/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 06:52:33,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 06:52:33,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 06:52:33,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 06:52:33,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 06:52:33,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 06:52:33,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 06:52:33,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 06:52:33,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 06:52:33,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 06:52:33,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 06:52:33,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 06:52:33,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 06:52:33,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 06:52:33,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 06:52:33,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 06:52:33,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 06:52:33,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 06:52:33,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 06:52:33,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 06:52:33,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 06:52:33,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 06:52:33,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 06:52:33,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 06:52:33,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 06:52:33,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 06:52:34,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 06:52:34,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 06:52:34,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 06:52:34,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 06:52:34,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 06:52:34,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 06:52:34,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 06:52:34,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 06:52:34,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 06:52:34,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 06:52:34,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 06:52:34,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 06:52:34,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 06:52:34,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 06:52:34,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 06:52:34,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2021-06-11 06:52:34,035 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 06:52:34,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 06:52:34,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 06:52:34,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 06:52:34,039 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 06:52:34,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 06:52:34,040 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 06:52:34,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 06:52:34,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 06:52:34,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 06:52:34,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 06:52:34,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 06:52:34,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 06:52:34,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 06:52:34,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 06:52:34,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 06:52:34,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 06:52:34,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 06:52:34,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 06:52:34,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 06:52:34,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 06:52:34,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:52:34,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 06:52:34,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 06:52:34,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 06:52:34,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 06:52:34,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 06:52:34,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 06:52:34,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 06:52:34,043 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 06:52:34,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 06:52:34,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 06:52:34,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 06:52:34,391 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 06:52:34,391 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 06:52:34,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-06-11 06:52:34,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c10d99c8/f09026a5f0b04aafa5266151329ecccb/FLAG7bf8c28c6 [2021-06-11 06:52:34,936 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 06:52:34,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-06-11 06:52:34,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c10d99c8/f09026a5f0b04aafa5266151329ecccb/FLAG7bf8c28c6 [2021-06-11 06:52:35,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c10d99c8/f09026a5f0b04aafa5266151329ecccb [2021-06-11 06:52:35,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 06:52:35,267 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 06:52:35,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 06:52:35,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 06:52:35,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 06:52:35,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778aed12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35, skipping insertion in model container [2021-06-11 06:52:35,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 06:52:35,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 06:52:35,457 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.oepc.i[950,963] [2021-06-11 06:52:35,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:52:35,645 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 06:52:35,657 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.oepc.i[950,963] [2021-06-11 06:52:35,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:52:35,748 INFO L208 MainTranslator]: Completed translation [2021-06-11 06:52:35,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35 WrapperNode [2021-06-11 06:52:35,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 06:52:35,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 06:52:35,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 06:52:35,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 06:52:35,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 06:52:35,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 06:52:35,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 06:52:35,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 06:52:35,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (1/1) ... [2021-06-11 06:52:35,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 06:52:35,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 06:52:35,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 06:52:35,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 06:52:35,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:52:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 06:52:35,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 06:52:35,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 06:52:35,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 06:52:35,878 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 06:52:35,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 06:52:35,879 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 06:52:35,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 06:52:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 06:52:35,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 06:52:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-11 06:52:35,880 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-11 06:52:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 06:52:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 06:52:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 06:52:35,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 06:52:35,882 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 06:52:36,265 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 06:52:36,265 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 06:52:36,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:52:36 BoogieIcfgContainer [2021-06-11 06:52:36,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 06:52:36,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 06:52:36,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 06:52:36,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 06:52:36,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 06:52:35" (1/3) ... [2021-06-11 06:52:36,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5697d534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:52:36, skipping insertion in model container [2021-06-11 06:52:36,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:52:35" (2/3) ... [2021-06-11 06:52:36,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5697d534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:52:36, skipping insertion in model container [2021-06-11 06:52:36,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:52:36" (3/3) ... [2021-06-11 06:52:36,274 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2021-06-11 06:52:36,279 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 06:52:36,283 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 06:52:36,284 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 06:52:36,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,310 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,310 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,312 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,312 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,313 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,313 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,317 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,317 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,318 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,320 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,320 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,320 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,320 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,322 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,322 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,322 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,323 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,323 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,323 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,323 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,323 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,324 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,324 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,324 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,324 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,327 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,328 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,328 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,328 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,333 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,333 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,333 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,333 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,336 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,337 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,337 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,339 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,339 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,339 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:52:36,340 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 06:52:36,358 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-11 06:52:36,377 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 06:52:36,377 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 06:52:36,377 