/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 16:05:49,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 16:05:49,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 16:05:49,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 16:05:49,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 16:05:49,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 16:05:49,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 16:05:49,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 16:05:49,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 16:05:49,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 16:05:49,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 16:05:49,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 16:05:49,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 16:05:49,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 16:05:49,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 16:05:49,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 16:05:49,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 16:05:49,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 16:05:49,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 16:05:49,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 16:05:49,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 16:05:49,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 16:05:49,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 16:05:49,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 16:05:49,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 16:05:49,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 16:05:49,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 16:05:49,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 16:05:49,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 16:05:49,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 16:05:49,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 16:05:49,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 16:05:49,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 16:05:49,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 16:05:49,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 16:05:49,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 16:05:49,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 16:05:49,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 16:05:49,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 16:05:49,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 16:05:49,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 16:05:49,161 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-06-11 16:05:49,179 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 16:05:49,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 16:05:49,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 16:05:49,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 16:05:49,182 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 16:05:49,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 16:05:49,182 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 16:05:49,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 16:05:49,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 16:05:49,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 16:05:49,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 16:05:49,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 16:05:49,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 16:05:49,183 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 16:05:49,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 16:05:49,184 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 16:05:49,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 16:05:49,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 16:05:49,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 16:05:49,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 16:05:49,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 16:05:49,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:05:49,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 16:05:49,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 16:05:49,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 16:05:49,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 16:05:49,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 16:05:49,185 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 16:05:49,185 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 16:05:49,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 16:05:49,185 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 16:05:49,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 16:05:49,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 16:05:49,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 16:05:49,440 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 16:05:49,440 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 16:05:49,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-06-11 16:05:49,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c415958bc/aefbb0de959746b0991560f5a5d71f28/FLAGfee80c65b [2021-06-11 16:05:49,919 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 16:05:49,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2021-06-11 16:05:49,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c415958bc/aefbb0de959746b0991560f5a5d71f28/FLAGfee80c65b [2021-06-11 16:05:50,277 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c415958bc/aefbb0de959746b0991560f5a5d71f28 [2021-06-11 16:05:50,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 16:05:50,281 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 16:05:50,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 16:05:50,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 16:05:50,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 16:05:50,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cabce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50, skipping insertion in model container [2021-06-11 16:05:50,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 16:05:50,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 16:05:50,441 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/safe011_tso.oepc.i[950,963] [2021-06-11 16:05:50,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:05:50,544 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 16:05:50,552 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/safe011_tso.oepc.i[950,963] [2021-06-11 16:05:50,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:05:50,640 INFO L208 MainTranslator]: Completed translation [2021-06-11 16:05:50,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50 WrapperNode [2021-06-11 16:05:50,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 16:05:50,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 16:05:50,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 16:05:50,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 16:05:50,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 16:05:50,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 16:05:50,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 16:05:50,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 16:05:50,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (1/1) ... [2021-06-11 16:05:50,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 16:05:50,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 16:05:50,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 16:05:50,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 16:05:50,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (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 16:05:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 16:05:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 16:05:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 16:05:50,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 16:05:50,769 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 16:05:50,769 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 16:05:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 16:05:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 16:05:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 16:05:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 16:05:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 16:05:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 16:05:50,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 16:05:50,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 16:05:50,771 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 16:05:51,061 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 16:05:51,061 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 16:05:51,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:05:51 BoogieIcfgContainer [2021-06-11 16:05:51,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 16:05:51,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 16:05:51,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 16:05:51,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 16:05:51,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:05:50" (1/3) ... [2021-06-11 