/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/safe005_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:29:12,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:29:12,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:29:12,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:29:12,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:29:12,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:29:12,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:29:12,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:29:12,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:29:12,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:29:12,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:29:12,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:29:12,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:29:12,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:29:12,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:29:12,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:29:12,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:29:12,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:29:12,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:29:12,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:29:12,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:29:12,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:29:12,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:29:12,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:29:12,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:29:12,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:29:12,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:29:12,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:29:12,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:29:12,228 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:29:12,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:29:12,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:29:12,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:29:12,231 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:29:12,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:29:12,232 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:29:12,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:29:12,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:29:12,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:29:12,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:29:12,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:29:12,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:29:12,233 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:29:12,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:29:12,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:29:12,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:29:12,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:29:12,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:29:12,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:29:12,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:29:12,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:29:12,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:29:12,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:29:12,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:29:12,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:29:12,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:29:12,234 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:29:12,234 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:29:12,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:29:12,234 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:29:12,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:29:12,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:29:12,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:29:12,475 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:29:12,476 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:29:12,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2021-03-26 10:29:12,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f54f1631/151ee0bf1c154e1495563f5de1f9d8ec/FLAGf55e07cda [2021-03-26 10:29:12,911 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:29:12,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2021-03-26 10:29:12,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f54f1631/151ee0bf1c154e1495563f5de1f9d8ec/FLAGf55e07cda [2021-03-26 10:29:12,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f54f1631/151ee0bf1c154e1495563f5de1f9d8ec [2021-03-26 10:29:12,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:29:12,940 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:29:12,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:29:12,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:29:12,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:29:12,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:29:12" (1/1) ... [2021-03-26 10:29:12,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d53317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:12, skipping insertion in model container [2021-03-26 10:29:12,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:29:12" (1/1) ... [2021-03-26 10:29:12,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:29:12,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:29:13,121 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/safe005_tso.oepc.i[950,963] [2021-03-26 10:29:13,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:29:13,268 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:29:13,275 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/safe005_tso.oepc.i[950,963] [2021-03-26 10:29:13,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:29:13,333 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:29:13,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13 WrapperNode [2021-03-26 10:29:13,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:29:13,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:29:13,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:29:13,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:29:13,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (1/1) ... [2021-03-26 10:29:13,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (1/1) ... [2021-03-26 10:29:13,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:29:13,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:29:13,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:29:13,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:29:13,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (1/1) ... [2021-03-26 10:29:13,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (1/1) ... [2021-03-26 10:29:13,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (1/1) ... [2021-03-26 10:29:13,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (1/1) ... [2021-03-26 10:29:13,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (1/1) ... [2021-03-26 10:29:13,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (1/1) ... [2021-03-26 10:29:13,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (1/1) ... [2021-03-26 10:29:13,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:29:13,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:29:13,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:29:13,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:29:13,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:29:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:29:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:29:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:29:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:29:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:29:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:29:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:29:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:29:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:29:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:29:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:29:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:29:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:29:13,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:29:13,447 