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 06:52:36,377 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 06:52:36,377 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 06:52:36,377 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 06:52:36,377 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 06:52:36,377 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 06:52:36,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-06-11 06:52:36,423 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-06-11 06:52:36,424 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:52:36,428 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. [2021-06-11 06:52:36,428 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-06-11 06:52:36,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-06-11 06:52:36,433 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:36,445 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 68 transitions, 148 flow [2021-06-11 06:52:36,449 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 68 transitions, 148 flow [2021-06-11 06:52:36,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 68 transitions, 148 flow [2021-06-11 06:52:36,473 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-06-11 06:52:36,473 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:52:36,474 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. [2021-06-11 06:52:36,477 INFO L151 LiptonReduction]: Number of co-enabled transitions 1250 [2021-06-11 06:52:36,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:36,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:36,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:36,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:36,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:36,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:36,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:36,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:36,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:36,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:36,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:36,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:36,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:36,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:36,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:36,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,060 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:52:37,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:37,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:52:37,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,288 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:52:37,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:37,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:52:37,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:52:37,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:37,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:52:37,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:52:37,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:37,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:52:37,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,786 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:52:37,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:37,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:52:37,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:37,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:37,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:38,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:38,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:38,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,138 INFO L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-06-11 06:52:38,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:38,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,280 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:52:38,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:38,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:52:38,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,386 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:52:38,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 06:52:38,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 06:52:38,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:38,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:38,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:38,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:52:38,897 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-06-11 06:52:38,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:52:38,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:38,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:38,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:52:39,113 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-11 06:52:39,321 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-11 06:52:39,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:39,403 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:52:39,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:39,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:39,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:52:39,429 INFO L163 LiptonReduction]: Checked pairs total: 2021 [2021-06-11 06:52:39,429 INFO L165 LiptonReduction]: Total number of compositions: 51 [2021-06-11 06:52:39,432 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3000 [2021-06-11 06:52:39,441 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-06-11 06:52:39,441 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:52:39,441 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:39,442 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:39,442 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:39,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:39,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1826545665, now seen corresponding path program 1 times [2021-06-11 06:52:39,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:39,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569935750] [2021-06-11 06:52:39,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:39,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:39,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:39,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569935750] [2021-06-11 06:52:39,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:39,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:52:39,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660864828] [2021-06-11 06:52:39,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-11 06:52:39,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:39,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-11 06:52:39,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-11 06:52:39,643 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 137 [2021-06-11 06:52:39,647 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:39,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 137 [2021-06-11 06:52:39,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:39,660 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-06-11 06:52:39,660 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:52:39,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 06:52:39,662 INFO L132 encePairwiseOnDemand]: 136/137 looper letters, 0 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2021-06-11 06:52:39,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 20 transitions, 52 flow [2021-06-11 06:52:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-11 06:52:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-11 06:52:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 259 transitions. [2021-06-11 06:52:39,682 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9452554744525548 [2021-06-11 06:52:39,685 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 259 transitions. [2021-06-11 06:52:39,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 259 transitions. [2021-06-11 06:52:39,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:39,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 259 transitions. [2021-06-11 06:52:39,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,701 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,703 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 54 flow. Second operand 2 states and 259 transitions. [2021-06-11 06:52:39,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 20 transitions, 52 flow [2021-06-11 06:52:39,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 48 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 06:52:39,706 INFO L241 Difference]: Finished difference. Result has 30 places, 20 transitions, 48 flow [2021-06-11 06:52:39,707 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=48, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2021-06-11 06:52:39,708 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, -3 predicate places. [2021-06-11 06:52:39,708 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:39,708 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 20 transitions, 48 flow [2021-06-11 06:52:39,708 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 20 transitions, 48 flow [2021-06-11 06:52:39,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 20 transitions, 48 flow [2021-06-11 06:52:39,712 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-06-11 06:52:39,712 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:52:39,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 06:52:39,713 INFO L151 LiptonReduction]: Number of co-enabled transitions 178 [2021-06-11 06:52:39,715 INFO L163 LiptonReduction]: Checked pairs total: 172 [2021-06-11 06:52:39,715 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:39,715 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 06:52:39,716 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 48 flow [2021-06-11 06:52:39,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 129.5) internal successors, (259), 2 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,717 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:39,717 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:39,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 06:52:39,717 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:39,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:39,718 INFO L82 PathProgramCache]: Analyzing trace with hash -788340671, now seen corresponding path program 1 times [2021-06-11 06:52:39,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:39,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861523843] [2021-06-11 06:52:39,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:39,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:39,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:39,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:39,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861523843] [2021-06-11 06:52:39,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:39,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:52:39,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613805657] [2021-06-11 06:52:39,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:52:39,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:39,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:52:39,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:52:39,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 137 [2021-06-11 06:52:39,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 48 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:39,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 137 [2021-06-11 06:52:39,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:39,879 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-06-11 06:52:39,879 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:52:39,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-06-11 06:52:39,880 INFO L132 encePairwiseOnDemand]: 134/137 looper letters, 1 selfloop transitions, 2 changer transitions 0/20 dead transitions. [2021-06-11 06:52:39,880 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 20 transitions, 54 flow [2021-06-11 06:52:39,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:52:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:52:39,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2021-06-11 06:52:39,882 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8637469586374696 [2021-06-11 06:52:39,882 