16:05:51,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8d6a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:05:51, skipping insertion in model container [2021-06-11 16:05:51,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:05:50" (2/3) ... [2021-06-11 16:05:51,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8d6a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:05:51, skipping insertion in model container [2021-06-11 16:05:51,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:05:51" (3/3) ... [2021-06-11 16:05:51,067 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2021-06-11 16:05:51,070 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 16:05:51,073 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 16:05:51,073 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 16:05:51,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,121 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,122 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,122 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,122 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,122 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,123 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,124 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,124 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,125 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,126 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,126 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,126 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,127 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,127 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,127 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,127 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,129 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,134 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,134 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,135 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,138 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,138 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,138 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,138 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:05:51,140 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 16:05:51,151 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 16:05:51,164 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 16:05:51,164 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 16:05:51,164 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 16:05:51,164 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 16:05:51,164 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 16:05:51,164 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 16:05:51,164 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 16:05:51,164 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 16:05:51,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-06-11 16:05:51,192 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-06-11 16:05:51,192 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:05:51,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-11 16:05:51,194 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-06-11 16:05:51,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-06-11 16:05:51,198 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:05:51,207 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-06-11 16:05:51,209 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-06-11 16:05:51,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-06-11 16:05:51,220 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-06-11 16:05:51,220 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:05:51,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 16:05:51,222 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-11 16:05:51,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:51,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:51,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,390 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:05:51,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:51,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:05:51,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:51,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:51,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:51,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:51,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:51,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,691 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:05:51,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:51,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:05:51,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:51,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:51,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,864 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:05:51,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:51,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:05:51,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:51,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,987 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:05:51,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:51,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:51,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:05:52,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:52,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:52,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,132 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 16:05:52,168 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 16:05:52,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:52,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,239 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:05:52,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:52,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:05:52,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:52,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:52,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:52,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:52,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:52,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:52,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,494 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:05:52,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 16:05:52,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:05:52,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:05:52,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,704 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:05:52,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:52,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:05:52,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:52,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:53,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:53,025 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:05:53,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:53,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:53,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 16:05:53,182 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-11 16:05:53,383 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-11 16:05:53,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:53,447 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:05:53,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:53,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:53,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:05:53,455 INFO L163 LiptonReduction]: Checked pairs total: 1498 [2021-06-11 16:05:53,455 INFO L165 LiptonReduction]: Total number of compositions: 45 [2021-06-11 16:05:53,457 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2260 [2021-06-11 16:05:53,463 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-11 16:05:53,463 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:05:53,463 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:05:53,463 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:05:53,464 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:05:53,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:05:53,467 INFO L82 PathProgramCache]: Analyzing trace with hash -903732610, now seen corresponding path program 1 times [2021-06-11 16:05:53,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:05:53,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332411869] [2021-06-11 16:05:53,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:05:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:05:53,595 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:05:53,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:53,606 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 16:05:53,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332411869] [2021-06-11 16:05:53,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:05:53,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:05:53,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380213672] [2021-06-11 16:05:53,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:05:53,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:05:53,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:05:53,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:05:53,621 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 119 [2021-06-11 16:05:53,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 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 16:05:53,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:05:53,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 119 [2021-06-11 16:05:53,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:05:53,658 INFO L129 PetriNetUnfolder]: 45/144 cut-off events. [2021-06-11 16:05:53,658 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:05:53,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 144 events. 