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:29:13,718 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:29:13,718 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:29:13,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:29:13 BoogieIcfgContainer [2021-03-26 10:29:13,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:29:13,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:29:13,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:29:13,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:29:13,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:29:12" (1/3) ... [2021-03-26 10:29:13,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdf119b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:29:13, skipping insertion in model container [2021-03-26 10:29:13,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:29:13" (2/3) ... [2021-03-26 10:29:13,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdf119b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:29:13, skipping insertion in model container [2021-03-26 10:29:13,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:29:13" (3/3) ... [2021-03-26 10:29:13,724 INFO L111 eAbstractionObserver]: Analyzing ICFG safe005_tso.oepc.i [2021-03-26 10:29:13,727 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:29:13,731 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:29:13,732 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:29:13,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,755 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,755 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,756 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,756 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,757 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,757 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,759 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,760 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,760 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,763 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,763 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,763 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,766 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,767 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,767 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,771 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,771 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,771 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:29:13,772 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:29:13,785 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:29:13,805 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:29:13,805 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:29:13,805 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:29:13,806 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:29:13,806 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:29:13,806 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:29:13,806 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:29:13,806 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:29:13,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:29:13,856 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-26 10:29:13,856 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:13,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 10:29:13,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:29:13,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-26 10:29:13,864 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:13,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:29:13,875 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:29:13,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-26 10:29:13,895 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-26 10:29:13,895 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:13,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 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. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 10:29:13,898 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 10:29:15,142 INFO L154 LiptonReduction]: Checked pairs total: 1010 [2021-03-26 10:29:15,143 INFO L156 LiptonReduction]: Total number of compositions: 38 [2021-03-26 10:29:15,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1284 [2021-03-26 10:29:15,157 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 10:29:15,158 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:15,158 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:15,158 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:15,158 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:15,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:15,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1013680624, now seen corresponding path program 1 times [2021-03-26 10:29:15,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:15,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821456522] [2021-03-26 10:29:15,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:15,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:15,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:15,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821456522] [2021-03-26 10:29:15,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:15,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 10:29:15,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211208863] [2021-03-26 10:29:15,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:29:15,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:15,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:29:15,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:29:15,351 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 113 [2021-03-26 10:29:15,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 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) [2021-03-26 10:29:15,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:15,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 113 [2021-03-26 10:29:15,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:15,367 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-26 10:29:15,371 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:15,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:29:15,372 INFO L132 encePairwiseOnDemand]: 110/113 looper letters, 1 selfloop transitions, 2 changer transitions 0/22 dead transitions. [2021-03-26 10:29:15,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 22 transitions, 59 flow [2021-03-26 10:29:15,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:29:15,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:29:15,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2021-03-26 10:29:15,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.887905604719764 [2021-03-26 10:29:15,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2021-03-26 10:29:15,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2021-03-26 10:29:15,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:15,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2021-03-26 10:29:15,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:15,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:15,397 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:15,398 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 3 states and 