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2021-06-11 06:52:39,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2021-06-11 06:52:39,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:39,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2021-06-11 06:52:39,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,887 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,887 INFO L185 Difference]: Start difference. First operand has 29 places, 20 transitions, 48 flow. Second operand 3 states and 355 transitions. [2021-06-11 06:52:39,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 20 transitions, 54 flow [2021-06-11 06:52:39,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 20 transitions, 54 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:52:39,888 INFO L241 Difference]: Finished difference. Result has 32 places, 20 transitions, 56 flow [2021-06-11 06:52:39,888 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2021-06-11 06:52:39,889 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2021-06-11 06:52:39,889 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:39,889 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 20 transitions, 56 flow [2021-06-11 06:52:39,889 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 20 transitions, 56 flow [2021-06-11 06:52:39,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 20 transitions, 56 flow [2021-06-11 06:52:39,892 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-06-11 06:52:39,892 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:52:39,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 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. [2021-06-11 06:52:39,893 INFO L151 LiptonReduction]: Number of co-enabled transitions 176 [2021-06-11 06:52:39,900 INFO L163 LiptonReduction]: Checked pairs total: 140 [2021-06-11 06:52:39,900 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:39,900 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-06-11 06:52:39,901 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 56 flow [2021-06-11 06:52:39,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,901 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:39,901 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:39,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 06:52:39,901 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:39,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:39,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1319309497, now seen corresponding path program 1 times [2021-06-11 06:52:39,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:39,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231662470] [2021-06-11 06:52:39,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:39,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:39,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:39,943 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 06:52:39,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:52:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:39,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231662470] [2021-06-11 06:52:39,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:39,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:52:39,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732632238] [2021-06-11 06:52:39,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:52:39,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:39,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:52:39,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:52:39,954 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 137 [2021-06-11 06:52:39,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:39,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:39,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 137 [2021-06-11 06:52:39,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:40,023 INFO L129 PetriNetUnfolder]: 120/279 cut-off events. [2021-06-11 06:52:40,024 INFO L130 PetriNetUnfolder]: For 54/117 co-relation queries the response was YES. [2021-06-11 06:52:40,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 279 events. 120/279 cut-off events. For 54/117 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1419 event pairs, 13 based on Foata normal form. 18/286 useless extension candidates. Maximal degree in co-relation 536. Up to 95 conditions per place. [2021-06-11 06:52:40,027 INFO L132 encePairwiseOnDemand]: 129/137 looper letters, 12 selfloop transitions, 13 changer transitions 0/37 dead transitions. [2021-06-11 06:52:40,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 151 flow [2021-06-11 06:52:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:52:40,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:52:40,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 522 transitions. [2021-06-11 06:52:40,029 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.762043795620438 [2021-06-11 06:52:40,029 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 522 transitions. [2021-06-11 06:52:40,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 522 transitions. [2021-06-11 06:52:40,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:40,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 522 transitions. [2021-06-11 06:52:40,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.4) internal successors, (522), 5 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) [2021-06-11 06:52:40,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,033 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,033 INFO L185 Difference]: Start difference. First operand has 32 places, 20 transitions, 56 flow. Second operand 5 states and 522 transitions. [2021-06-11 06:52:40,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 151 flow [2021-06-11 06:52:40,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 37 transitions, 141 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:52:40,034 INFO L241 Difference]: Finished difference. Result has 38 places, 31 transitions, 152 flow [2021-06-11 06:52:40,034 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2021-06-11 06:52:40,035 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2021-06-11 06:52:40,035 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:40,035 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 31 transitions, 152 flow [2021-06-11 06:52:40,035 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 31 transitions, 152 flow [2021-06-11 06:52:40,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 31 transitions, 152 flow [2021-06-11 06:52:40,054 INFO L129 PetriNetUnfolder]: 91/238 cut-off events. [2021-06-11 06:52:40,054 INFO L130 PetriNetUnfolder]: For 144/204 co-relation queries the response was YES. [2021-06-11 06:52:40,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 238 events. 91/238 cut-off events. For 144/204 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1262 event pairs, 11 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 621. Up to 98 conditions per place. [2021-06-11 06:52:40,058 INFO L151 LiptonReduction]: Number of co-enabled transitions 268 [2021-06-11 06:52:40,061 INFO L163 LiptonReduction]: Checked pairs total: 21 [2021-06-11 06:52:40,061 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:40,062 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-06-11 06:52:40,062 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 152 flow [2021-06-11 06:52:40,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,063 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:40,063 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:40,063 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 06:52:40,063 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:40,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:40,063 INFO L82 PathProgramCache]: Analyzing trace with hash -2062088510, now seen corresponding path program 1 times [2021-06-11 06:52:40,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:40,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387344516] [2021-06-11 06:52:40,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:40,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:40,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:40,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:40,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:40,109 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 06:52:40,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:52:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:40,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387344516] [2021-06-11 06:52:40,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:40,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:52:40,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394007082] [2021-06-11 06:52:40,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:52:40,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:40,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:52:40,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:52:40,121 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 137 [2021-06-11 06:52:40,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 152 flow. Second operand has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:40,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 137 [2021-06-11 06:52:40,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:40,190 INFO L129 PetriNetUnfolder]: 96/262 cut-off events. [2021-06-11 06:52:40,190 INFO L130 PetriNetUnfolder]: For 377/840 co-relation queries the response was YES. [2021-06-11 06:52:40,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 262 events. 96/262 cut-off events. For 377/840 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1454 event pairs, 12 based on Foata normal form. 25/279 useless extension candidates. Maximal degree in co-relation 844. Up to 103 conditions per place. [2021-06-11 06:52:40,193 INFO L132 encePairwiseOnDemand]: 129/137 looper letters, 14 selfloop transitions, 9 changer transitions 8/43 dead transitions. [2021-06-11 06:52:40,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 287 flow [2021-06-11 06:52:40,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:52:40,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:52:40,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 517 transitions. [2021-06-11 06:52:40,196 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7547445255474453 [2021-06-11 06:52:40,196 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 517 transitions. [2021-06-11 06:52:40,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 517 transitions. [2021-06-11 06:52:40,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:40,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 517 transitions. [2021-06-11 06:52:40,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,200 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,200 INFO L185 Difference]: Start difference. First operand has 38 places, 31 transitions, 152 flow. Second operand 5 states and 517 transitions. [2021-06-11 06:52:40,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 287 flow [2021-06-11 06:52:40,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 43 transitions, 287 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:52:40,204 INFO L241 Difference]: Finished difference. Result has 45 places, 29 transitions, 176 flow [2021-06-11 06:52:40,204 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=176, PETRI_PLACES=45, PETRI_TRANSITIONS=29} [2021-06-11 06:52:40,204 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2021-06-11 06:52:40,204 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:40,205 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 29 transitions, 176 flow [2021-06-11 06:52:40,205 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 29 transitions, 176 flow [2021-06-11 06:52:40,206 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 29 transitions, 176 flow [2021-06-11 06:52:40,217 INFO L129 PetriNetUnfolder]: 40/124 cut-off events. [2021-06-11 06:52:40,218 INFO L130 PetriNetUnfolder]: For 206/246 co-relation queries the response was YES. [2021-06-11 06:52:40,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 124 events. 