45/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 699 event pairs, 17 based on Foata normal form. 9/146 useless extension candidates. Maximal degree in co-relation 239. Up to 62 conditions per place. [2021-06-11 16:05:53,660 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 6 selfloop transitions, 6 changer transitions 0/22 dead transitions. [2021-06-11 16:05:53,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 77 flow [2021-06-11 16:05:53,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:05:53,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:05:53,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2021-06-11 16:05:53,668 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7675070028011205 [2021-06-11 16:05:53,669 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2021-06-11 16:05:53,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2021-06-11 16:05:53,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:05:53,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2021-06-11 16:05:53,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 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 16:05:53,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 16:05:53,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 16:05:53,678 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 43 flow. Second operand 3 states and 274 transitions. [2021-06-11 16:05:53,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 77 flow [2021-06-11 16:05:53,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 74 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 16:05:53,680 INFO L241 Difference]: Finished difference. Result has 28 places, 22 transitions, 86 flow [2021-06-11 16:05:53,681 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2021-06-11 16:05:53,682 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2021-06-11 16:05:53,682 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:05:53,682 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 22 transitions, 86 flow [2021-06-11 16:05:53,683 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 22 transitions, 86 flow [2021-06-11 16:05:53,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 22 transitions, 86 flow [2021-06-11 16:05:53,693 INFO L129 PetriNetUnfolder]: 45/132 cut-off events. [2021-06-11 16:05:53,693 INFO L130 PetriNetUnfolder]: For 17/21 co-relation queries the response was YES. [2021-06-11 16:05:53,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 132 events. 45/132 cut-off events. For 17/21 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 597 event pairs, 19 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 272. Up to 62 conditions per place. [2021-06-11 16:05:53,698 INFO L151 LiptonReduction]: Number of co-enabled transitions 146 [2021-06-11 16:05:53,700 INFO L163 LiptonReduction]: Checked pairs total: 42 [2021-06-11 16:05:53,700 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:05:53,701 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-06-11 16:05:53,704 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 86 flow [2021-06-11 16:05:53,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 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 16:05:53,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:05:53,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:05:53,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 16:05:53,704 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:05:53,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:05:53,705 INFO L82 PathProgramCache]: Analyzing trace with hash 2049059359, now seen corresponding path program 1 times [2021-06-11 16:05:53,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:05:53,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761837749] [2021-06-11 16:05:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:05:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:05:53,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:53,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:53,757 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:05:53,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:53,766 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 16:05:53,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761837749] [2021-06-11 16:05:53,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:05:53,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:05:53,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266040391] [2021-06-11 16:05:53,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:05:53,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:05:53,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:05:53,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:05:53,769 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 119 [2021-06-11 16:05:53,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 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 16:05:53,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:05:53,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 119 [2021-06-11 16:05:53,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:05:53,795 INFO L129 PetriNetUnfolder]: 36/115 cut-off events. [2021-06-11 16:05:53,795 INFO L130 PetriNetUnfolder]: For 37/102 co-relation queries the response was YES. [2021-06-11 16:05:53,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 115 events. 36/115 cut-off events. For 37/102 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 485 event pairs, 4 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 313. Up to 49 conditions per place. [2021-06-11 16:05:53,796 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 10 selfloop transitions, 7 changer transitions 0/27 dead transitions. [2021-06-11 16:05:53,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 146 flow [2021-06-11 16:05:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:05:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:05:53,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 363 transitions. [2021-06-11 16:05:53,801 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7626050420168067 [2021-06-11 16:05:53,801 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 363 transitions. [2021-06-11 16:05:53,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 363 transitions. [2021-06-11 16:05:53,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:05:53,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 363 transitions. [2021-06-11 16:05:53,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 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 16:05:53,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 16:05:53,804 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 16:05:53,804 INFO L185 Difference]: Start difference. First operand has 28 places, 22 transitions, 86 flow. Second operand 4 states and 363 transitions. [2021-06-11 16:05:53,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 146 flow [2021-06-11 16:05:53,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:05:53,806 INFO L241 Difference]: Finished difference. Result has 32 places, 25 transitions, 122 flow [2021-06-11 16:05:53,806 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2021-06-11 16:05:53,806 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2021-06-11 16:05:53,806 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:05:53,806 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 25 transitions, 122 flow [2021-06-11 16:05:53,807 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 25 transitions, 122 flow [2021-06-11 16:05:53,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 25 transitions, 122 flow [2021-06-11 16:05:53,813 INFO L129 PetriNetUnfolder]: 36/117 cut-off events. [2021-06-11 16:05:53,813 INFO L130 PetriNetUnfolder]: For 76/82 co-relation queries the response was YES. [2021-06-11 16:05:53,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 117 events. 