301 transitions. [2021-03-26 10:29:15,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 22 transitions, 59 flow [2021-03-26 10:29:15,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 56 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:29:15,400 INFO L241 Difference]: Finished difference. Result has 32 places, 22 transitions, 58 flow [2021-03-26 10:29:15,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2021-03-26 10:29:15,402 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-26 10:29:15,402 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:15,402 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 22 transitions, 58 flow [2021-03-26 10:29:15,403 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 22 transitions, 58 flow [2021-03-26 10:29:15,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 22 transitions, 58 flow [2021-03-26 10:29:15,408 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-26 10:29:15,408 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:15,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 10:29:15,409 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 10:29:15,904 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:29:16,092 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:29:16,154 INFO L154 LiptonReduction]: Checked pairs total: 437 [2021-03-26 10:29:16,155 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:29:16,155 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 753 [2021-03-26 10:29:16,156 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2021-03-26 10:29:16,156 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) [2021-03-26 10:29:16,156 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:16,156 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:16,156 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:29:16,156 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:16,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:16,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1355243279, now seen corresponding path program 1 times [2021-03-26 10:29:16,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:16,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948097775] [2021-03-26 10:29:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:16,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:29:16,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:16,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948097775] [2021-03-26 10:29:16,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:16,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:29:16,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107492262] [2021-03-26 10:29:16,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:29:16,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:16,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:29:16,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:29:16,214 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 118 [2021-03-26 10:29:16,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:16,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 118 [2021-03-26 10:29:16,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:16,241 INFO L129 PetriNetUnfolder]: 17/67 cut-off events. [2021-03-26 10:29:16,241 INFO L130 PetriNetUnfolder]: For 15/19 co-relation queries the response was YES. [2021-03-26 10:29:16,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 67 events. 17/67 cut-off events. For 15/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 242 event pairs, 3 based on Foata normal form. 9/75 useless extension candidates. Maximal degree in co-relation 123. Up to 24 conditions per place. [2021-03-26 10:29:16,242 INFO L132 encePairwiseOnDemand]: 113/118 looper letters, 6 selfloop transitions, 4 changer transitions 3/24 dead transitions. [2021-03-26 10:29:16,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 24 transitions, 91 flow [2021-03-26 10:29:16,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:29:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:29:16,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 391 transitions. [2021-03-26 10:29:16,243 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8283898305084746 [2021-03-26 10:29:16,243 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 391 transitions. [2021-03-26 10:29:16,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 391 transitions. [2021-03-26 10:29:16,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:16,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 391 transitions. [2021-03-26 10:29:16,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,246 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,246 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states and 391 transitions. [2021-03-26 10:29:16,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 24 transitions, 91 flow [2021-03-26 10:29:16,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 85 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:29:16,247 INFO L241 Difference]: Finished difference. Result has 30 places, 19 transitions, 70 flow [2021-03-26 10:29:16,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2021-03-26 10:29:16,247 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2021-03-26 10:29:16,247 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:16,247 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 19 transitions, 70 flow [2021-03-26 10:29:16,247 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 19 transitions, 70 flow [2021-03-26 10:29:16,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 19 transitions, 70 flow [2021-03-26 10:29:16,250 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-26 10:29:16,250 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-26 10:29:16,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 30 events. 3/30 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 64 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 55. Up to 10 conditions per place. [2021-03-26 10:29:16,251 INFO L142 LiptonReduction]: Number of co-enabled transitions 130 [2021-03-26 10:29:16,256 INFO L154 LiptonReduction]: Checked pairs total: 88 [2021-03-26 10:29:16,256 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:29:16,256 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 10:29:16,257 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 70 flow [2021-03-26 10:29:16,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,258 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:16,258 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:16,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:29:16,258 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:16,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:16,258 INFO L82 PathProgramCache]: Analyzing trace with hash 21009677, now seen corresponding path program 1 times [2021-03-26 10:29:16,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:16,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089208297] [2021-03-26 10:29:16,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:16,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,311 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:29:16,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:29:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:16,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089208297] [2021-03-26 10:29:16,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:16,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:29:16,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792076957] [2021-03-26 10:29:16,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:29:16,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:16,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:29:16,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:29:16,328 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 118 [2021-03-26 10:29:16,328 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,328 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:16,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 118 [2021-03-26 10:29:16,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:16,347 INFO L129 PetriNetUnfolder]: 12/57 cut-off events. [2021-03-26 10:29:16,347 INFO L130 PetriNetUnfolder]: For 79/87 co-relation queries the response was YES. [2021-03-26 10:29:16,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 57 events. 