,395 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 203 [2021-04-29 00:13:14,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:14,475 INFO L129 PetriNetUnfolder]: 5/93 cut-off events. [2021-04-29 00:13:14,475 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:13:14,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 93 events. 5/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 464 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 87. Up to 18 conditions per place. [2021-04-29 00:13:14,478 INFO L132 encePairwiseOnDemand]: 187/203 looper letters, 1 selfloop transitions, 2 changer transitions 57/88 dead transitions. [2021-04-29 00:13:14,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 88 transitions, 240 flow [2021-04-29 00:13:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:13:14,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:13:14,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2021-04-29 00:13:14,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7602627257799671 [2021-04-29 00:13:14,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 463 transitions. [2021-04-29 00:13:14,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 463 transitions. [2021-04-29 00:13:14,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:14,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 463 transitions. [2021-04-29 00:13:14,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:14,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:14,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:14,521 INFO L185 Difference]: Start difference. First operand has 96 places, 83 transitions, 178 flow. Second operand 3 states and 463 transitions. [2021-04-29 00:13:14,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 88 transitions, 240 flow [2021-04-29 00:13:14,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 88 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 00:13:14,529 INFO L241 Difference]: Finished difference. Result has 95 places, 31 transitions, 78 flow [2021-04-29 00:13:14,531 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=95, PETRI_TRANSITIONS=31} [2021-04-29 00:13:14,532 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -1 predicate places. [2021-04-29 00:13:14,533 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:14,533 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 31 transitions, 78 flow [2021-04-29 00:13:14,533 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 31 transitions, 78 flow [2021-04-29 00:13:14,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 31 transitions, 78 flow [2021-04-29 00:13:14,539 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-04-29 00:13:14,539 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:13:14,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 31 events. 0/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 76 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:13:14,540 INFO L146 LiptonReduction]: Number of co-enabled transitions 536 [2021-04-29 00:13:14,697 INFO L158 LiptonReduction]: Checked pairs total: 557 [2021-04-29 00:13:14,697 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:14,697 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 164 [2021-04-29 00:13:14,700 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 31 transitions, 78 flow [2021-04-29 00:13:14,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:14,700 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:14,701 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:14,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:13:14,701 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:14,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:14,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1403432797, now seen corresponding path program 1 times [2021-04-29 00:13:14,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:14,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771525800] [2021-04-29 00:13:14,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:14,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:14,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:14,852 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:13:14,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:13:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:14,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771525800] [2021-04-29 00:13:14,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:14,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:13:14,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388947572] [2021-04-29 00:13:14,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:13:14,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:14,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:13:14,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:13:14,869 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:13:14,870 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:14,870 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:14,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:13:14,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:14,915 INFO L129 PetriNetUnfolder]: 25/133 cut-off events. [2021-04-29 00:13:14,915 INFO L130 PetriNetUnfolder]: For 23/47 co-relation queries the response was YES. [2021-04-29 00:13:14,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 133 events. 25/133 cut-off events. For 23/47 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 684 event pairs, 2 based on Foata normal form. 5/89 useless extension candidates. Maximal degree in co-relation 216. Up to 43 conditions per place. [2021-04-29 00:13:14,919 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 8 selfloop transitions, 7 changer transitions 0/39 dead transitions. [2021-04-29 00:13:14,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 130 flow [2021-04-29 00:13:14,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:13:14,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:13:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 525 transitions. [2021-04-29 00:13:14,927 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.646551724137931 [2021-04-29 00:13:14,927 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 525 transitions. [2021-04-29 00:13:14,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 525 transitions. [2021-04-29 00:13:14,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:14,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 525 transitions. [2021-04-29 00:13:14,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.25) internal successors, (525), 4 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:14,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:14,935 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:14,936 INFO L185 Difference]: Start difference. First operand has 43 places, 31 transitions, 78 flow. Second operand 4 states and 525 transitions. [2021-04-29 00:13:14,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 130 flow [2021-04-29 00:13:14,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 39 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:13:14,938 INFO L241 Difference]: Finished difference. Result has 46 places, 36 transitions, 117 flow [2021-04-29 00:13:14,938 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2021-04-29 00:13:14,939 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -50 predicate places. [2021-04-29 00:13:14,939 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:14,939 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 36 transitions, 117 flow [2021-04-29 00:13:14,940 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 36 transitions, 117 flow [2021-04-29 00:13:14,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 36 transitions, 117 flow [2021-04-29 00:13:14,952 INFO L129 PetriNetUnfolder]: 11/95 cut-off events. [2021-04-29 00:13:14,952 INFO L130 PetriNetUnfolder]: For 25/34 co-relation queries the response was YES. [2021-04-29 00:13:14,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 95 events. 11/95 cut-off events. For 25/34 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 464 event pairs, 4 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 160. Up to 23 conditions per place. [2021-04-29 00:13:14,955 INFO L146 LiptonReduction]: Number of co-enabled transitions 648 [2021-04-29 00:13:14,960 INFO L158 LiptonReduction]: Checked pairs total: 226 [2021-04-29 00:13:14,960 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:14,960 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-29 00:13:14,962 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 117 flow [2021-04-29 00:13:14,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:14,963 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:14,963 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:14,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:13:14,964 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:14,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:14,964 INFO L82 PathProgramCache]: Analyzing trace with hash -556795669, now seen corresponding path program 1 times [2021-04-29 00:13:14,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:14,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680512593] [2021-04-29 00:13:14,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:15,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:15,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:15,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:15,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:15,057 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:13:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:13:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:15,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680512593] [2021-04-29 00:13:15,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:15,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:13:15,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678996632] [2021-04-29 00:13:15,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:13:15,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:15,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:13:15,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:13:15,074 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:13:15,075 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 117 flow. Second operand has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,075 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:15,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:13:15,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:15,133 INFO L129 PetriNetUnfolder]: 25/163 cut-off events. [2021-04-29 00:13:15,133 INFO L130 PetriNetUnfolder]: For 86/171 co-relation queries the response was YES. [2021-04-29 00:13:15,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 163 events. 