40/124 cut-off events. For 206/246 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 555 event pairs, 12 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 403. Up to 69 conditions per place. [2021-06-11 06:52:40,220 INFO L151 LiptonReduction]: Number of co-enabled transitions 218 [2021-06-11 06:52:40,225 INFO L163 LiptonReduction]: Checked pairs total: 19 [2021-06-11 06:52:40,225 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:40,225 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-06-11 06:52:40,228 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 29 transitions, 176 flow [2021-06-11 06:52:40,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,228 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:40,228 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:40,228 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 06:52:40,228 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:40,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:40,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1518432788, now seen corresponding path program 1 times [2021-06-11 06:52:40,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:40,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545239275] [2021-06-11 06:52:40,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:40,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:40,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:40,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:40,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545239275] [2021-06-11 06:52:40,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:40,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:52:40,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340839478] [2021-06-11 06:52:40,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:52:40,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:40,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:52:40,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:52:40,301 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 137 [2021-06-11 06:52:40,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 29 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:40,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 137 [2021-06-11 06:52:40,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:40,330 INFO L129 PetriNetUnfolder]: 27/93 cut-off events. [2021-06-11 06:52:40,330 INFO L130 PetriNetUnfolder]: For 250/298 co-relation queries the response was YES. [2021-06-11 06:52:40,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 93 events. 27/93 cut-off events. For 250/298 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 357 event pairs, 8 based on Foata normal form. 3/93 useless extension candidates. Maximal degree in co-relation 342. Up to 50 conditions per place. [2021-06-11 06:52:40,331 INFO L132 encePairwiseOnDemand]: 133/137 looper letters, 9 selfloop transitions, 5 changer transitions 0/32 dead transitions. [2021-06-11 06:52:40,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 32 transitions, 225 flow [2021-06-11 06:52:40,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:52:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:52:40,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2021-06-11 06:52:40,333 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8613138686131386 [2021-06-11 06:52:40,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2021-06-11 06:52:40,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2021-06-11 06:52:40,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:40,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2021-06-11 06:52:40,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,336 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,336 INFO L185 Difference]: Start difference. First operand has 45 places, 29 transitions, 176 flow. Second operand 3 states and 354 transitions. [2021-06-11 06:52:40,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 32 transitions, 225 flow [2021-06-11 06:52:40,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 32 transitions, 178 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-06-11 06:52:40,342 INFO L241 Difference]: Finished difference. Result has 41 places, 31 transitions, 165 flow [2021-06-11 06:52:40,342 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2021-06-11 06:52:40,342 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2021-06-11 06:52:40,342 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:40,342 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 31 transitions, 165 flow [2021-06-11 06:52:40,342 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 31 transitions, 165 flow [2021-06-11 06:52:40,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 31 transitions, 165 flow [2021-06-11 06:52:40,353 INFO L129 PetriNetUnfolder]: 27/94 cut-off events. [2021-06-11 06:52:40,353 INFO L130 PetriNetUnfolder]: For 95/110 co-relation queries the response was YES. [2021-06-11 06:52:40,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 94 events. 27/94 cut-off events. For 95/110 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 382 event pairs, 7 based on Foata normal form. 2/93 useless extension candidates. Maximal degree in co-relation 269. Up to 50 conditions per place. [2021-06-11 06:52:40,354 INFO L151 LiptonReduction]: Number of co-enabled transitions 230 [2021-06-11 06:52:40,357 INFO L163 LiptonReduction]: Checked pairs total: 43 [2021-06-11 06:52:40,357 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:40,357 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 06:52:40,359 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 165 flow [2021-06-11 06:52:40,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,360 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:40,360 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:40,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 06:52:40,360 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:40,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:40,360 INFO L82 PathProgramCache]: Analyzing trace with hash -605861128, now seen corresponding path program 1 times [2021-06-11 06:52:40,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:40,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670115668] [2021-06-11 06:52:40,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:40,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:40,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:40,411 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 06:52:40,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:52:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:40,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670115668] [2021-06-11 06:52:40,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:40,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:52:40,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659670532] [2021-06-11 06:52:40,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:52:40,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:40,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:52:40,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:52:40,423 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 137 [2021-06-11 06:52:40,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:40,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 137 [2021-06-11 06:52:40,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:40,449 INFO L129 PetriNetUnfolder]: 24/86 cut-off events. [2021-06-11 06:52:40,449 INFO L130 PetriNetUnfolder]: For 140/198 co-relation queries the response was YES. [2021-06-11 06:52:40,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 86 events. 24/86 cut-off events. For 140/198 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 332 event pairs, 8 based on Foata normal form. 8/92 useless extension candidates. Maximal degree in co-relation 298. Up to 45 conditions per place. [2021-06-11 06:52:40,450 INFO L132 encePairwiseOnDemand]: 131/137 looper letters, 13 selfloop transitions, 9 changer transitions 0/36 dead transitions. [2021-06-11 06:52:40,450 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 247 flow [2021-06-11 06:52:40,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:52:40,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:52:40,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 425 transitions. [2021-06-11 06:52:40,453 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7755474452554745 [2021-06-11 06:52:40,453 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 425 transitions. [2021-06-11 06:52:40,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 425 transitions. [2021-06-11 06:52:40,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:40,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 425 transitions. [2021-06-11 06:52:40,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,456 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,456 INFO L185 Difference]: Start difference. First operand has 41 places, 31 transitions, 165 flow. Second operand 4 states and 425 transitions. [2021-06-11 06:52:40,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 247 flow [2021-06-11 06:52:40,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 36 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:52:40,458 INFO L241 Difference]: Finished difference. Result has 46 places, 34 transitions, 226 flow [2021-06-11 06:52:40,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2021-06-11 06:52:40,458 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 13 predicate places. [2021-06-11 06:52:40,458 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:40,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 34 transitions, 226 flow [2021-06-11 06:52:40,459 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 34 transitions, 226 flow [2021-06-11 06:52:40,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 34 transitions, 226 flow [2021-06-11 06:52:40,466 INFO L129 PetriNetUnfolder]: 24/87 cut-off events. [2021-06-11 06:52:40,467 INFO L130 PetriNetUnfolder]: For 159/170 co-relation queries the response was YES. [2021-06-11 06:52:40,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 87 events. 24/87 cut-off events. For 159/170 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 353 event pairs, 5 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 282. Up to 45 conditions per place. [2021-06-11 06:52:40,468 INFO L151 LiptonReduction]: Number of co-enabled transitions 250 [2021-06-11 06:52:40,471 INFO L163 LiptonReduction]: Checked pairs total: 49 [2021-06-11 06:52:40,471 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:40,471 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 06:52:40,472 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 226 flow [2021-06-11 06:52:40,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,472 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:40,472 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:40,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 06:52:40,472 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:40,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:40,473 INFO L82 PathProgramCache]: Analyzing trace with hash 2016203871, now seen corresponding path program 1 times [2021-06-11 06:52:40,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:40,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409530400] [2021-06-11 06:52:40,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:40,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:40,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:40,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:40,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:40,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409530400] [2021-06-11 06:52:40,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:40,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:52:40,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324032338] [2021-06-11 06:52:40,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:52:40,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:40,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:52:40,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:52:40,504 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2021-06-11 06:52:40,504 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,504 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:40,504 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2021-06-11 06:52:40,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:40,529 INFO L129 PetriNetUnfolder]: 24/101 cut-off events. [2021-06-11 06:52:40,530 INFO L130 PetriNetUnfolder]: For 311/331 co-relation queries the response was YES. [2021-06-11 06:52:40,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 101 events. 