36/117 cut-off events. For 76/82 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 493 event pairs, 7 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 290. Up to 49 conditions per place. [2021-06-11 16:05:53,815 INFO L151 LiptonReduction]: Number of co-enabled transitions 158 [2021-06-11 16:05:53,816 INFO L163 LiptonReduction]: Checked pairs total: 47 [2021-06-11 16:05:53,816 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:05:53,816 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 16:05:53,817 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 122 flow [2021-06-11 16:05:53,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 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 16:05:53,817 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:05:53,817 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:05:53,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 16:05:53,817 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:05:53,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:05:53,818 INFO L82 PathProgramCache]: Analyzing trace with hash 2049059483, now seen corresponding path program 1 times [2021-06-11 16:05:53,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:05:53,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987501756] [2021-06-11 16:05:53,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:05:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:05:53,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:53,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:53,855 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 16:05:53,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987501756] [2021-06-11 16:05:53,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:05:53,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:05:53,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44520042] [2021-06-11 16:05:53,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:05:53,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:05:53,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:05:53,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:05:53,859 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 119 [2021-06-11 16:05:53,859 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 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 16:05:53,859 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:05:53,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 119 [2021-06-11 16:05:53,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:05:53,874 INFO L129 PetriNetUnfolder]: 30/107 cut-off events. [2021-06-11 16:05:53,874 INFO L130 PetriNetUnfolder]: For 109/125 co-relation queries the response was YES. [2021-06-11 16:05:53,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 107 events. 30/107 cut-off events. For 109/125 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 445 event pairs, 6 based on Foata normal form. 3/106 useless extension candidates. Maximal degree in co-relation 288. Up to 41 conditions per place. [2021-06-11 16:05:53,876 INFO L132 encePairwiseOnDemand]: 115/119 looper letters, 5 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2021-06-11 16:05:53,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 152 flow [2021-06-11 16:05:53,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:05:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:05:53,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-06-11 16:05:53,878 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8515406162464986 [2021-06-11 16:05:53,878 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-06-11 16:05:53,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-06-11 16:05:53,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:05:53,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-06-11 16:05:53,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 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 16:05:53,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 16:05:53,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 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 16:05:53,880 INFO L185 Difference]: Start difference. First operand has 32 places, 25 transitions, 122 flow. Second operand 3 states and 304 transitions. [2021-06-11 16:05:53,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 152 flow [2021-06-11 16:05:53,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 27 transitions, 149 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:05:53,882 INFO L241 Difference]: Finished difference. Result has 34 places, 27 transitions, 149 flow [2021-06-11 16:05:53,882 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2021-06-11 16:05:53,882 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2021-06-11 16:05:53,882 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:05:53,882 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 27 transitions, 149 flow [2021-06-11 16:05:53,882 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 27 transitions, 149 flow [2021-06-11 16:05:53,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 149 flow [2021-06-11 16:05:53,888 INFO L129 PetriNetUnfolder]: 30/111 cut-off events. [2021-06-11 16:05:53,889 INFO L130 PetriNetUnfolder]: For 81/87 co-relation queries the response was YES. [2021-06-11 16:05:53,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 111 events. 30/111 cut-off events. For 81/87 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 480 event pairs, 5 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 292. Up to 41 conditions per place. [2021-06-11 16:05:53,890 INFO L151 LiptonReduction]: Number of co-enabled transitions 170 [2021-06-11 16:05:53,891 INFO L163 LiptonReduction]: Checked pairs total: 53 [2021-06-11 16:05:53,891 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:05:53,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 16:05:53,892 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 149 flow [2021-06-11 16:05:53,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 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 16:05:53,892 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:05:53,892 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:05:53,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 16:05:53,893 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:05:53,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:05:53,893 INFO L82 PathProgramCache]: Analyzing trace with hash -903398430, now seen corresponding path program 1 times [2021-06-11 16:05:53,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:05:53,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072962798] [2021-06-11 16:05:53,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:05:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:05:53,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:53,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:53,928 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:05:53,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:53,934 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 16:05:53,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072962798] [2021-06-11 16:05:53,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:05:53,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:05:53,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032156169] [2021-06-11 16:05:53,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:05:53,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:05:53,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:05:53,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:05:53,937 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 119 [2021-06-11 16:05:53,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 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 16:05:53,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:05:53,938 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 119 [2021-06-11 16:05:53,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:05:53,957 INFO L129 PetriNetUnfolder]: 23/92 cut-off events. [2021-06-11 16:05:53,957 INFO L130 PetriNetUnfolder]: For 89/162 co-relation queries the response was YES. [2021-06-11 16:05:53,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 92 events. 