25/163 cut-off events. For 86/171 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 951 event pairs, 9 based on Foata normal form. 11/111 useless extension candidates. Maximal degree in co-relation 330. Up to 36 conditions per place. [2021-04-29 00:13:15,136 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 8 selfloop transitions, 7 changer transitions 5/44 dead transitions. [2021-04-29 00:13:15,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 44 transitions, 188 flow [2021-04-29 00:13:15,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:13:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:13:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2021-04-29 00:13:15,139 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6433497536945813 [2021-04-29 00:13:15,139 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2021-04-29 00:13:15,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2021-04-29 00:13:15,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:15,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2021-04-29 00:13:15,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,148 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,148 INFO L185 Difference]: Start difference. First operand has 46 places, 36 transitions, 117 flow. Second operand 5 states and 653 transitions. [2021-04-29 00:13:15,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 44 transitions, 188 flow [2021-04-29 00:13:15,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 44 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:13:15,156 INFO L241 Difference]: Finished difference. Result has 52 places, 37 transitions, 149 flow [2021-04-29 00:13:15,156 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=149, PETRI_PLACES=52, PETRI_TRANSITIONS=37} [2021-04-29 00:13:15,158 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -44 predicate places. [2021-04-29 00:13:15,158 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:15,159 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 37 transitions, 149 flow [2021-04-29 00:13:15,159 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 37 transitions, 149 flow [2021-04-29 00:13:15,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 37 transitions, 149 flow [2021-04-29 00:13:15,198 INFO L129 PetriNetUnfolder]: 7/86 cut-off events. [2021-04-29 00:13:15,199 INFO L130 PetriNetUnfolder]: For 58/63 co-relation queries the response was YES. [2021-04-29 00:13:15,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 86 events. 7/86 cut-off events. For 58/63 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 408 event pairs, 3 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 167. Up to 20 conditions per place. [2021-04-29 00:13:15,209 INFO L146 LiptonReduction]: Number of co-enabled transitions 592 [2021-04-29 00:13:15,215 INFO L158 LiptonReduction]: Checked pairs total: 252 [2021-04-29 00:13:15,215 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:15,215 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-04-29 00:13:15,220 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 37 transitions, 149 flow [2021-04-29 00:13:15,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:15,222 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:15,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:13:15,222 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:15,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:15,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1389394301, now seen corresponding path program 2 times [2021-04-29 00:13:15,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:15,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176064745] [2021-04-29 00:13:15,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:15,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:15,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:15,317 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:13:15,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:13:15,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:15,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176064745] [2021-04-29 00:13:15,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:15,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:13:15,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029954431] [2021-04-29 00:13:15,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:13:15,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:15,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:13:15,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:13:15,332 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:13:15,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 37 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:15,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:13:15,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:15,367 INFO L129 PetriNetUnfolder]: 13/92 cut-off events. [2021-04-29 00:13:15,368 INFO L130 PetriNetUnfolder]: For 117/135 co-relation queries the response was YES. [2021-04-29 00:13:15,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 92 events. 13/92 cut-off events. For 117/135 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 408 event pairs, 6 based on Foata normal form. 7/70 useless extension candidates. Maximal degree in co-relation 221. Up to 29 conditions per place. [2021-04-29 00:13:15,369 INFO L132 encePairwiseOnDemand]: 196/203 looper letters, 8 selfloop transitions, 8 changer transitions 1/40 dead transitions. [2021-04-29 00:13:15,369 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 40 transitions, 202 flow [2021-04-29 00:13:15,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:13:15,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:13:15,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 522 transitions. [2021-04-29 00:13:15,372 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2021-04-29 00:13:15,373 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 522 transitions. [2021-04-29 00:13:15,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 522 transitions. [2021-04-29 00:13:15,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:15,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 522 transitions. [2021-04-29 00:13:15,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,379 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,379 INFO L185 Difference]: Start difference. First operand has 52 places, 37 transitions, 149 flow. Second operand 4 states and 522 transitions. [2021-04-29 00:13:15,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 40 transitions, 202 flow [2021-04-29 00:13:15,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 40 transitions, 180 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 00:13:15,388 INFO L241 Difference]: Finished difference. Result has 52 places, 36 transitions, 150 flow [2021-04-29 00:13:15,388 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=52, PETRI_TRANSITIONS=36} [2021-04-29 00:13:15,389 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -44 predicate places. [2021-04-29 00:13:15,389 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:15,389 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 36 transitions, 150 flow [2021-04-29 00:13:15,389 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 36 transitions, 150 flow [2021-04-29 00:13:15,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 36 transitions, 150 flow [2021-04-29 00:13:15,398 INFO L129 PetriNetUnfolder]: 7/76 cut-off events. [2021-04-29 00:13:15,399 INFO L130 PetriNetUnfolder]: For 45/46 co-relation queries the response was YES. [2021-04-29 00:13:15,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 76 events. 