12/57 cut-off events. For 79/87 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 184 event pairs, 5 based on Foata normal form. 10/64 useless extension candidates. Maximal degree in co-relation 132. Up to 18 conditions per place. [2021-03-26 10:29:16,348 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 8 selfloop transitions, 5 changer transitions 1/24 dead transitions. [2021-03-26 10:29:16,348 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 114 flow [2021-03-26 10:29:16,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:29:16,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:29:16,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2021-03-26 10:29:16,350 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7923728813559322 [2021-03-26 10:29:16,350 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2021-03-26 10:29:16,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2021-03-26 10:29:16,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:16,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2021-03-26 10:29:16,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,352 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,352 INFO L185 Difference]: Start difference. First operand has 30 places, 19 transitions, 70 flow. Second operand 4 states and 374 transitions. [2021-03-26 10:29:16,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 114 flow [2021-03-26 10:29:16,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 107 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:29:16,353 INFO L241 Difference]: Finished difference. Result has 34 places, 22 transitions, 103 flow [2021-03-26 10:29:16,354 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=103, PETRI_PLACES=34, PETRI_TRANSITIONS=22} [2021-03-26 10:29:16,354 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2021-03-26 10:29:16,354 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:16,354 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 22 transitions, 103 flow [2021-03-26 10:29:16,354 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 22 transitions, 103 flow [2021-03-26 10:29:16,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 22 transitions, 103 flow [2021-03-26 10:29:16,357 INFO L129 PetriNetUnfolder]: 4/42 cut-off events. [2021-03-26 10:29:16,357 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2021-03-26 10:29:16,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 42 events. 4/42 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 123 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 93. Up to 12 conditions per place. [2021-03-26 10:29:16,358 INFO L142 LiptonReduction]: Number of co-enabled transitions 140 [2021-03-26 10:29:16,361 INFO L154 LiptonReduction]: Checked pairs total: 89 [2021-03-26 10:29:16,361 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:29:16,362 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 10:29:16,362 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 103 flow [2021-03-26 10:29:16,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,362 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:16,363 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:16,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:29:16,363 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:16,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:16,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1286077055, now seen corresponding path program 1 times [2021-03-26 10:29:16,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:16,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536032769] [2021-03-26 10:29:16,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:16,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:29:16,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,396 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:29:16,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:29:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:16,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536032769] [2021-03-26 10:29:16,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:16,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:29:16,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583258696] [2021-03-26 10:29:16,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:29:16,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:16,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:29:16,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:29:16,411 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 118 [2021-03-26 10:29:16,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:16,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 118 [2021-03-26 10:29:16,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:16,463 INFO L129 PetriNetUnfolder]: 12/79 cut-off events. [2021-03-26 10:29:16,463 INFO L130 PetriNetUnfolder]: For 92/100 co-relation queries the response was YES. [2021-03-26 10:29:16,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 79 events. 12/79 cut-off events. For 92/100 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 349 event pairs, 0 based on Foata normal form. 5/82 useless extension candidates. Maximal degree in co-relation 216. Up to 20 conditions per place. [2021-03-26 10:29:16,464 INFO L132 encePairwiseOnDemand]: 111/118 looper letters, 5 selfloop transitions, 8 changer transitions 11/34 dead transitions. [2021-03-26 10:29:16,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 34 transitions, 219 flow [2021-03-26 10:29:16,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:29:16,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:29:16,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 652 transitions. [2021-03-26 10:29:16,466 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7893462469733656 [2021-03-26 10:29:16,466 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 652 transitions. [2021-03-26 10:29:16,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 652 transitions. [2021-03-26 10:29:16,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:16,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 652 transitions. [2021-03-26 10:29:16,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.14285714285714) internal successors, (652), 7 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,469 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,469 INFO L185 Difference]: Start difference. First operand has 34 places, 22 transitions, 103 flow. Second operand 7 states and 652 transitions. [2021-03-26 10:29:16,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 34 transitions, 219 flow [2021-03-26 10:29:16,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 34 transitions, 206 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 10:29:16,470 INFO L241 Difference]: Finished difference. Result has 44 places, 23 transitions, 152 flow [2021-03-26 10:29:16,471 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=152, PETRI_PLACES=44, PETRI_TRANSITIONS=23} [2021-03-26 10:29:16,471 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 12 predicate places. [2021-03-26 10:29:16,471 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:16,471 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 23 transitions, 152 flow [2021-03-26 10:29:16,471 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 23 transitions, 152 flow [2021-03-26 10:29:16,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 23 transitions, 152 flow [2021-03-26 10:29:16,475 INFO L129 PetriNetUnfolder]: 4/41 cut-off events. [2021-03-26 10:29:16,475 INFO L130 PetriNetUnfolder]: For 97/98 co-relation queries the response was YES. [2021-03-26 10:29:16,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 41 events. 