23/92 cut-off events. For 89/162 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 364 event pairs, 1 based on Foata normal form. 8/99 useless extension candidates. Maximal degree in co-relation 304. Up to 35 conditions per place. [2021-06-11 16:05:53,958 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 14 selfloop transitions, 15 changer transitions 0/39 dead transitions. [2021-06-11 16:05:53,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 293 flow [2021-06-11 16:05:53,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:05:53,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:05:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2021-06-11 16:05:53,959 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7689075630252101 [2021-06-11 16:05:53,959 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 366 transitions. [2021-06-11 16:05:53,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 366 transitions. [2021-06-11 16:05:53,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:05:53,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 366 transitions. [2021-06-11 16:05:53,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 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 16:05:53,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 16:05:53,961 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 16:05:53,961 INFO L185 Difference]: Start difference. First operand has 34 places, 27 transitions, 149 flow. Second operand 4 states and 366 transitions. [2021-06-11 16:05:53,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 293 flow [2021-06-11 16:05:53,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:05:53,963 INFO L241 Difference]: Finished difference. Result has 39 places, 37 transitions, 290 flow [2021-06-11 16:05:53,963 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2021-06-11 16:05:53,963 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 12 predicate places. [2021-06-11 16:05:53,963 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:05:53,963 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 37 transitions, 290 flow [2021-06-11 16:05:53,964 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 37 transitions, 290 flow [2021-06-11 16:05:53,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 37 transitions, 290 flow [2021-06-11 16:05:53,969 INFO L129 PetriNetUnfolder]: 23/88 cut-off events. [2021-06-11 16:05:53,969 INFO L130 PetriNetUnfolder]: For 182/195 co-relation queries the response was YES. [2021-06-11 16:05:53,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 88 events. 23/88 cut-off events. For 182/195 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 343 event pairs, 1 based on Foata normal form. 1/87 useless extension candidates. Maximal degree in co-relation 311. Up to 35 conditions per place. [2021-06-11 16:05:53,970 INFO L151 LiptonReduction]: Number of co-enabled transitions 206 [2021-06-11 16:05:53,973 INFO L163 LiptonReduction]: Checked pairs total: 63 [2021-06-11 16:05:53,973 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:05:53,973 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 16:05:53,973 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 290 flow [2021-06-11 16:05:53,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 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 16:05:53,974 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:05:53,974 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:05:53,974 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 16:05:53,974 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:05:53,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:05:53,974 INFO L82 PathProgramCache]: Analyzing trace with hash 2058388468, now seen corresponding path program 1 times [2021-06-11 16:05:53,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:05:53,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554422294] [2021-06-11 16:05:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:05:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:05:53,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:53,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:53,997 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 16:05:53,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:05:54,002 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 16:05:54,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554422294] [2021-06-11 16:05:54,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:05:54,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:05:54,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929158681] [2021-06-11 16:05:54,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:05:54,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:05:54,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:05:54,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:05:54,003 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-06-11 16:05:54,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 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 16:05:54,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:05:54,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-06-11 16:05:54,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:05:54,039 INFO L129 PetriNetUnfolder]: 58/159 cut-off events. [2021-06-11 16:05:54,039 INFO L130 PetriNetUnfolder]: For 541/645 co-relation queries the response was YES. [2021-06-11 16:05:54,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 159 events. 58/159 cut-off events. For 541/645 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 681 event pairs, 0 based on Foata normal form. 16/173 useless extension candidates. Maximal degree in co-relation 654. Up to 49 conditions per place. [2021-06-11 16:05:54,040 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 21 selfloop transitions, 28 changer transitions 3/61 dead transitions. [2021-06-11 16:05:54,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 61 transitions, 632 flow [2021-06-11 16:05:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:05:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:05:54,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 450 transitions. [2021-06-11 16:05:54,041 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7563025210084033 [2021-06-11 16:05:54,041 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 450 transitions. [2021-06-11 16:05:54,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 450 transitions. [2021-06-11 16:05:54,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:05:54,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 450 transitions. [2021-06-11 16:05:54,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:05:54,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 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 16:05:54,044 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 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 16:05:54,044 INFO L185 Difference]: Start difference. First operand has 39 places, 37 transitions, 290 flow. Second operand 5 states and 450 transitions. [2021-06-11 16:05:54,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 61 transitions, 632 flow [2021-06-11 16:05:54,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 61 transitions, 632 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:05:54,046 INFO L241 Difference]: Finished difference. Result has 47 places, 52 transitions, 580 flow [2021-06-11 16:05:54,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=580, PETRI_PLACES=47, PETRI_TRANSITIONS=52} [2021-06-11 16:05:54,047 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 20 predicate places. [2021-06-11 16:05:54,047 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:05:54,047 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 52 transitions, 580 flow [2021-06-11 16:05:54,047 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 52 transitions, 580 flow [2021-06-11 16:05:54,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 52 transitions, 580 flow [2021-06-11 16:05:54,055 INFO L129 PetriNetUnfolder]: 40/136 cut-off events. [2021-06-11 16:05:54,055 INFO L130 PetriNetUnfolder]: For 593/618 co-relation queries the response was YES. [2021-06-11 16:05:54,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 136 events. 40/136 cut-off events. For 593/618 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 660 event pairs, 0 based on Foata normal form. 2/136 useless extension candidates. Maximal degree in co-relation 615. Up to 41 conditions per place. [2021-06-11 16:05:54,056 INFO L151 LiptonReduction]: Number of co-enabled transitions 252 [2021-06-11 16:05:54,060 INFO L163 LiptonReduction]: Checked pairs total: 44 [2021-06-11 16:05:54,060 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:05:54,061 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 16:05:54,061 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 52 transitions, 580 flow [2021-06-11 16:05:54,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 0 states have call successors, (0), 0 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 16:05:54,061 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:05:54,061 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:05:54,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 16:05:54,062 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:05:54,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:05:54,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1096630161, now seen corresponding path program 1 times [2021-06-11 16:05:54,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:05:54,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771956871] [2021-06-11 16:05:54,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:05:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:05:54,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:54,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:54,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:54,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:54,090 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 16:05:54,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771956871] [2021-06-11 16:05:54,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:05:54,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:05:54,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067809280] [2021-06-11 16:05:54,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:05:54,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:05:54,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:05:54,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:05:54,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 119 [2021-06-11 16:05:54,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 52 transitions, 580 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 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 16:05:54,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:05:54,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 119 [2021-06-11 16:05:54,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:05:54,113 INFO L129 PetriNetUnfolder]: 37/137 cut-off events. [2021-06-11 16:05:54,113 INFO L130 PetriNetUnfolder]: For 902/983 co-relation queries the response was YES. [2021-06-11 16:05:54,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 137 events. 