7/76 cut-off events. For 45/46 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 332 event pairs, 3 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 158. Up to 20 conditions per place. [2021-04-29 00:13:15,401 INFO L146 LiptonReduction]: Number of co-enabled transitions 552 [2021-04-29 00:13:15,412 INFO L158 LiptonReduction]: Checked pairs total: 188 [2021-04-29 00:13:15,412 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:15,412 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-29 00:13:15,414 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 36 transitions, 150 flow [2021-04-29 00:13:15,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,415 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:15,415 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:15,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:13:15,416 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:15,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:15,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1632232426, now seen corresponding path program 1 times [2021-04-29 00:13:15,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:15,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211462413] [2021-04-29 00:13:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:15,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:15,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:13:15,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:15,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:15,463 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:13:15,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:13:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:15,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211462413] [2021-04-29 00:13:15,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:15,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:13:15,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051124104] [2021-04-29 00:13:15,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:13:15,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:15,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:13:15,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:13:15,477 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:13:15,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 36 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:15,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:13:15,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:15,514 INFO L129 PetriNetUnfolder]: 8/96 cut-off events. [2021-04-29 00:13:15,514 INFO L130 PetriNetUnfolder]: For 74/86 co-relation queries the response was YES. [2021-04-29 00:13:15,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 96 events. 8/96 cut-off events. For 74/86 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 451 event pairs, 1 based on Foata normal form. 9/70 useless extension candidates. Maximal degree in co-relation 218. Up to 22 conditions per place. [2021-04-29 00:13:15,516 INFO L132 encePairwiseOnDemand]: 198/203 looper letters, 8 selfloop transitions, 7 changer transitions 2/39 dead transitions. [2021-04-29 00:13:15,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 39 transitions, 196 flow [2021-04-29 00:13:15,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:13:15,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:13:15,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 521 transitions. [2021-04-29 00:13:15,519 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6416256157635468 [2021-04-29 00:13:15,519 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 521 transitions. [2021-04-29 00:13:15,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 521 transitions. [2021-04-29 00:13:15,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:15,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 521 transitions. [2021-04-29 00:13:15,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,525 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,525 INFO L185 Difference]: Start difference. First operand has 51 places, 36 transitions, 150 flow. Second operand 4 states and 521 transitions. [2021-04-29 00:13:15,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 39 transitions, 196 flow [2021-04-29 00:13:15,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 39 transitions, 178 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:13:15,528 INFO L241 Difference]: Finished difference. Result has 53 places, 36 transitions, 160 flow [2021-04-29 00:13:15,529 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2021-04-29 00:13:15,529 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -43 predicate places. [2021-04-29 00:13:15,529 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:15,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 36 transitions, 160 flow [2021-04-29 00:13:15,530 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 36 transitions, 160 flow [2021-04-29 00:13:15,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 36 transitions, 160 flow [2021-04-29 00:13:15,540 INFO L129 PetriNetUnfolder]: 4/80 cut-off events. [2021-04-29 00:13:15,540 INFO L130 PetriNetUnfolder]: For 62/64 co-relation queries the response was YES. [2021-04-29 00:13:15,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 80 events. 4/80 cut-off events. For 62/64 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 367 event pairs, 2 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 158. Up to 15 conditions per place. [2021-04-29 00:13:15,542 INFO L146 LiptonReduction]: Number of co-enabled transitions 514 [2021-04-29 00:13:15,551 INFO L158 LiptonReduction]: Checked pairs total: 188 [2021-04-29 00:13:15,551 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:15,552 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-29 00:13:15,553 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 36 transitions, 160 flow [2021-04-29 00:13:15,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,554 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:15,554 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:15,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:13:15,555 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:15,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:15,555 INFO L82 PathProgramCache]: Analyzing trace with hash -71763469, now seen corresponding path program 1 times [2021-04-29 00:13:15,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:15,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129221435] [2021-04-29 00:13:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:15,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:15,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:15,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:15,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:15,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:15,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129221435] [2021-04-29 00:13:15,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:15,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:13:15,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883840284] [2021-04-29 00:13:15,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:13:15,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:15,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:13:15,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:13:15,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 203 [2021-04-29 00:13:15,603 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 36 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:15,604 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 203 [2021-04-29 00:13:15,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:15,642 INFO L129 PetriNetUnfolder]: 13/160 cut-off events. [2021-04-29 00:13:15,643 INFO L130 PetriNetUnfolder]: For 152/152 co-relation queries the response was YES. [2021-04-29 00:13:15,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 160 events. 13/160 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1005 event pairs, 2 based on Foata normal form. 8/105 useless extension candidates. Maximal degree in co-relation 334. Up to 31 conditions per place. [2021-04-29 00:13:15,645 INFO L132 encePairwiseOnDemand]: 199/203 looper letters, 5 selfloop transitions, 4 changer transitions 5/42 dead transitions. [2021-04-29 00:13:15,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 42 transitions, 221 flow [2021-04-29 00:13:15,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:13:15,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:13:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 578 transitions. [2021-04-29 00:13:15,648 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7118226600985221 [2021-04-29 00:13:15,648 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 578 transitions. [2021-04-29 00:13:15,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 578 transitions. [2021-04-29 00:13:15,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:15,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 578 transitions. [2021-04-29 00:13:15,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,653 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,653 INFO L185 Difference]: Start difference. First operand has 52 places, 36 transitions, 160 flow. Second operand 4 states and 578 transitions. [2021-04-29 00:13:15,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 42 transitions, 221 flow [2021-04-29 00:13:15,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 42 transitions, 206 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:13:15,657 INFO L241 Difference]: Finished difference. Result has 55 places, 35 transitions, 163 flow [2021-04-29 00:13:15,657 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=55, PETRI_TRANSITIONS=35} [2021-04-29 00:13:15,658 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -41 predicate places. [2021-04-29 00:13:15,658 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:15,658 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 35 transitions, 163 flow [2021-04-29 00:13:15,658 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 35 transitions, 163 flow [2021-04-29 00:13:15,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 35 transitions, 163 flow [2021-04-29 00:13:15,669 INFO L129 PetriNetUnfolder]: 4/88 cut-off events. [2021-04-29 00:13:15,670 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2021-04-29 00:13:15,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 88 events. 