24/101 cut-off events. For 311/331 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 464 event pairs, 11 based on Foata normal form. 7/105 useless extension candidates. Maximal degree in co-relation 362. Up to 52 conditions per place. [2021-06-11 06:52:40,530 INFO L132 encePairwiseOnDemand]: 132/137 looper letters, 5 selfloop transitions, 7 changer transitions 7/37 dead transitions. [2021-06-11 06:52:40,531 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 294 flow [2021-06-11 06:52:40,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:52:40,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:52:40,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 451 transitions. [2021-06-11 06:52:40,532 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.822992700729927 [2021-06-11 06:52:40,532 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 451 transitions. [2021-06-11 06:52:40,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 451 transitions. [2021-06-11 06:52:40,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:40,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 451 transitions. [2021-06-11 06:52:40,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,560 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,561 INFO L185 Difference]: Start difference. First operand has 46 places, 34 transitions, 226 flow. Second operand 4 states and 451 transitions. [2021-06-11 06:52:40,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 294 flow [2021-06-11 06:52:40,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 37 transitions, 288 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:52:40,563 INFO L241 Difference]: Finished difference. Result has 49 places, 30 transitions, 204 flow [2021-06-11 06:52:40,563 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=49, PETRI_TRANSITIONS=30} [2021-06-11 06:52:40,563 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2021-06-11 06:52:40,563 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:40,563 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 30 transitions, 204 flow [2021-06-11 06:52:40,564 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 30 transitions, 204 flow [2021-06-11 06:52:40,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 30 transitions, 204 flow [2021-06-11 06:52:40,570 INFO L129 PetriNetUnfolder]: 14/63 cut-off events. [2021-06-11 06:52:40,570 INFO L130 PetriNetUnfolder]: For 139/141 co-relation queries the response was YES. [2021-06-11 06:52:40,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 63 events. 14/63 cut-off events. For 139/141 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 212 event pairs, 5 based on Foata normal form. 1/64 useless extension candidates. Maximal degree in co-relation 223. Up to 32 conditions per place. [2021-06-11 06:52:40,571 INFO L151 LiptonReduction]: Number of co-enabled transitions 166 [2021-06-11 06:52:40,573 INFO L163 LiptonReduction]: Checked pairs total: 42 [2021-06-11 06:52:40,573 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:40,573 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 06:52:40,574 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 30 transitions, 204 flow [2021-06-11 06:52:40,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,574 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:40,574 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:40,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 06:52:40,574 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:40,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:40,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1601851511, now seen corresponding path program 2 times [2021-06-11 06:52:40,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:40,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173579809] [2021-06-11 06:52:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:40,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:40,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:40,609 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-06-11 06:52:40,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 06:52:40,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:40,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173579809] [2021-06-11 06:52:40,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:40,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:52:40,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233318731] [2021-06-11 06:52:40,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:52:40,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:40,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:52:40,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:52:40,620 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2021-06-11 06:52:40,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:40,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2021-06-11 06:52:40,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:40,694 INFO L129 PetriNetUnfolder]: 289/529 cut-off events. [2021-06-11 06:52:40,694 INFO L130 PetriNetUnfolder]: For 1893/2141 co-relation queries the response was YES. [2021-06-11 06:52:40,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1478 conditions, 529 events. 289/529 cut-off events. For 1893/2141 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 2910 event pairs, 134 based on Foata normal form. 44/512 useless extension candidates. Maximal degree in co-relation 1457. Up to 357 conditions per place. [2021-06-11 06:52:40,698 INFO L132 encePairwiseOnDemand]: 130/137 looper letters, 10 selfloop transitions, 10 changer transitions 0/43 dead transitions. [2021-06-11 06:52:40,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 270 flow [2021-06-11 06:52:40,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:52:40,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:52:40,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 542 transitions. [2021-06-11 06:52:40,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7912408759124088 [2021-06-11 06:52:40,700 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 542 transitions. [2021-06-11 06:52:40,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 542 transitions. [2021-06-11 06:52:40,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:40,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 542 transitions. [2021-06-11 06:52:40,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,703 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,704 INFO L185 Difference]: Start difference. First operand has 49 places, 30 transitions, 204 flow. Second operand 5 states and 542 transitions. [2021-06-11 06:52:40,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 270 flow [2021-06-11 06:52:40,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 235 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-06-11 06:52:40,707 INFO L241 Difference]: Finished difference. Result has 50 places, 39 transitions, 244 flow [2021-06-11 06:52:40,707 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=244, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2021-06-11 06:52:40,707 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 17 predicate places. [2021-06-11 06:52:40,707 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:40,708 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 39 transitions, 244 flow [2021-06-11 06:52:40,708 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 39 transitions, 244 flow [2021-06-11 06:52:40,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 39 transitions, 244 flow [2021-06-11 06:52:40,749 INFO L129 PetriNetUnfolder]: 287/514 cut-off events. [2021-06-11 06:52:40,750 INFO L130 PetriNetUnfolder]: For 1378/1616 co-relation queries the response was YES. [2021-06-11 06:52:40,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1773 conditions, 514 events. 287/514 cut-off events. For 1378/1616 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 2794 event pairs, 132 based on Foata normal form. 5/467 useless extension candidates. Maximal degree in co-relation 1755. Up to 391 conditions per place. [2021-06-11 06:52:40,756 INFO L151 LiptonReduction]: Number of co-enabled transitions 294 [2021-06-11 06:52:40,761 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:52:40,761 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:40,761 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-06-11 06:52:40,763 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 244 flow [2021-06-11 06:52:40,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,763 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:40,764 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:40,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 06:52:40,764 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:40,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:40,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1401981098, now seen corresponding path program 1 times [2021-06-11 06:52:40,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:40,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489722940] [2021-06-11 06:52:40,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:40,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:40,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:40,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:40,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:40,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:40,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489722940] [2021-06-11 06:52:40,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:40,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:52:40,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133747728] [2021-06-11 06:52:40,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:52:40,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:40,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:52:40,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:52:40,787 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 137 [2021-06-11 06:52:40,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:40,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 137 [2021-06-11 06:52:40,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:40,841 INFO L129 PetriNetUnfolder]: 312/577 cut-off events. [2021-06-11 06:52:40,842 INFO L130 PetriNetUnfolder]: For 2441/2948 co-relation queries the response was YES. [2021-06-11 06:52:40,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1947 conditions, 577 events. 312/577 cut-off events. For 2441/2948 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 3278 event pairs, 152 based on Foata normal form. 32/526 useless extension candidates. Maximal degree in co-relation 1927. Up to 473 conditions per place. [2021-06-11 06:52:40,846 INFO L132 encePairwiseOnDemand]: 134/137 looper letters, 7 selfloop transitions, 5 changer transitions 0/39 dead transitions. [2021-06-11 06:52:40,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 39 transitions, 268 flow [2021-06-11 06:52:40,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:52:40,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:52:40,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2021-06-11 06:52:40,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8588807785888077 [2021-06-11 06:52:40,848 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2021-06-11 06:52:40,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2021-06-11 06:52:40,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:40,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2021-06-11 06:52:40,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,850 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,850 INFO L185 Difference]: Start difference. First operand has 50 places, 39 transitions, 244 flow. Second operand 3 states and 353 transitions. [2021-06-11 06:52:40,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 39 transitions, 268 flow [2021-06-11 06:52:40,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 39 transitions, 263 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:52:40,854 INFO L241 Difference]: Finished difference. Result has 52 places, 39 transitions, 256 flow [2021-06-11 06:52:40,854 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=52, PETRI_TRANSITIONS=39} [2021-06-11 06:52:40,854 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 19 predicate places. [2021-06-11 06:52:40,854 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:40,854 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 39 transitions, 256 flow [2021-06-11 06:52:40,854 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 39 transitions, 256 flow [2021-06-11 06:52:40,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 39 transitions, 256 flow [2021-06-11 06:52:40,894 INFO L129 PetriNetUnfolder]: 306/558 cut-off events. [2021-06-11 06:52:40,894 INFO L130 PetriNetUnfolder]: For 1454/1791 co-relation queries the response was YES. [2021-06-11 06:52:40,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1877 conditions, 558 events. 