37/137 cut-off events. For 902/983 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 663 event pairs, 0 based on Foata normal form. 15/150 useless extension candidates. Maximal degree in co-relation 648. Up to 42 conditions per place. [2021-06-11 16:05:54,114 INFO L132 encePairwiseOnDemand]: 115/119 looper letters, 1 selfloop transitions, 5 changer transitions 23/52 dead transitions. [2021-06-11 16:05:54,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 52 transitions, 598 flow [2021-06-11 16:05:54,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:05:54,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:05:54,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 383 transitions. [2021-06-11 16:05:54,115 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8046218487394958 [2021-06-11 16:05:54,115 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 383 transitions. [2021-06-11 16:05:54,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 383 transitions. [2021-06-11 16:05:54,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:05:54,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 383 transitions. [2021-06-11 16:05:54,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 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 16:05:54,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 16:05:54,117 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 16:05:54,117 INFO L185 Difference]: Start difference. First operand has 47 places, 52 transitions, 580 flow. Second operand 4 states and 383 transitions. [2021-06-11 16:05:54,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 52 transitions, 598 flow [2021-06-11 16:05:54,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 52 transitions, 598 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:05:54,120 INFO L241 Difference]: Finished difference. Result has 52 places, 29 transitions, 292 flow [2021-06-11 16:05:54,120 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=292, PETRI_PLACES=52, PETRI_TRANSITIONS=29} [2021-06-11 16:05:54,121 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 25 predicate places. [2021-06-11 16:05:54,121 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:05:54,121 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 29 transitions, 292 flow [2021-06-11 16:05:54,121 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 29 transitions, 292 flow [2021-06-11 16:05:54,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 29 transitions, 292 flow [2021-06-11 16:05:54,126 INFO L129 PetriNetUnfolder]: 10/54 cut-off events. [2021-06-11 16:05:54,126 INFO L130 PetriNetUnfolder]: For 284/292 co-relation queries the response was YES. [2021-06-11 16:05:54,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 54 events. 10/54 cut-off events. For 284/292 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 147 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 251. Up to 17 conditions per place. [2021-06-11 16:05:54,126 INFO L151 LiptonReduction]: Number of co-enabled transitions 156 [2021-06-11 16:05:54,128 INFO L163 LiptonReduction]: Checked pairs total: 21 [2021-06-11 16:05:54,128 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:05:54,129 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 16:05:54,129 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 29 transitions, 292 flow [2021-06-11 16:05:54,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 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 16:05:54,130 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:05:54,130 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:05:54,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 16:05:54,130 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:05:54,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:05:54,130 INFO L82 PathProgramCache]: Analyzing trace with hash -581149183, now seen corresponding path program 1 times [2021-06-11 16:05:54,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:05:54,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933273798] [2021-06-11 16:05:54,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:05:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:05:54,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:54,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:54,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:54,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:54,183 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 16:05:54,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933273798] [2021-06-11 16:05:54,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:05:54,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:05:54,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546350917] [2021-06-11 16:05:54,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:05:54,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:05:54,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:05:54,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:05:54,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 119 [2021-06-11 16:05:54,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 29 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 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 16:05:54,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:05:54,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 119 [2021-06-11 16:05:54,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:05:54,211 INFO L129 PetriNetUnfolder]: 52/149 cut-off events. [2021-06-11 16:05:54,211 INFO L130 PetriNetUnfolder]: For 985/1023 co-relation queries the response was YES. [2021-06-11 16:05:54,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 149 events. 52/149 cut-off events. For 985/1023 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 717 event pairs, 3 based on Foata normal form. 11/144 useless extension candidates. Maximal degree in co-relation 510. Up to 55 conditions per place. [2021-06-11 16:05:54,212 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 8 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2021-06-11 16:05:54,212 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 36 transitions, 332 flow [2021-06-11 16:05:54,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:05:54,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:05:54,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2021-06-11 16:05:54,213 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7962184873949579 [2021-06-11 16:05:54,213 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 379 transitions. [2021-06-11 16:05:54,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 379 transitions. [2021-06-11 16:05:54,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:05:54,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 379 transitions. [2021-06-11 16:05:54,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 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 16:05:54,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 16:05:54,215 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 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 16:05:54,215 INFO L185 Difference]: Start difference. First operand has 52 places, 29 transitions, 292 flow. Second operand 4 states and 379 transitions. [2021-06-11 16:05:54,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 36 transitions, 332 flow [2021-06-11 16:05:54,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 36 transitions, 241 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-06-11 16:05:54,218 INFO L241 Difference]: Finished difference. Result has 46 places, 33 transitions, 239 flow [2021-06-11 16:05:54,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2021-06-11 16:05:54,218 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 19 predicate places. [2021-06-11 16:05:54,218 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:05:54,218 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 33 transitions, 239 flow [2021-06-11 16:05:54,218 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 33 transitions, 239 flow [2021-06-11 16:05:54,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 33 transitions, 239 flow [2021-06-11 16:05:54,225 INFO L129 PetriNetUnfolder]: 35/123 cut-off events. [2021-06-11 16:05:54,225 INFO L130 PetriNetUnfolder]: For 222/252 co-relation queries the response was YES. [2021-06-11 16:05:54,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 123 events. 