4/88 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 409 event pairs, 2 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 177. Up to 18 conditions per place. [2021-04-29 00:13:15,672 INFO L146 LiptonReduction]: Number of co-enabled transitions 434 [2021-04-29 00:13:15,676 INFO L158 LiptonReduction]: Checked pairs total: 25 [2021-04-29 00:13:15,676 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:15,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-04-29 00:13:15,678 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 35 transitions, 163 flow [2021-04-29 00:13:15,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,679 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:15,679 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:15,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:13:15,679 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:15,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:15,680 INFO L82 PathProgramCache]: Analyzing trace with hash 204523580, now seen corresponding path program 1 times [2021-04-29 00:13:15,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:15,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095482217] [2021-04-29 00:13:15,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:15,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:15,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:15,733 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-29 00:13:15,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:13:15,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:15,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095482217] [2021-04-29 00:13:15,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:15,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:13:15,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182929155] [2021-04-29 00:13:15,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:13:15,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:15,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:13:15,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:13:15,745 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:13:15,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 35 transitions, 163 flow. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:15,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:15,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:13:15,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:17,460 INFO L129 PetriNetUnfolder]: 7712/11206 cut-off events. [2021-04-29 00:13:17,460 INFO L130 PetriNetUnfolder]: For 18408/19813 co-relation queries the response was YES. [2021-04-29 00:13:17,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25020 conditions, 11206 events. 7712/11206 cut-off events. For 18408/19813 co-relation queries the response was YES. Maximal size of possible extension queue 1713. Compared 80688 event pairs, 4641 based on Foata normal form. 333/4621 useless extension candidates. Maximal degree in co-relation 25001. Up to 8479 conditions per place. [2021-04-29 00:13:17,567 INFO L132 encePairwiseOnDemand]: 188/203 looper letters, 26 selfloop transitions, 26 changer transitions 0/72 dead transitions. [2021-04-29 00:13:17,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 72 transitions, 341 flow [2021-04-29 00:13:17,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:13:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:13:17,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 669 transitions. [2021-04-29 00:13:17,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6591133004926109 [2021-04-29 00:13:17,572 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 669 transitions. [2021-04-29 00:13:17,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 669 transitions. [2021-04-29 00:13:17,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:17,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 669 transitions. [2021-04-29 00:13:17,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:17,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:17,580 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:17,580 INFO L185 Difference]: Start difference. First operand has 54 places, 35 transitions, 163 flow. Second operand 5 states and 669 transitions. [2021-04-29 00:13:17,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 72 transitions, 341 flow [2021-04-29 00:13:17,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 72 transitions, 327 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 00:13:17,595 INFO L241 Difference]: Finished difference. Result has 57 places, 60 transitions, 344 flow [2021-04-29 00:13:17,595 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=344, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2021-04-29 00:13:17,595 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -39 predicate places. [2021-04-29 00:13:17,595 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:17,596 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 60 transitions, 344 flow [2021-04-29 00:13:17,596 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 60 transitions, 344 flow [2021-04-29 00:13:17,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 60 transitions, 344 flow [2021-04-29 00:13:19,261 INFO L129 PetriNetUnfolder]: 7813/11265 cut-off events. [2021-04-29 00:13:19,261 INFO L130 PetriNetUnfolder]: For 7295/11194 co-relation queries the response was YES. [2021-04-29 00:13:19,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34559 conditions, 11265 events. 7813/11265 cut-off events. For 7295/11194 co-relation queries the response was YES. Maximal size of possible extension queue 1702. Compared 81586 event pairs, 4699 based on Foata normal form. 6/4319 useless extension candidates. Maximal degree in co-relation 34541. Up to 10727 conditions per place. [2021-04-29 00:13:19,430 INFO L146 LiptonReduction]: Number of co-enabled transitions 652 [2021-04-29 00:13:19,458 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:13:19,458 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:19,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1863 [2021-04-29 00:13:19,461 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 344 flow [2021-04-29 00:13:19,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:19,462 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:19,462 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:19,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:13:19,463 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:19,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1995564580, now seen corresponding path program 1 times [2021-04-29 00:13:19,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:19,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652436804] [2021-04-29 00:13:19,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:19,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:19,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:19,568 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:13:19,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:13:19,575 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:13:19,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:13:19,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:19,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652436804] [2021-04-29 00:13:19,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:19,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:13:19,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112753700] [2021-04-29 00:13:19,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:13:19,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:19,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:13:19,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:13:19,595 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:13:19,597 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 344 flow. Second operand has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:19,597 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:19,597 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:13:19,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:21,554 INFO L129 PetriNetUnfolder]: 8300/12439 cut-off events. [2021-04-29 00:13:21,555 INFO L130 PetriNetUnfolder]: For 15020/45145 co-relation queries the response was YES. [2021-04-29 00:13:21,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 50203 conditions, 12439 events. 