4/41 cut-off events. For 97/98 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 116 event pairs, 0 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 125. Up to 11 conditions per place. [2021-03-26 10:29:16,475 INFO L142 LiptonReduction]: Number of co-enabled transitions 120 [2021-03-26 10:29:16,498 INFO L154 LiptonReduction]: Checked pairs total: 191 [2021-03-26 10:29:16,498 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:29:16,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-26 10:29:16,499 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 23 transitions, 157 flow [2021-03-26 10:29:16,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,499 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:16,499 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:16,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:29:16,500 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:16,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:16,500 INFO L82 PathProgramCache]: Analyzing trace with hash -628106113, now seen corresponding path program 1 times [2021-03-26 10:29:16,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:16,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828409372] [2021-03-26 10:29:16,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:16,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:29:16,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,532 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:29:16,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:29:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:16,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828409372] [2021-03-26 10:29:16,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:16,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:29:16,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725717555] [2021-03-26 10:29:16,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:29:16,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:16,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:29:16,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:29:16,540 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 119 [2021-03-26 10:29:16,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 23 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:16,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 119 [2021-03-26 10:29:16,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:16,565 INFO L129 PetriNetUnfolder]: 7/50 cut-off events. [2021-03-26 10:29:16,565 INFO L130 PetriNetUnfolder]: For 170/195 co-relation queries the response was YES. [2021-03-26 10:29:16,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 50 events. 7/50 cut-off events. For 170/195 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 159 event pairs, 0 based on Foata normal form. 7/55 useless extension candidates. Maximal degree in co-relation 174. Up to 21 conditions per place. [2021-03-26 10:29:16,566 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 3 selfloop transitions, 4 changer transitions 12/28 dead transitions. [2021-03-26 10:29:16,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 28 transitions, 226 flow [2021-03-26 10:29:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:29:16,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:29:16,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 452 transitions. [2021-03-26 10:29:16,567 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7596638655462185 [2021-03-26 10:29:16,567 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 452 transitions. [2021-03-26 10:29:16,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 452 transitions. [2021-03-26 10:29:16,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:16,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 452 transitions. [2021-03-26 10:29:16,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,569 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) [2021-03-26 10:29:16,569 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) [2021-03-26 10:29:16,570 INFO L185 Difference]: Start difference. First operand has 42 places, 23 transitions, 157 flow. Second operand 5 states and 452 transitions. [2021-03-26 10:29:16,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 28 transitions, 226 flow [2021-03-26 10:29:16,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 28 transitions, 190 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-03-26 10:29:16,571 INFO L241 Difference]: Finished difference. Result has 41 places, 16 transitions, 86 flow [2021-03-26 10:29:16,571 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=16} [2021-03-26 10:29:16,572 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2021-03-26 10:29:16,572 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:16,572 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 16 transitions, 86 flow [2021-03-26 10:29:16,572 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 16 transitions, 86 flow [2021-03-26 10:29:16,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 16 transitions, 86 flow [2021-03-26 10:29:16,574 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 10:29:16,574 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-03-26 10:29:16,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 18 events. 0/18 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 10:29:16,574 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-26 10:29:16,611 INFO L154 LiptonReduction]: Checked pairs total: 48 [2021-03-26 10:29:16,611 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:29:16,611 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-26 10:29:16,613 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 14 transitions, 82 flow [2021-03-26 10:29:16,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,613 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:16,613 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:16,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:29:16,613 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:16,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:16,614 INFO L82 PathProgramCache]: Analyzing trace with hash -364335563, now seen corresponding path program 1 times [2021-03-26 10:29:16,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:16,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260700089] [2021-03-26 10:29:16,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:16,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,638 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:29:16,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:29:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:16,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260700089] [2021-03-26 10:29:16,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:16,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:29:16,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552116486] [2021-03-26 10:29:16,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:29:16,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:16,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:29:16,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:29:16,644 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2021-03-26 10:29:16,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 14 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:16,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2021-03-26 10:29:16,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:16,666 INFO L129 PetriNetUnfolder]: 23/60 cut-off events. [2021-03-26 10:29:16,667 INFO L130 PetriNetUnfolder]: For 209/216 co-relation queries the response was YES. [2021-03-26 10:29:16,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 60 events. 