306/558 cut-off events. For 1454/1791 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 3163 event pairs, 154 based on Foata normal form. 5/495 useless extension candidates. Maximal degree in co-relation 1858. Up to 456 conditions per place. [2021-06-11 06:52:40,901 INFO L151 LiptonReduction]: Number of co-enabled transitions 294 [2021-06-11 06:52:40,903 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:52:40,904 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:40,904 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-06-11 06:52:40,904 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 256 flow [2021-06-11 06:52:40,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,904 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:40,905 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:40,905 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 06:52:40,905 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:40,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:40,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1005992877, now seen corresponding path program 1 times [2021-06-11 06:52:40,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:40,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375556736] [2021-06-11 06:52:40,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:40,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:40,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:40,960 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 06:52:40,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 06:52:40,967 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:52:40,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:40,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:40,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375556736] [2021-06-11 06:52:40,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:40,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:52:40,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215557111] [2021-06-11 06:52:40,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:52:40,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:40,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:52:40,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:52:40,978 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2021-06-11 06:52:40,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 256 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:40,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:40,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2021-06-11 06:52:40,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:41,084 INFO L129 PetriNetUnfolder]: 302/598 cut-off events. [2021-06-11 06:52:41,085 INFO L130 PetriNetUnfolder]: For 2344/4094 co-relation queries the response was YES. [2021-06-11 06:52:41,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2447 conditions, 598 events. 302/598 cut-off events. For 2344/4094 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 3617 event pairs, 47 based on Foata normal form. 175/713 useless extension candidates. Maximal degree in co-relation 2426. Up to 515 conditions per place. [2021-06-11 06:52:41,089 INFO L132 encePairwiseOnDemand]: 130/137 looper letters, 10 selfloop transitions, 19 changer transitions 0/52 dead transitions. [2021-06-11 06:52:41,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 52 transitions, 390 flow [2021-06-11 06:52:41,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 06:52:41,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 06:52:41,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 759 transitions. [2021-06-11 06:52:41,092 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7914494264859229 [2021-06-11 06:52:41,092 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 759 transitions. [2021-06-11 06:52:41,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 759 transitions. [2021-06-11 06:52:41,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:41,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 759 transitions. [2021-06-11 06:52:41,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,096 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 137.0) internal successors, (1096), 8 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,096 INFO L185 Difference]: Start difference. First operand has 52 places, 39 transitions, 256 flow. Second operand 7 states and 759 transitions. [2021-06-11 06:52:41,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 52 transitions, 390 flow [2021-06-11 06:52:41,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 52 transitions, 383 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-11 06:52:41,100 INFO L241 Difference]: Finished difference. Result has 60 places, 48 transitions, 383 flow [2021-06-11 06:52:41,101 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=383, PETRI_PLACES=60, PETRI_TRANSITIONS=48} [2021-06-11 06:52:41,101 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 27 predicate places. [2021-06-11 06:52:41,101 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:41,101 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 48 transitions, 383 flow [2021-06-11 06:52:41,101 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 48 transitions, 383 flow [2021-06-11 06:52:41,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 383 flow [2021-06-11 06:52:41,147 INFO L129 PetriNetUnfolder]: 281/555 cut-off events. [2021-06-11 06:52:41,147 INFO L130 PetriNetUnfolder]: For 2444/3432 co-relation queries the response was YES. [2021-06-11 06:52:41,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2716 conditions, 555 events. 281/555 cut-off events. For 2444/3432 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 3485 event pairs, 46 based on Foata normal form. 12/514 useless extension candidates. Maximal degree in co-relation 2693. Up to 474 conditions per place. [2021-06-11 06:52:41,155 INFO L151 LiptonReduction]: Number of co-enabled transitions 422 [2021-06-11 06:52:41,159 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:52:41,159 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:41,159 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-06-11 06:52:41,160 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 383 flow [2021-06-11 06:52:41,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,160 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:41,160 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:41,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 06:52:41,160 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:41,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:41,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1120646162, now seen corresponding path program 1 times [2021-06-11 06:52:41,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:41,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150878400] [2021-06-11 06:52:41,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:41,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:41,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:41,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:41,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:41,192 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 06:52:41,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 06:52:41,198 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:52:41,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:41,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:41,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150878400] [2021-06-11 06:52:41,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:41,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 06:52:41,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057746029] [2021-06-11 06:52:41,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 06:52:41,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:41,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 06:52:41,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 06:52:41,208 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2021-06-11 06:52:41,208 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,208 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:41,209 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2021-06-11 06:52:41,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:41,332 INFO L129 PetriNetUnfolder]: 269/560 cut-off events. [2021-06-11 06:52:41,332 INFO L130 PetriNetUnfolder]: For 3519/7795 co-relation queries the response was YES. [2021-06-11 06:52:41,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3172 conditions, 560 events. 269/560 cut-off events. For 3519/7795 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 3488 event pairs, 6 based on Foata normal form. 305/808 useless extension candidates. Maximal degree in co-relation 3147. Up to 499 conditions per place. [2021-06-11 06:52:41,337 INFO L132 encePairwiseOnDemand]: 130/137 looper letters, 6 selfloop transitions, 28 changer transitions 4/61 dead transitions. [2021-06-11 06:52:41,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 61 transitions, 585 flow [2021-06-11 06:52:41,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 06:52:41,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 06:52:41,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 976 transitions. [2021-06-11 06:52:41,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7915652879156528 [2021-06-11 06:52:41,340 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 976 transitions. [2021-06-11 06:52:41,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 976 transitions. [2021-06-11 06:52:41,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:41,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 976 transitions. [2021-06-11 06:52:41,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 108.44444444444444) internal successors, (976), 9 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,345 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,345 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 383 flow. Second operand 9 states and 976 transitions. [2021-06-11 06:52:41,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 61 transitions, 585 flow [2021-06-11 06:52:41,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 61 transitions, 535 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-06-11 06:52:41,354 INFO L241 Difference]: Finished difference. Result has 68 places, 57 transitions, 511 flow [2021-06-11 06:52:41,354 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=511, PETRI_PLACES=68, PETRI_TRANSITIONS=57} [2021-06-11 06:52:41,354 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 35 predicate places. [2021-06-11 06:52:41,354 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:41,354 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 57 transitions, 511 flow [2021-06-11 06:52:41,355 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 57 transitions, 511 flow [2021-06-11 06:52:41,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 57 transitions, 511 flow [2021-06-11 06:52:41,397 INFO L129 PetriNetUnfolder]: 225/484 cut-off events. [2021-06-11 06:52:41,397 INFO L130 PetriNetUnfolder]: For 3011/3352 co-relation queries the response was YES. [2021-06-11 06:52:41,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 484 events. 