8300/12439 cut-off events. For 15020/45145 co-relation queries the response was YES. Maximal size of possible extension queue 2115. Compared 92447 event pairs, 2142 based on Foata normal form. 432/5112 useless extension candidates. Maximal degree in co-relation 50183. Up to 11882 conditions per place. [2021-04-29 00:13:21,660 INFO L132 encePairwiseOnDemand]: 188/203 looper letters, 26 selfloop transitions, 51 changer transitions 0/97 dead transitions. [2021-04-29 00:13:21,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 97 transitions, 718 flow [2021-04-29 00:13:21,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:13:21,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:13:21,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 940 transitions. [2021-04-29 00:13:21,664 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.661505981703026 [2021-04-29 00:13:21,664 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 940 transitions. [2021-04-29 00:13:21,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 940 transitions. [2021-04-29 00:13:21,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:21,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 940 transitions. [2021-04-29 00:13:21,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 134.28571428571428) internal successors, (940), 7 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:21,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 203.0) internal successors, (1624), 8 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:21,673 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 203.0) internal successors, (1624), 8 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:21,673 INFO L185 Difference]: Start difference. First operand has 57 places, 60 transitions, 344 flow. Second operand 7 states and 940 transitions. [2021-04-29 00:13:21,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 97 transitions, 718 flow [2021-04-29 00:13:21,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 97 transitions, 705 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:13:21,707 INFO L241 Difference]: Finished difference. Result has 65 places, 85 transitions, 697 flow [2021-04-29 00:13:21,708 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=697, PETRI_PLACES=65, PETRI_TRANSITIONS=85} [2021-04-29 00:13:21,708 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -31 predicate places. [2021-04-29 00:13:21,708 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:21,708 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 85 transitions, 697 flow [2021-04-29 00:13:21,709 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 85 transitions, 697 flow [2021-04-29 00:13:21,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 85 transitions, 697 flow [2021-04-29 00:13:23,304 INFO L129 PetriNetUnfolder]: 8290/12423 cut-off events. [2021-04-29 00:13:23,305 INFO L130 PetriNetUnfolder]: For 16212/30456 co-relation queries the response was YES. [2021-04-29 00:13:23,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61492 conditions, 12423 events. 8290/12423 cut-off events. For 16212/30456 co-relation queries the response was YES. Maximal size of possible extension queue 2136. Compared 96558 event pairs, 2127 based on Foata normal form. 8/4735 useless extension candidates. Maximal degree in co-relation 61470. Up to 11876 conditions per place. [2021-04-29 00:13:23,724 INFO L146 LiptonReduction]: Number of co-enabled transitions 958 [2021-04-29 00:13:23,749 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:13:23,750 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:23,750 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2042 [2021-04-29 00:13:23,754 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 85 transitions, 697 flow [2021-04-29 00:13:23,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:23,755 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:23,755 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:23,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:13:23,755 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:23,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:23,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1732960769, now seen corresponding path program 1 times [2021-04-29 00:13:23,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:23,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209829941] [2021-04-29 00:13:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:23,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:23,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:23,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:23,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:23,841 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:13:23,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:13:23,851 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:13:23,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:13:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:23,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209829941] [2021-04-29 00:13:23,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:23,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:13:23,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936227555] [2021-04-29 00:13:23,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:13:23,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:23,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:13:23,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:13:23,870 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:13:23,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 85 transitions, 697 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:23,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:23,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:13:23,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:25,784 INFO L129 PetriNetUnfolder]: 7859/12241 cut-off events. [2021-04-29 00:13:25,784 INFO L130 PetriNetUnfolder]: For 24056/80002 co-relation queries the response was YES. [2021-04-29 00:13:25,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72411 conditions, 12241 events. 7859/12241 cut-off events. For 24056/80002 co-relation queries the response was YES. Maximal size of possible extension queue 2379. Compared 97658 event pairs, 351 based on Foata normal form. 513/5057 useless extension candidates. Maximal degree in co-relation 72387. Up to 11882 conditions per place. [2021-04-29 00:13:25,889 INFO L132 encePairwiseOnDemand]: 188/203 looper letters, 14 selfloop transitions, 76 changer transitions 12/122 dead transitions. [2021-04-29 00:13:25,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 122 transitions, 1267 flow [2021-04-29 00:13:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:13:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:13:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1211 transitions. [2021-04-29 00:13:25,895 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6628352490421456 [2021-04-29 00:13:25,895 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1211 transitions. [2021-04-29 00:13:25,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1211 transitions. [2021-04-29 00:13:25,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:25,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1211 transitions. [2021-04-29 00:13:25,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 134.55555555555554) internal successors, (1211), 9 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:25,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 203.0) internal successors, (2030), 10 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:25,909 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 203.0) internal successors, (2030), 10 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:25,909 INFO L185 Difference]: Start difference. First operand has 65 places, 85 transitions, 697 flow. Second operand 9 states and 1211 transitions. [2021-04-29 00:13:25,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 122 transitions, 1267 flow [2021-04-29 00:13:26,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 122 transitions, 1129 flow, removed 49 selfloop flow, removed 3 redundant places. [2021-04-29 00:13:26,173 INFO L241 Difference]: Finished difference. Result has 73 places, 110 transitions, 1049 flow [2021-04-29 00:13:26,173 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1049, PETRI_PLACES=73, PETRI_TRANSITIONS=110} [2021-04-29 00:13:26,173 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -23 predicate places. [2021-04-29 00:13:26,174 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:26,174 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 110 transitions, 1049 flow [2021-04-29 00:13:26,174 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 110 transitions, 1049 flow [2021-04-29 00:13:26,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 110 transitions, 1049 flow [2021-04-29 00:13:27,260 INFO L129 PetriNetUnfolder]: 5375/8765 cut-off events. [2021-04-29 00:13:27,261 INFO L130 PetriNetUnfolder]: For 28718/47910 co-relation queries the response was YES. [2021-04-29 00:13:27,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53895 conditions, 8765 events. 