23/60 cut-off events. For 209/216 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 184 event pairs, 9 based on Foata normal form. 5/64 useless extension candidates. Maximal degree in co-relation 196. Up to 39 conditions per place. [2021-03-26 10:29:16,667 INFO L132 encePairwiseOnDemand]: 115/121 looper letters, 5 selfloop transitions, 3 changer transitions 8/24 dead transitions. [2021-03-26 10:29:16,667 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 24 transitions, 161 flow [2021-03-26 10:29:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:29:16,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:29:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 463 transitions. [2021-03-26 10:29:16,669 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7652892561983471 [2021-03-26 10:29:16,669 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 463 transitions. [2021-03-26 10:29:16,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 463 transitions. [2021-03-26 10:29:16,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:16,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 463 transitions. [2021-03-26 10:29:16,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.6) internal successors, (463), 5 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,671 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,671 INFO L185 Difference]: Start difference. First operand has 37 places, 14 transitions, 82 flow. Second operand 5 states and 463 transitions. [2021-03-26 10:29:16,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 24 transitions, 161 flow [2021-03-26 10:29:16,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 101 flow, removed 17 selfloop flow, removed 12 redundant places. [2021-03-26 10:29:16,672 INFO L241 Difference]: Finished difference. Result has 32 places, 16 transitions, 77 flow [2021-03-26 10:29:16,672 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=77, PETRI_PLACES=32, PETRI_TRANSITIONS=16} [2021-03-26 10:29:16,672 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-26 10:29:16,672 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:16,672 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 16 transitions, 77 flow [2021-03-26 10:29:16,673 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 16 transitions, 77 flow [2021-03-26 10:29:16,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 16 transitions, 77 flow [2021-03-26 10:29:16,675 INFO L129 PetriNetUnfolder]: 14/41 cut-off events. [2021-03-26 10:29:16,675 INFO L130 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2021-03-26 10:29:16,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 41 events. 14/41 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 89 event pairs, 8 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 112. Up to 30 conditions per place. [2021-03-26 10:29:16,676 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-26 10:29:16,708 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 10:29:16,708 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:29:16,709 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 10:29:16,709 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 16 transitions, 79 flow [2021-03-26 10:29:16,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,709 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:16,709 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:16,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:29:16,710 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:16,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:16,710 INFO L82 PathProgramCache]: Analyzing trace with hash 2067788702, now seen corresponding path program 1 times [2021-03-26 10:29:16,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:16,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298261288] [2021-03-26 10:29:16,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:16,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,735 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:29:16,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:29:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:16,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298261288] [2021-03-26 10:29:16,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:16,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:29:16,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850530622] [2021-03-26 10:29:16,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:29:16,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:16,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:29:16,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:29:16,741 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 122 [2021-03-26 10:29:16,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 16 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:16,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 122 [2021-03-26 10:29:16,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:16,769 INFO L129 PetriNetUnfolder]: 9/38 cut-off events. [2021-03-26 10:29:16,769 INFO L130 PetriNetUnfolder]: For 67/73 co-relation queries the response was YES. [2021-03-26 10:29:16,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 38 events. 9/38 cut-off events. For 67/73 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 84 event pairs, 1 based on Foata normal form. 5/42 useless extension candidates. Maximal degree in co-relation 127. Up to 27 conditions per place. [2021-03-26 10:29:16,769 INFO L132 encePairwiseOnDemand]: 115/122 looper letters, 3 selfloop transitions, 5 changer transitions 10/26 dead transitions. [2021-03-26 10:29:16,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 176 flow [2021-03-26 10:29:16,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:29:16,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:29:16,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2021-03-26 10:29:16,771 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7568306010928961 [2021-03-26 10:29:16,771 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 554 transitions. [2021-03-26 10:29:16,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 554 transitions. [2021-03-26 10:29:16,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:16,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 554 transitions. [2021-03-26 10:29:16,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,773 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,773 INFO L185 Difference]: Start difference. First operand has 30 places, 16 transitions, 79 flow. Second operand 6 states and 554 transitions. [2021-03-26 10:29:16,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 176 flow [2021-03-26 10:29:16,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 171 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 10:29:16,774 INFO L241 Difference]: Finished difference. Result has 36 places, 16 transitions, 98 flow [2021-03-26 10:29:16,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=98, PETRI_PLACES=36, PETRI_TRANSITIONS=16} [2021-03-26 10:29:16,775 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2021-03-26 10:29:16,775 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:16,775 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 16 transitions, 98 flow [2021-03-26 10:29:16,775 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 16 transitions, 98 flow [2021-03-26 10:29:16,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 16 transitions, 98 flow [2021-03-26 10:29:16,777 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-26 10:29:16,777 INFO L130 PetriNetUnfolder]: For 39/41 co-relation queries the response was YES. [2021-03-26 10:29:16,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 21 events. 