225/484 cut-off events. For 3011/3352 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 3139 event pairs, 7 based on Foata normal form. 6/445 useless extension candidates. Maximal degree in co-relation 2567. Up to 314 conditions per place. [2021-06-11 06:52:41,404 INFO L151 LiptonReduction]: Number of co-enabled transitions 478 [2021-06-11 06:52:41,409 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:52:41,409 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:41,409 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-06-11 06:52:41,410 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 57 transitions, 511 flow [2021-06-11 06:52:41,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,410 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:41,410 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:41,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 06:52:41,410 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:41,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:41,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1912555311, now seen corresponding path program 1 times [2021-06-11 06:52:41,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:41,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700052672] [2021-06-11 06:52:41,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:41,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:41,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:41,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:41,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:41,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:41,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:41,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:41,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700052672] [2021-06-11 06:52:41,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:41,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:52:41,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386097218] [2021-06-11 06:52:41,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:52:41,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:41,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:52:41,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:52:41,438 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 137 [2021-06-11 06:52:41,438 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 511 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,439 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:41,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 137 [2021-06-11 06:52:41,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:41,541 INFO L129 PetriNetUnfolder]: 320/669 cut-off events. [2021-06-11 06:52:41,542 INFO L130 PetriNetUnfolder]: For 4837/5635 co-relation queries the response was YES. [2021-06-11 06:52:41,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3637 conditions, 669 events. 320/669 cut-off events. For 4837/5635 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 4410 event pairs, 8 based on Foata normal form. 16/609 useless extension candidates. Maximal degree in co-relation 3609. Up to 454 conditions per place. [2021-06-11 06:52:41,546 INFO L132 encePairwiseOnDemand]: 133/137 looper letters, 6 selfloop transitions, 6 changer transitions 0/57 dead transitions. [2021-06-11 06:52:41,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 57 transitions, 535 flow [2021-06-11 06:52:41,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:52:41,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:52:41,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 559 transitions. [2021-06-11 06:52:41,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8160583941605839 [2021-06-11 06:52:41,548 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 559 transitions. [2021-06-11 06:52:41,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 559 transitions. [2021-06-11 06:52:41,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:41,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 559 transitions. [2021-06-11 06:52:41,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,552 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,552 INFO L185 Difference]: Start difference. First operand has 68 places, 57 transitions, 511 flow. Second operand 5 states and 559 transitions. [2021-06-11 06:52:41,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 57 transitions, 535 flow [2021-06-11 06:52:41,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 57 transitions, 438 flow, removed 34 selfloop flow, removed 4 redundant places. [2021-06-11 06:52:41,591 INFO L241 Difference]: Finished difference. Result has 69 places, 57 transitions, 429 flow [2021-06-11 06:52:41,592 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=69, PETRI_TRANSITIONS=57} [2021-06-11 06:52:41,592 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 36 predicate places. [2021-06-11 06:52:41,592 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:41,592 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 57 transitions, 429 flow [2021-06-11 06:52:41,592 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 57 transitions, 429 flow [2021-06-11 06:52:41,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 57 transitions, 429 flow [2021-06-11 06:52:41,642 INFO L129 PetriNetUnfolder]: 317/659 cut-off events. [2021-06-11 06:52:41,642 INFO L130 PetriNetUnfolder]: For 2025/2126 co-relation queries the response was YES. [2021-06-11 06:52:41,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2417 conditions, 659 events. 317/659 cut-off events. For 2025/2126 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 4595 event pairs, 10 based on Foata normal form. 7/593 useless extension candidates. Maximal degree in co-relation 2390. Up to 206 conditions per place. [2021-06-11 06:52:41,650 INFO L151 LiptonReduction]: Number of co-enabled transitions 478 [2021-06-11 06:52:41,658 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:52:41,658 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:41,658 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-06-11 06:52:41,660 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 57 transitions, 429 flow [2021-06-11 06:52:41,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,660 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:41,661 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:52:41,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-11 06:52:41,661 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:41,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:41,661 INFO L82 PathProgramCache]: Analyzing trace with hash -222357123, now seen corresponding path program 2 times [2021-06-11 06:52:41,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:41,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929193855] [2021-06-11 06:52:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:41,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:41,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:41,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:41,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:41,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:41,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:41,730 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 06:52:41,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 06:52:41,737 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 06:52:41,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:52:41,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:41,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929193855] [2021-06-11 06:52:41,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:41,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 06:52:41,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83138892] [2021-06-11 06:52:41,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 06:52:41,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:41,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 06:52:41,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-06-11 06:52:41,747 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2021-06-11 06:52:41,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 57 transitions, 429 flow. Second operand has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:41,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2021-06-11 06:52:41,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:41,906 INFO L129 PetriNetUnfolder]: 310/656 cut-off events. [2021-06-11 06:52:41,906 INFO L130 PetriNetUnfolder]: For 2543/4367 co-relation queries the response was YES. [2021-06-11 06:52:41,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2947 conditions, 656 events. 310/656 cut-off events. For 2543/4367 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 4376 event pairs, 1 based on Foata normal form. 358/940 useless extension candidates. Maximal degree in co-relation 2918. Up to 220 conditions per place. [2021-06-11 06:52:41,910 INFO L132 encePairwiseOnDemand]: 130/137 looper letters, 2 selfloop transitions, 30 changer transitions 15/62 dead transitions. [2021-06-11 06:52:41,910 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 62 transitions, 563 flow [2021-06-11 06:52:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-11 06:52:41,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-11 06:52:41,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1185 transitions. [2021-06-11 06:52:41,914 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7863304578633046 [2021-06-11 06:52:41,914 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1185 transitions. [2021-06-11 06:52:41,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1185 transitions. [2021-06-11 06:52:41,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:41,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1185 transitions. [2021-06-11 06:52:41,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 107.72727272727273) internal successors, (1185), 11 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,920 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 137.0) internal successors, (1644), 12 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,920 INFO L185 Difference]: Start difference. First operand has 69 places, 57 transitions, 429 flow. Second operand 11 states and 1185 transitions. [2021-06-11 06:52:41,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 62 transitions, 563 flow [2021-06-11 06:52:41,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 62 transitions, 549 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 06:52:41,943 INFO L241 Difference]: Finished difference. Result has 79 places, 47 transitions, 417 flow [2021-06-11 06:52:41,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=417, PETRI_PLACES=79, PETRI_TRANSITIONS=47} [2021-06-11 06:52:41,943 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 46 predicate places. [2021-06-11 06:52:41,943 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:41,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 47 transitions, 417 flow [2021-06-11 06:52:41,944 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 47 transitions, 417 flow [2021-06-11 06:52:41,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 47 transitions, 417 flow [2021-06-11 06:52:41,961 INFO L129 PetriNetUnfolder]: 74/198 cut-off events. [2021-06-11 06:52:41,961 INFO L130 PetriNetUnfolder]: For 908/987 co-relation queries the response was YES. [2021-06-11 06:52:41,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 198 events. 74/198 cut-off events. For 908/987 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1027 event pairs, 1 based on Foata normal form. 3/186 useless extension candidates. Maximal degree in co-relation 867. Up to 55 conditions per place. [2021-06-11 06:52:41,963 INFO L151 LiptonReduction]: Number of co-enabled transitions 252 [2021-06-11 06:52:41,968 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:52:41,968 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:41,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-06-11 06:52:41,968 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 47 transitions, 417 flow [2021-06-11 06:52:41,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:41,969 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:52:41,969 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] [2021-06-11 06:52:41,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-11 06:52:41,969 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:52:41,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:52:41,969 INFO L82 PathProgramCache]: Analyzing trace with hash 596458338, now seen corresponding path program 1 times [2021-06-11 06:52:41,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:52:41,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130819662] [2021-06-11 06:52:41,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:52:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:52:41,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:41,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:52:41,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:52:41,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:52:41,996 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 06:52:41,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:52:42,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:52:42,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130819662] [2021-06-11 06:52:42,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:52:42,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:52:42,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561046354] [2021-06-11 06:52:42,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:52:42,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:52:42,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:52:42,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:52:42,010 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 137 [2021-06-11 06:52:42,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 47 transitions, 417 flow. Second operand has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:42,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:52:42,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 137 [2021-06-11 06:52:42,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:52:42,051 INFO L129 PetriNetUnfolder]: 99/252 cut-off events. [2021-06-11 06:52:42,051 INFO L130 PetriNetUnfolder]: For 1139/1274 co-relation queries the response was YES. [2021-06-11 06:52:42,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 252 events. 