5375/8765 cut-off events. For 28718/47910 co-relation queries the response was YES. Maximal size of possible extension queue 1917. Compared 73900 event pairs, 351 based on Foata normal form. 5/3311 useless extension candidates. Maximal degree in co-relation 53870. Up to 7699 conditions per place. [2021-04-29 00:13:27,371 INFO L146 LiptonReduction]: Number of co-enabled transitions 1078 [2021-04-29 00:13:27,395 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:13:27,395 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:27,395 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1221 [2021-04-29 00:13:27,397 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 110 transitions, 1049 flow [2021-04-29 00:13:27,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:27,397 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:27,398 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:27,398 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:13:27,398 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:27,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:27,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1184452421, now seen corresponding path program 1 times [2021-04-29 00:13:27,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:27,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290552908] [2021-04-29 00:13:27,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:27,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:27,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:27,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:27,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:27,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:27,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:27,449 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:13:27,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:13:27,458 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:13:27,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:13:27,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:27,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290552908] [2021-04-29 00:13:27,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:27,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 00:13:27,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364640441] [2021-04-29 00:13:27,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 00:13:27,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:27,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 00:13:27,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-29 00:13:27,473 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:13:27,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 110 transitions, 1049 flow. Second operand has 7 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:27,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:27,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:13:27,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:28,984 INFO L129 PetriNetUnfolder]: 5078/8704 cut-off events. [2021-04-29 00:13:28,985 INFO L130 PetriNetUnfolder]: For 33674/65602 co-relation queries the response was YES. [2021-04-29 00:13:29,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61389 conditions, 8704 events. 5078/8704 cut-off events. For 33674/65602 co-relation queries the response was YES. Maximal size of possible extension queue 1890. Compared 75910 event pairs, 0 based on Foata normal form. 438/3686 useless extension candidates. Maximal degree in co-relation 61362. Up to 7732 conditions per place. [2021-04-29 00:13:29,043 INFO L132 encePairwiseOnDemand]: 188/203 looper letters, 2 selfloop transitions, 80 changer transitions 26/123 dead transitions. [2021-04-29 00:13:29,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 123 transitions, 1407 flow [2021-04-29 00:13:29,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 00:13:29,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 00:13:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1458 transitions. [2021-04-29 00:13:29,050 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6529332736229287 [2021-04-29 00:13:29,050 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1458 transitions. [2021-04-29 00:13:29,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1458 transitions. [2021-04-29 00:13:29,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:29,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1458 transitions. [2021-04-29 00:13:29,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 132.54545454545453) internal successors, (1458), 11 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:29,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 203.0) internal successors, (2436), 12 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:29,063 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 203.0) internal successors, (2436), 12 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:29,063 INFO L185 Difference]: Start difference. First operand has 73 places, 110 transitions, 1049 flow. Second operand 11 states and 1458 transitions. [2021-04-29 00:13:29,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 123 transitions, 1407 flow [2021-04-29 00:13:30,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 123 transitions, 1134 flow, removed 98 selfloop flow, removed 4 redundant places. [2021-04-29 00:13:30,394 INFO L241 Difference]: Finished difference. Result has 82 places, 97 transitions, 883 flow [2021-04-29 00:13:30,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=883, PETRI_PLACES=82, PETRI_TRANSITIONS=97} [2021-04-29 00:13:30,395 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -14 predicate places. [2021-04-29 00:13:30,395 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:30,395 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 97 transitions, 883 flow [2021-04-29 00:13:30,396 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 97 transitions, 883 flow [2021-04-29 00:13:30,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 97 transitions, 883 flow [2021-04-29 00:13:30,594 INFO L129 PetriNetUnfolder]: 1162/2319 cut-off events. [2021-04-29 00:13:30,595 INFO L130 PetriNetUnfolder]: For 9289/10635 co-relation queries the response was YES. [2021-04-29 00:13:30,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11873 conditions, 2319 events. 1162/2319 cut-off events. For 9289/10635 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 19614 event pairs, 0 based on Foata normal form. 3/939 useless extension candidates. Maximal degree in co-relation 11844. Up to 945 conditions per place. [2021-04-29 00:13:30,631 INFO L146 LiptonReduction]: Number of co-enabled transitions 600 [2021-04-29 00:13:30,769 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:13:30,770 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:30,770 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 375 [2021-04-29 00:13:30,774 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 97 transitions, 883 flow [2021-04-29 00:13:30,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:30,776 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:30,776 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:30,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 00:13:30,776 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:30,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:30,777 INFO L82 PathProgramCache]: Analyzing trace with hash -2001718443, now seen corresponding path program 1 times [2021-04-29 00:13:30,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:30,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404610168] [2021-04-29 00:13:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:30,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:30,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:13:30,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:30,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:30,860 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:13:30,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:13:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:30,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404610168] [2021-04-29 00:13:30,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:30,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:13:30,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549990149] [2021-04-29 00:13:30,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:13:30,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:30,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:13:30,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:13:30,877 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:13:30,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 97 transitions, 883 flow. Second operand has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:30,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:30,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:13:30,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:31,323 INFO L129 PetriNetUnfolder]: 1756/3487 cut-off events. [2021-04-29 00:13:31,324 INFO L130 PetriNetUnfolder]: For 19489/25763 co-relation queries the response was YES. [2021-04-29 00:13:31,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18203 conditions, 3487 events. 