2/21 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 21 event pairs, 1 based on Foata normal form. 2/22 useless extension candidates. Maximal degree in co-relation 66. Up to 10 conditions per place. [2021-03-26 10:29:16,777 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-26 10:29:16,867 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 10:29:16,867 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 10:29:16,867 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92 [2021-03-26 10:29:16,867 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 15 transitions, 99 flow [2021-03-26 10:29:16,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,868 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:29:16,868 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:29:16,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:29:16,868 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:29:16,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:29:16,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1335700331, now seen corresponding path program 1 times [2021-03-26 10:29:16,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:29:16,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315576093] [2021-03-26 10:29:16,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:29:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:29:16,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:29:16,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:29:16,909 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:29:16,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:29:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:29:16,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315576093] [2021-03-26 10:29:16,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:29:16,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:29:16,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405549476] [2021-03-26 10:29:16,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:29:16,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:29:16,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:29:16,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:29:16,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 124 [2021-03-26 10:29:16,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 15 transitions, 99 flow. Second operand has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:29:16,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 124 [2021-03-26 10:29:16,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:29:16,930 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-03-26 10:29:16,931 INFO L130 PetriNetUnfolder]: For 41/44 co-relation queries the response was YES. [2021-03-26 10:29:16,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 17 events. 1/17 cut-off events. For 41/44 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 60. Up to 6 conditions per place. [2021-03-26 10:29:16,931 INFO L132 encePairwiseOnDemand]: 117/124 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2021-03-26 10:29:16,931 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 14 transitions, 95 flow [2021-03-26 10:29:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:29:16,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:29:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 452 transitions. [2021-03-26 10:29:16,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7290322580645161 [2021-03-26 10:29:16,932 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 452 transitions. [2021-03-26 10:29:16,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 452 transitions. [2021-03-26 10:29:16,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:29:16,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 452 transitions. [2021-03-26 10:29:16,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,934 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,935 INFO L185 Difference]: Start difference. First operand has 33 places, 15 transitions, 99 flow. Second operand 5 states and 452 transitions. [2021-03-26 10:29:16,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 14 transitions, 95 flow [2021-03-26 10:29:16,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 14 transitions, 70 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-26 10:29:16,935 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-03-26 10:29:16,935 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-03-26 10:29:16,935 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2021-03-26 10:29:16,936 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:29:16,936 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:29:16,936 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:29:16,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:29:16,936 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:29:16,936 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:29:16,936 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. [2021-03-26 10:29:16,936 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:29:16,936 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:29:16,936 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:29:16,936 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:29:16,937 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:29:16,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:29:16,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:29:16,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:29:16 BasicIcfg [2021-03-26 10:29:16,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:29:16,940 INFO L168 Benchmark]: Toolchain (without parser) took 4000.08 ms. Allocated memory was 375.4 MB in the beginning and 450.9 MB in the end (delta: 75.5 MB). Free memory was 338.6 MB in the beginning and 171.1 MB in the end (delta: 167.5 MB). Peak memory consumption was 244.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:16,941 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 375.4 MB. Free memory was 356.7 MB in the beginning and 356.7 MB in the end (delta: 70.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:29:16,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.46 ms. Allocated memory is still 375.4 MB. Free memory was 338.4 MB in the beginning and 339.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:16,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.46 ms. Allocated memory is still 375.4 MB. Free memory was 339.8 MB in the beginning and 337.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:16,941 INFO L168 Benchmark]: Boogie Preprocessor took 13.99 ms. Allocated memory is still 375.4 MB. Free memory was 337.8 MB in the beginning and 336.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:16,941 INFO L168 Benchmark]: RCFGBuilder took 339.60 ms. Allocated memory is still 375.4 MB. Free memory was 336.7 MB in the beginning and 312.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:16,942 INFO L168 Benchmark]: TraceAbstraction took 3219.43 ms. Allocated memory was 375.4 MB in the beginning and 450.9 MB in the end (delta: 75.5 MB). Free memory was 311.5 MB in the beginning and 171.1 MB in the end (delta: 140.5 MB). Peak memory consumption was 216.0 MB. Max. memory is 16.0 GB. [2021-03-26 10:29:16,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 375.4 MB. Free memory was 356.7 MB in the beginning and 356.7 MB in the end (delta: 70.