99/252 cut-off events. For 1139/1274 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1376 event pairs, 0 based on Foata normal form. 5/233 useless extension candidates. Maximal degree in co-relation 1124. Up to 75 conditions per place. [2021-06-11 06:52:42,052 INFO L132 encePairwiseOnDemand]: 129/137 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2021-06-11 06:52:42,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 47 transitions, 415 flow [2021-06-11 06:52:42,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:52:42,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:52:42,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 505 transitions. [2021-06-11 06:52:42,054 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7372262773722628 [2021-06-11 06:52:42,054 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 505 transitions. [2021-06-11 06:52:42,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 505 transitions. [2021-06-11 06:52:42,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:52:42,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 505 transitions. [2021-06-11 06:52:42,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:42,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:42,057 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:42,057 INFO L185 Difference]: Start difference. First operand has 76 places, 47 transitions, 417 flow. Second operand 5 states and 505 transitions. [2021-06-11 06:52:42,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 47 transitions, 415 flow [2021-06-11 06:52:42,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 258 flow, removed 23 selfloop flow, removed 25 redundant places. [2021-06-11 06:52:42,065 INFO L241 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2021-06-11 06:52:42,065 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2021-06-11 06:52:42,066 INFO L343 CegarLoopForPetriNet]: 33 programPoint places, 21 predicate places. [2021-06-11 06:52:42,066 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:52:42,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 0 transitions, 0 flow [2021-06-11 06:52:42,066 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 0 transitions, 0 flow [2021-06-11 06:52:42,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 06:52:42,066 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 06:52:42,066 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:52:42,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 06:52:42,066 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 06:52:42,066 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:52:42,067 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:52:42,067 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 06:52:42,067 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 06:52:42,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:52:42,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-11 06:52:42,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:52:42 BasicIcfg [2021-06-11 06:52:42,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 06:52:42,071 INFO L168 Benchmark]: Toolchain (without parser) took 6803.99 ms. Allocated memory was 377.5 MB in the beginning and 501.2 MB in the end (delta: 123.7 MB). Free memory was 340.2 MB in the beginning and 301.7 MB in the end (delta: 38.6 MB). Peak memory consumption was 163.4 MB. Max. memory is 16.0 GB. [2021-06-11 06:52:42,071 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 377.5 MB. Free memory was 358.5 MB in the beginning and 358.5 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:52:42,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.21 ms. Allocated memory is still 377.5 MB. Free memory was 340.0 MB in the beginning and 339.9 MB in the end (delta: 121.1 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:52:42,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.71 ms. Allocated memory is still 377.5 MB. Free memory was 339.9 MB in the beginning and 338.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:52:42,072 INFO L168 Benchmark]: Boogie Preprocessor took 18.95 ms. Allocated memory is still 377.5 MB. Free memory was 338.9 MB in the beginning and 336.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:52:42,072 INFO L168 Benchmark]: RCFGBuilder took 465.18 ms. Allocated memory is still 377.5 MB. Free memory was 336.8 MB in the beginning and 311.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-11 06:52:42,072 INFO L168 Benchmark]: TraceAbstraction took 5801.85 ms. Allocated memory was 377.5 MB in the beginning and 501.2 MB in the end (delta: 123.7 MB). Free memory was 311.6 MB in the beginning and 301.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 136.8 MB. Max. memory is 16.0 GB. [2021-06-11 06:52:42,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 377.5 MB. Free memory was 358.5 MB in the beginning and 358.5 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 478.21 ms. Allocated memory is still 377.5 MB. Free memory was 340.0 MB in the beginning and 339.9 MB in the end (delta: 121.1 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 32.71 ms. Allocated memory is still 377.5 MB. Free memory was 339.9 MB in the beginning and 338.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.95 ms. Allocated memory is still 377.5 MB. Free memory was 338.9 MB in the beginning and 336.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 465.18 ms. Allocated memory is still 377.5 MB. Free memory was 336.8 MB in the beginning and 311.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5801.85 ms. Allocated memory was 377.5 MB in the beginning and 501.2 MB in the end (delta: 123.7 MB). Free memory was 311.6 MB in the beginning and 301.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 136.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2980.7ms, 80 PlacesBefore, 33 PlacesAfterwards, 68 TransitionsBefore, 21 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 51 TotalNumberOfCompositions, 2021 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1142, positive: 1067, positive conditional: 0, positive unconditional: 1067, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 839, positive: 801, positive conditional: 0, positive unconditional: 801, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 839, positive: 801, positive conditional: 0, positive unconditional: 801, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 839, positive: 781, positive conditional: 0, positive unconditional: 781, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 246, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 153, negative conditional: 0, negative unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1142, positive: 266, positive conditional: 0, positive unconditional: 266, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 839, unknown conditional: 0, unknown unconditional: 839] , Statistics on independence cache: Total cache size (in pairs): 1319, Positive cache size: 1281, Positive conditional cache size: 0, Positive unconditional cache size: 1281, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3ms, 30 PlacesBefore, 29 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 178 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 172 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 64, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 64, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 1329, Positive cache size: 1291, Positive conditional cache size: 0, Positive unconditional cache size: 1291, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.7ms, 32 PlacesBefore, 32 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 176 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 140 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 58, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 58, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 1333, Positive cache size: 1294, Positive conditional cache size: 0, Positive unconditional cache size: 1294, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.3ms, 38 PlacesBefore, 38 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 21 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1335, Positive cache size: 1296, Positive conditional cache size: 0, Positive unconditional cache size: 1296, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.3ms, 45 PlacesBefore, 45 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 19 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.9ms, 41 PlacesBefore, 41 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 43 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 2, negative conditional: 0, negative unconditional: 2, 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: 25, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3ms, 46 PlacesBefore, 46 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 49 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 2, negative conditional: 0, negative unconditional: 2, 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: 16, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.3ms, 49 PlacesBefore, 49 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 2, negative conditional: 0, negative unconditional: 2, 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: 20, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.2ms, 50 PlacesBefore, 50 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.2ms, 52 PlacesBefore, 52 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 294 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.8ms, 60 PlacesBefore, 60 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 422 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): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.6ms, 68 PlacesBefore, 68 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 478 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): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 65.5ms, 69 PlacesBefore, 69 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 478 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): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.3ms, 79 PlacesBefore, 76 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 252 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): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 54 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): 1336, Positive cache size: 1297, Positive conditional cache size: 0, Positive unconditional cache size: 1297, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39 - 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: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5695.3ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1238.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3059.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 63 SDtfs, 54 SDslu, 42 SDs, 0 SdLazy, 241 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 201.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 209.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=11, InterpolantAutomatonStates: 71, 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: 25.4ms SsaConstructionTime, 187.0ms SatisfiabilityAnalysisTime, 566.5ms InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 690 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...