1756/3487 cut-off events. For 19489/25763 co-relation queries the response was YES. Maximal size of possible extension queue 864. Compared 30644 event pairs, 0 based on Foata normal form. 86/1476 useless extension candidates. Maximal degree in co-relation 18172. Up to 1350 conditions per place. [2021-04-29 00:13:31,344 INFO L132 encePairwiseOnDemand]: 195/203 looper letters, 3 selfloop transitions, 8 changer transitions 16/98 dead transitions. [2021-04-29 00:13:31,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 98 transitions, 911 flow [2021-04-29 00:13:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:13:31,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:13:31,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 626 transitions. [2021-04-29 00:13:31,347 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6167487684729064 [2021-04-29 00:13:31,348 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 626 transitions. [2021-04-29 00:13:31,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 626 transitions. [2021-04-29 00:13:31,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:31,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 626 transitions. [2021-04-29 00:13:31,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.2) internal successors, (626), 5 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:31,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:31,354 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:31,354 INFO L185 Difference]: Start difference. First operand has 80 places, 97 transitions, 883 flow. Second operand 5 states and 626 transitions. [2021-04-29 00:13:31,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 98 transitions, 911 flow [2021-04-29 00:13:31,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 98 transitions, 619 flow, removed 67 selfloop flow, removed 15 redundant places. [2021-04-29 00:13:31,714 INFO L241 Difference]: Finished difference. Result has 70 places, 82 transitions, 507 flow [2021-04-29 00:13:31,715 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=507, PETRI_PLACES=70, PETRI_TRANSITIONS=82} [2021-04-29 00:13:31,715 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -26 predicate places. [2021-04-29 00:13:31,715 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:31,715 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 82 transitions, 507 flow [2021-04-29 00:13:31,716 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 82 transitions, 507 flow [2021-04-29 00:13:31,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 82 transitions, 507 flow [2021-04-29 00:13:31,829 INFO L129 PetriNetUnfolder]: 1036/2005 cut-off events. [2021-04-29 00:13:31,829 INFO L130 PetriNetUnfolder]: For 5736/6324 co-relation queries the response was YES. [2021-04-29 00:13:31,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6472 conditions, 2005 events. 1036/2005 cut-off events. For 5736/6324 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 15684 event pairs, 0 based on Foata normal form. 3/816 useless extension candidates. Maximal degree in co-relation 6450. Up to 910 conditions per place. [2021-04-29 00:13:31,850 INFO L146 LiptonReduction]: Number of co-enabled transitions 592 [2021-04-29 00:13:31,858 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:13:31,859 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:31,859 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 144 [2021-04-29 00:13:31,860 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 82 transitions, 507 flow [2021-04-29 00:13:31,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:31,860 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:13:31,860 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:13:31,860 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 00:13:31,861 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:13:31,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:13:31,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1203928532, now seen corresponding path program 1 times [2021-04-29 00:13:31,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:13:31,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39531606] [2021-04-29 00:13:31,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:13:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:13:31,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:31,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:13:31,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:31,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:31,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:13:31,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:13:31,920 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:13:31,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:13:31,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:13:31,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39531606] [2021-04-29 00:13:31,932 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:13:31,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:13:31,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589663071] [2021-04-29 00:13:31,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:13:31,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:13:31,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:13:31,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:13:31,935 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:13:31,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 82 transitions, 507 flow. Second operand has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:31,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:13:31,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:13:31,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:13:32,128 INFO L129 PetriNetUnfolder]: 1539/2837 cut-off events. [2021-04-29 00:13:32,128 INFO L130 PetriNetUnfolder]: For 7655/8585 co-relation queries the response was YES. [2021-04-29 00:13:32,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8205 conditions, 2837 events. 1539/2837 cut-off events. For 7655/8585 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 21908 event pairs, 0 based on Foata normal form. 85/1165 useless extension candidates. Maximal degree in co-relation 8187. Up to 1360 conditions per place. [2021-04-29 00:13:32,136 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 0 selfloop transitions, 0 changer transitions 83/83 dead transitions. [2021-04-29 00:13:32,137 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 83 transitions, 517 flow [2021-04-29 00:13:32,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:13:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:13:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 773 transitions. [2021-04-29 00:13:32,140 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6346469622331691 [2021-04-29 00:13:32,140 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 773 transitions. [2021-04-29 00:13:32,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 773 transitions. [2021-04-29 00:13:32,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:13:32,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 773 transitions. [2021-04-29 00:13:32,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:32,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:32,147 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:32,147 INFO L185 Difference]: Start difference. First operand has 68 places, 82 transitions, 507 flow. Second operand 6 states and 773 transitions. [2021-04-29 00:13:32,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 83 transitions, 517 flow [2021-04-29 00:13:32,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 83 transitions, 460 flow, removed 0 selfloop flow, removed 10 redundant places. [2021-04-29 00:13:32,215 INFO L241 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2021-04-29 00:13:32,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2021-04-29 00:13:32,216 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -34 predicate places. [2021-04-29 00:13:32,216 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:13:32,216 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 0 transitions, 0 flow [2021-04-29 00:13:32,216 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 0 transitions, 0 flow [2021-04-29 00:13:32,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:13:32,217 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:13:32,217 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:13:32,217 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. [2021-04-29 00:13:32,217 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:13:32,217 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:13:32,217 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:13:32,218 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:13:32,219 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:13:32,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:13:32,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 00:13:32,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:13:32 BasicIcfg [2021-04-29 00:13:32,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:13:32,225 INFO L168 Benchmark]: Toolchain (without parser) took 34536.54 ms. Allocated memory was 320.9 MB in the beginning and 7.4 GB in the end (delta: 7.1 GB). Free memory was 294.8 MB in the beginning and 6.5 GB in the end (delta: -6.2 GB). Peak memory consumption was 830.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:13:32,226 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 320.9 MB. Free memory is still 291.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:13:32,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.93 ms. Allocated memory is still 320.9 MB. Free memory was 291.7 MB in the beginning and 290.9 MB in the end (delta: 757.9 kB). Peak memory consumption was 26.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:13:32,226 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.11 ms. Allocated memory is still 320.9 MB. Free memory was 290.9 MB in the beginning and 288.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:13:32,227 INFO L168 Benchmark]: Boogie Preprocessor took 63.56 ms. Allocated memory is still 320.9 MB. Free memory was 288.8 MB in the beginning and 287.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:13:32,227 INFO L168 Benchmark]: RCFGBuilder took 673.25 ms. Allocated memory is still 320.9 MB. Free memory was 287.8 MB in the beginning and 262.