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 391.46 ms. Allocated memory is still 375.4 MB. Free memory was 338.4 MB in the beginning and 339.8 MB in the end (delta: -1.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.46 ms. Allocated memory is still 375.4 MB. Free memory was 339.8 MB in the beginning and 337.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.99 ms. Allocated memory is still 375.4 MB. Free memory was 337.8 MB in the beginning and 336.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 339.60 ms. Allocated memory is still 375.4 MB. Free memory was 336.7 MB in the beginning and 312.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3219.43 ms. Allocated memory was 375.4 MB in the beginning and 450.9 MB in the end (delta: 75.5 MB). Free memory was 311.5 MB in the beginning and 171.1 MB in the end (delta: 140.5 MB). Peak memory consumption was 216.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1268.1ms, 69 PlacesBefore, 32 PlacesAfterwards, 60 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 38 TotalNumberOfCompositions, 1010 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 667, positive: 631, positive conditional: 631, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 667, positive: 631, positive conditional: 0, positive unconditional: 631, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 667, positive: 631, positive conditional: 0, positive unconditional: 631, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 516, positive: 497, positive conditional: 0, positive unconditional: 497, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 516, positive: 491, positive conditional: 0, positive unconditional: 491, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 667, positive: 134, positive conditional: 0, positive unconditional: 134, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 516, unknown conditional: 0, unknown unconditional: 516] , Statistics on independence cache: Total cache size (in pairs): 516, Positive cache size: 497, Positive conditional cache size: 0, Positive unconditional cache size: 497, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 752.1ms, 32 PlacesBefore, 27 PlacesAfterwards, 22 TransitionsBefore, 17 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 437 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 170, positive: 130, positive conditional: 130, positive unconditional: 0, negative: 40, negative conditional: 40, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 170, positive: 130, positive conditional: 2, positive unconditional: 128, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 170, positive: 130, positive conditional: 2, positive unconditional: 128, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 57, positive: 42, positive conditional: 1, positive unconditional: 41, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 57, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 24, positive: 9, positive conditional: 1, positive unconditional: 8, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 78, positive: 37, positive conditional: 13, positive unconditional: 24, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 170, positive: 88, positive conditional: 1, positive unconditional: 87, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 57, unknown conditional: 1, unknown unconditional: 56] , Statistics on independence cache: Total cache size (in pairs): 573, Positive cache size: 539, Positive conditional cache size: 1, Positive unconditional cache size: 538, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7ms, 30 PlacesBefore, 30 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 130 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 88 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 44, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 44, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 44, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 582, Positive cache size: 545, Positive conditional cache size: 1, Positive unconditional cache size: 544, Negative cache size: 37, Negative conditional cache size: 0, Negative unconditional cache size: 37, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4ms, 34 PlacesBefore, 34 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 89 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 56, positive: 48, positive conditional: 48, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 56, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 56, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 56, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 591, Positive cache size: 553, Positive conditional cache size: 1, Positive unconditional cache size: 552, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.1ms, 44 PlacesBefore, 42 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 120 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 191 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 112, positive: 95, positive conditional: 95, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 112, positive: 95, positive conditional: 10, positive unconditional: 85, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 112, positive: 95, positive conditional: 10, positive unconditional: 85, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 112, positive: 93, positive conditional: 8, positive unconditional: 85, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 593, Positive cache size: 555, Positive conditional cache size: 3, Positive unconditional cache size: 552, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.9ms, 41 PlacesBefore, 37 PlacesAfterwards, 16 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 48 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 18, positive conditional: 5, positive unconditional: 13, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 18, positive conditional: 5, positive unconditional: 13, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 16, positive conditional: 4, positive unconditional: 12, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 2, unknown conditional: 1, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 595, Positive cache size: 557, Positive conditional cache size: 4, Positive unconditional cache size: 553, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.8ms, 32 PlacesBefore, 30 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 22 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 596, Positive cache size: 558, Positive conditional cache size: 5, Positive unconditional cache size: 553, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 91.8ms, 36 PlacesBefore, 33 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, 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: 2, positive: 2, positive conditional: 1, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 597, Positive cache size: 559, Positive conditional cache size: 5, Positive unconditional cache size: 554, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 30 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): 597, Positive cache size: 559, Positive conditional cache size: 5, Positive unconditional cache size: 554, 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, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3135.8ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 297.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1346.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 42 SDtfs, 28 SDslu, 26 SDs, 0 SdLazy, 121 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 95.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred in iteration=4, InterpolantAutomatonStates: 39, 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: 11.0ms SsaConstructionTime, 111.0ms SatisfiabilityAnalysisTime, 285.3ms InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 357 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...