35/123 cut-off events. For 222/252 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 619 event pairs, 5 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 395. Up to 74 conditions per place. [2021-06-11 16:05:54,226 INFO L151 LiptonReduction]: Number of co-enabled transitions 206 [2021-06-11 16:05:54,228 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:05:54,228 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:05:54,228 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 16:05:54,228 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 239 flow [2021-06-11 16:05:54,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 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 16:05:54,229 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:05:54,229 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:05:54,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 16:05:54,229 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:05:54,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:05:54,229 INFO L82 PathProgramCache]: Analyzing trace with hash -835130557, now seen corresponding path program 1 times [2021-06-11 16:05:54,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:05:54,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459859319] [2021-06-11 16:05:54,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:05:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:05:54,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:54,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:54,265 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 16:05:54,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 16:05:54,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:54,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:54,271 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 16:05:54,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459859319] [2021-06-11 16:05:54,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:05:54,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:05:54,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406775220] [2021-06-11 16:05:54,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:05:54,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:05:54,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:05:54,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:05:54,274 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 119 [2021-06-11 16:05:54,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:05:54,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:05:54,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 119 [2021-06-11 16:05:54,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:05:54,310 INFO L129 PetriNetUnfolder]: 38/130 cut-off events. [2021-06-11 16:05:54,310 INFO L130 PetriNetUnfolder]: For 329/543 co-relation queries the response was YES. [2021-06-11 16:05:54,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 130 events. 38/130 cut-off events. For 329/543 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 652 event pairs, 0 based on Foata normal form. 27/138 useless extension candidates. Maximal degree in co-relation 470. Up to 79 conditions per place. [2021-06-11 16:05:54,311 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 5 selfloop transitions, 8 changer transitions 4/40 dead transitions. [2021-06-11 16:05:54,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 40 transitions, 302 flow [2021-06-11 16:05:54,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:05:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:05:54,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 474 transitions. [2021-06-11 16:05:54,313 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7966386554621848 [2021-06-11 16:05:54,313 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 474 transitions. [2021-06-11 16:05:54,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 474 transitions. [2021-06-11 16:05:54,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:05:54,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 474 transitions. [2021-06-11 16:05:54,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 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 16:05:54,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 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 16:05:54,316 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 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 16:05:54,316 INFO L185 Difference]: Start difference. First operand has 46 places, 33 transitions, 239 flow. Second operand 5 states and 474 transitions. [2021-06-11 16:05:54,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 40 transitions, 302 flow [2021-06-11 16:05:54,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 40 transitions, 299 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:05:54,319 INFO L241 Difference]: Finished difference. Result has 51 places, 36 transitions, 285 flow [2021-06-11 16:05:54,319 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=285, PETRI_PLACES=51, PETRI_TRANSITIONS=36} [2021-06-11 16:05:54,320 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 24 predicate places. [2021-06-11 16:05:54,320 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:05:54,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 36 transitions, 285 flow [2021-06-11 16:05:54,320 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 36 transitions, 285 flow [2021-06-11 16:05:54,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 36 transitions, 285 flow [2021-06-11 16:05:54,329 INFO L129 PetriNetUnfolder]: 32/123 cut-off events. [2021-06-11 16:05:54,329 INFO L130 PetriNetUnfolder]: For 343/388 co-relation queries the response was YES. [2021-06-11 16:05:54,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 123 events. 32/123 cut-off events. For 343/388 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 663 event pairs, 0 based on Foata normal form. 7/119 useless extension candidates. Maximal degree in co-relation 481. Up to 73 conditions per place. [2021-06-11 16:05:54,331 INFO L151 LiptonReduction]: Number of co-enabled transitions 218 [2021-06-11 16:05:54,332 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:05:54,332 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:05:54,333 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 16:05:54,335 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 36 transitions, 285 flow [2021-06-11 16:05:54,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:05:54,335 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:05:54,335 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:05:54,336 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 16:05:54,336 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:05:54,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:05:54,336 INFO L82 PathProgramCache]: Analyzing trace with hash -421241275, now seen corresponding path program 1 times [2021-06-11 16:05:54,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:05:54,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567021719] [2021-06-11 16:05:54,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:05:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:05:54,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:54,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:54,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:54,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:54,388 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 16:05:54,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 16:05:54,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:05:54,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:05:54,394 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 16:05:54,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567021719] [2021-06-11 16:05:54,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:05:54,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 16:05:54,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209464043] [2021-06-11 16:05:54,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 16:05:54,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:05:54,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 16:05:54,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 16:05:54,396 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 119 [2021-06-11 16:05:54,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 36 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 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 16:05:54,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:05:54,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 119 [2021-06-11 16:05:54,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:05:54,464 INFO L129 PetriNetUnfolder]: 32/120 cut-off events. [2021-06-11 16:05:54,464 INFO L130 PetriNetUnfolder]: For 506/863 co-relation queries the response was YES. [2021-06-11 16:05:54,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 120 events. 