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:13:32,228 INFO L168 Benchmark]: TraceAbstraction took 32836.43 ms. Allocated memory was 320.9 MB in the beginning and 7.4 GB in the end (delta: 7.1 GB). Free memory was 261.6 MB in the beginning and 6.5 GB in the end (delta: -6.3 GB). Peak memory consumption was 796.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:13:32,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 320.9 MB. Free memory is still 291.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 824.93 ms. Allocated memory is still 320.9 MB. Free memory was 291.7 MB in the beginning and 290.9 MB in the end (delta: 757.9 kB). Peak memory consumption was 26.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 86.11 ms. Allocated memory is still 320.9 MB. Free memory was 290.9 MB in the beginning and 288.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 63.56 ms. Allocated memory is still 320.9 MB. Free memory was 288.8 MB in the beginning and 287.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 673.25 ms. Allocated memory is still 320.9 MB. Free memory was 287.8 MB in the beginning and 262.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 32836.43 ms. Allocated memory was 320.9 MB in the beginning and 7.4 GB in the end (delta: 7.1 GB). Free memory was 261.6 MB in the beginning and 6.5 GB in the end (delta: -6.3 GB). Peak memory consumption was 796.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14264.6ms, 80 PlacesBefore, 96 PlacesAfterwards, 68 TransitionsBefore, 83 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 8 FixpointIterations, 65 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 117 TotalNumberOfCompositions, 10580 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2972, positive: 2708, positive conditional: 2708, positive unconditional: 0, negative: 264, negative conditional: 264, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1352, positive: 1280, positive conditional: 0, positive unconditional: 1280, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1352, positive: 1280, positive conditional: 0, positive unconditional: 1280, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1352, positive: 1218, positive conditional: 0, positive unconditional: 1218, negative: 134, negative conditional: 0, negative unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 134, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 726, positive: 313, positive conditional: 0, positive unconditional: 313, negative: 413, negative conditional: 0, negative unconditional: 413, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2972, positive: 1428, positive conditional: 1428, positive unconditional: 0, negative: 192, negative conditional: 192, negative unconditional: 0, unknown: 1352, unknown conditional: 1352, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1339, Positive cache size: 1267, Positive conditional cache size: 1267, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 163.6ms, 95 PlacesBefore, 43 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 536 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 557 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 278, positive: 251, positive conditional: 251, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 104, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 104, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 104, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 147, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 278, positive: 161, positive conditional: 161, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 104, unknown conditional: 104, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1443, Positive cache size: 1357, Positive conditional cache size: 1357, Positive unconditional cache size: 0, Negative cache size: 86, Negative conditional cache size: 86, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.6ms, 46 PlacesBefore, 46 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 648 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 226 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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: 33, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1444, Positive cache size: 1358, Positive conditional cache size: 1358, Positive unconditional cache size: 0, Negative cache size: 86, Negative conditional cache size: 86, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.9ms, 52 PlacesBefore, 52 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 592 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 252 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 4, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 4, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 41, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1451, Positive cache size: 1365, Positive conditional cache size: 1365, Positive unconditional cache size: 0, Negative cache size: 86, Negative conditional cache size: 86, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.1ms, 52 PlacesBefore, 51 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 552 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 22, positive conditional: 14, positive unconditional: 8, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, positive: 22, positive conditional: 14, positive unconditional: 8, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 47, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1474, Positive cache size: 1387, Positive conditional cache size: 1387, Positive unconditional cache size: 0, Negative cache size: 87, Negative conditional cache size: 87, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.8ms, 53 PlacesBefore, 52 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 514 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 8, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 8, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1487, Positive cache size: 1399, Positive conditional cache size: 1399, Positive unconditional cache size: 0, Negative cache size: 88, Negative conditional cache size: 88, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.0ms, 55 PlacesBefore, 54 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 434 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 25 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1489, Positive cache size: 1401, Positive conditional cache size: 1401, Positive unconditional cache size: 0, Negative cache size: 88, Negative conditional cache size: 88, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1862.2ms, 57 PlacesBefore, 57 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 652 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): 1489, Positive cache size: 1401, Positive conditional cache size: 1401, Positive unconditional cache size: 0, Negative cache size: 88, Negative conditional cache size: 88, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2040.9ms, 65 PlacesBefore, 65 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 958 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): 1489, Positive cache size: 1401, Positive conditional cache size: 1401, Positive unconditional cache size: 0, Negative cache size: 88, Negative conditional cache size: 88, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1220.8ms, 73 PlacesBefore, 73 PlacesAfterwards, 110 TransitionsBefore, 110 TransitionsAfterwards, 1078 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): 1489, Positive cache size: 1401, Positive conditional cache size: 1401, Positive unconditional cache size: 0, Negative cache size: 88, Negative conditional cache size: 88, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 374.1ms, 82 PlacesBefore, 80 PlacesAfterwards, 97 TransitionsBefore, 97 TransitionsAfterwards, 600 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): 1489, Positive cache size: 1401, Positive conditional cache size: 1401, Positive unconditional cache size: 0, Negative cache size: 88, Negative conditional cache size: 88, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 143.0ms, 70 PlacesBefore, 68 PlacesAfterwards, 82 TransitionsBefore, 82 TransitionsAfterwards, 592 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): 1489, Positive cache size: 1401, Positive conditional cache size: 1401, Positive unconditional cache size: 0, Negative cache size: 88, Negative conditional cache size: 88, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 62 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): 1489, Positive cache size: 1401, Positive conditional cache size: 1401, Positive unconditional cache size: 0, Negative cache size: 88, Negative conditional cache size: 88, Negative unconditional cache size: 0 - 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, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 32662.7ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 10796.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14449.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 83 SDtfs, 79 SDslu, 47 SDs, 0 SdLazy, 552 SolverSat, 224 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 557.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 258.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1049occurred in iteration=9, InterpolantAutomatonStates: 67, 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: 35.3ms SsaConstructionTime, 274.5ms SatisfiabilityAnalysisTime, 845.8ms InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 857 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...