32/120 cut-off events. For 506/863 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 636 event pairs, 0 based on Foata normal form. 35/136 useless extension candidates. Maximal degree in co-relation 543. Up to 71 conditions per place. [2021-06-11 16:05:54,465 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2021-06-11 16:05:54,465 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 36 transitions, 300 flow [2021-06-11 16:05:54,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 16:05:54,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 16:05:54,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 560 transitions. [2021-06-11 16:05:54,466 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7843137254901961 [2021-06-11 16:05:54,466 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 560 transitions. [2021-06-11 16:05:54,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 560 transitions. [2021-06-11 16:05:54,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:05:54,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 560 transitions. [2021-06-11 16:05:54,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 0 states have call successors, (0), 0 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 16:05:54,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 16:05:54,468 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 16:05:54,468 INFO L185 Difference]: Start difference. First operand has 51 places, 36 transitions, 285 flow. Second operand 6 states and 560 transitions. [2021-06-11 16:05:54,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 36 transitions, 300 flow [2021-06-11 16:05:54,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 36 transitions, 284 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-06-11 16:05:54,470 INFO L241 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2021-06-11 16:05:54,470 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2021-06-11 16:05:54,470 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 25 predicate places. [2021-06-11 16:05:54,470 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:05:54,470 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 0 transitions, 0 flow [2021-06-11 16:05:54,471 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 0 transitions, 0 flow [2021-06-11 16:05:54,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 16:05:54,471 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 16:05:54,471 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:05:54,471 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 16:05:54,471 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 16:05:54,471 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:05:54,471 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:05:54,471 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 16:05:54,473 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 16:05:54,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 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 16:05:54,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 16:05:54,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:05:54 BasicIcfg [2021-06-11 16:05:54,476 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 16:05:54,476 INFO L168 Benchmark]: Toolchain (without parser) took 4194.70 ms. Allocated memory was 381.7 MB in the beginning and 459.3 MB in the end (delta: 77.6 MB). Free memory was 343.8 MB in the beginning and 431.1 MB in the end (delta: -87.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:05:54,476 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 381.7 MB. Free memory is still 362.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:05:54,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.46 ms. Allocated memory is still 381.7 MB. Free memory was 343.6 MB in the beginning and 343.2 MB in the end (delta: 391.1 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-06-11 16:05:54,478 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.60 ms. Allocated memory is still 381.7 MB. Free memory was 343.2 MB in the beginning and 341.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:05:54,478 INFO L168 Benchmark]: Boogie Preprocessor took 24.34 ms. Allocated memory is still 381.7 MB. Free memory was 341.1 MB in the beginning and 339.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:05:54,478 INFO L168 Benchmark]: RCFGBuilder took 349.63 ms. Allocated memory is still 381.7 MB. Free memory was 339.0 MB in the beginning and 315.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:05:54,478 INFO L168 Benchmark]: TraceAbstraction took 3412.43 ms. Allocated memory was 381.7 MB in the beginning and 459.3 MB in the end (delta: 77.6 MB). Free memory was 314.9 MB in the beginning and 431.1 MB in the end (delta: -116.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:05:54,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 381.7 MB. Free memory is still 362.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 352.46 ms. Allocated memory is still 381.7 MB. Free memory was 343.6 MB in the beginning and 343.2 MB in the end (delta: 391.1 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.60 ms. Allocated memory is still 381.7 MB. Free memory was 343.2 MB in the beginning and 341.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 24.34 ms. Allocated memory is still 381.7 MB. Free memory was 341.1 MB in the beginning and 339.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 349.63 ms. Allocated memory is still 381.7 MB. Free memory was 339.0 MB in the beginning and 315.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3412.43 ms. Allocated memory was 381.7 MB in the beginning and 459.3 MB in the end (delta: 77.6 MB). Free memory was 314.9 MB in the beginning and 431.1 MB in the end (delta: -116.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2245.7ms, 68 PlacesBefore, 27 PlacesAfterwards, 59 TransitionsBefore, 17 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 45 TotalNumberOfCompositions, 1498 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 839, positive: 766, positive conditional: 766, positive unconditional: 0, negative: 73, negative conditional: 73, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 839, positive: 766, positive conditional: 0, positive unconditional: 766, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 839, positive: 766, positive conditional: 0, positive unconditional: 766, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 612, positive: 574, positive conditional: 0, positive unconditional: 574, 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: 612, positive: 563, positive conditional: 0, positive unconditional: 563, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 140, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 839, positive: 192, positive conditional: 0, positive unconditional: 192, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 612, unknown conditional: 0, unknown unconditional: 612] , Statistics on independence cache: Total cache size (in pairs): 612, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.7ms, 28 PlacesBefore, 28 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5ms, 32 PlacesBefore, 32 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 47 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9ms, 34 PlacesBefore, 34 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 170 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 53 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0ms, 39 PlacesBefore, 39 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 206 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 63 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.4ms, 47 PlacesBefore, 47 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 44 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3ms, 52 PlacesBefore, 52 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 21 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5ms, 46 PlacesBefore, 46 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 206 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.5ms, 51 PlacesBefore, 51 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 52 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: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 575, Positive conditional cache size: 0, Positive unconditional cache size: 575, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3312.0ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 385.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2295.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 51 SDtfs, 19 SDslu, 31 SDs, 0 SdLazy, 84 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 88.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=580occurred in iteration=5, InterpolantAutomatonStates: 38, 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: 15.3ms SsaConstructionTime, 115.9ms SatisfiabilityAnalysisTime, 282.9ms InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 391 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...