/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:58:08,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:58:08,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:58:08,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:58:08,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:58:08,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:58:08,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:58:08,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:58:08,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:58:08,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:58:08,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:58:08,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:58:08,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:58:08,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:58:08,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:58:08,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:58:08,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:58:08,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:58:08,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:58:08,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:58:08,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:58:08,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:58:08,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:58:08,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:58:08,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 04:58:08,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 04:58:08,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 04:58:08,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 04:58:08,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 04:58:08,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 04:58:08,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:58:08,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:58:08,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:58:08,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:58:08,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:58:08,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:58:08,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:58:08,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:58:08,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:58:08,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:58:08,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:58:08,342 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-RepeatedVariableLbe.epf [2021-03-25 04:58:08,368 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:58:08,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:58:08,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:58:08,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:58:08,371 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:58:08,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:58:08,372 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:58:08,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:58:08,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:58:08,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:58:08,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:58:08,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:58:08,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:58:08,373 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:58:08,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:58:08,373 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:58:08,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:58:08,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:58:08,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:58:08,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:58:08,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:58:08,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:58:08,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:58:08,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:58:08,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:58:08,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:58:08,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:58:08,375 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:58:08,375 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:58:08,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:58:08,375 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:58:08,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:58:08,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:58:08,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:58:08,666 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:58:08,669 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:58:08,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2021-03-25 04:58:08,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/466153180/5aac83c813a1406f91a25153261002d2/FLAGfcda5b07c [2021-03-25 04:58:09,171 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:58:09,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2021-03-25 04:58:09,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/466153180/5aac83c813a1406f91a25153261002d2/FLAGfcda5b07c [2021-03-25 04:58:09,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/466153180/5aac83c813a1406f91a25153261002d2 [2021-03-25 04:58:09,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:58:09,202 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:58:09,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:58:09,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:58:09,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:58:09,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2443ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09, skipping insertion in model container [2021-03-25 04:58:09,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:58:09,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:58:09,424 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/safe002_tso.oepc.i[950,963] [2021-03-25 04:58:09,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:58:09,586 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:58:09,595 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/safe002_tso.oepc.i[950,963] [2021-03-25 04:58:09,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:58:09,674 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:58:09,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09 WrapperNode [2021-03-25 04:58:09,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:58:09,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:58:09,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:58:09,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:58:09,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:58:09,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:58:09,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:58:09,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:58:09,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (1/1) ... [2021-03-25 04:58:09,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:58:09,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:58:09,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:58:09,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:58:09,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (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 [2021-03-25 04:58:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:58:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:58:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:58:09,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:58:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:58:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:58:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:58:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:58:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:58:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:58:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:58:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:58:09,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:58:09,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:58:09,832 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:58:10,100 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:58:10,100 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 04:58:10,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:58:10 BoogieIcfgContainer [2021-03-25 04:58:10,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:58:10,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:58:10,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:58:10,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:58:10,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:58:09" (1/3) ... [2021-03-25 04:58:10,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef4c00f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:58:10, skipping insertion in model container [2021-03-25 04:58:10,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:58:09" (2/3) ... [2021-03-25 04:58:10,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef4c00f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:58:10, skipping insertion in model container [2021-03-25 04:58:10,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:58:10" (3/3) ... [2021-03-25 04:58:10,121 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2021-03-25 04:58:10,125 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:58:10,128 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 04:58:10,128 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:58:10,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,167 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,167 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,168 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,168 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,171 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,171 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,173 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,173 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,184 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,184 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,186 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:58:10,187 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:58:10,199 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 04:58:10,230 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:58:10,230 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:58:10,230 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:58:10,230 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:58:10,230 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:58:10,230 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:58:10,230 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:58:10,230 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:58:10,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-25 04:58:10,288 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-25 04:58:10,289 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:58:10,291 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 49 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. [2021-03-25 04:58:10,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-25 04:58:10,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-25 04:58:10,295 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:10,303 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-25 04:58:10,307 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-25 04:58:10,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-25 04:58:10,330 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-25 04:58:10,330 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:58:10,331 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. [2021-03-25 04:58:10,333 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-25 04:58:11,686 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-25 04:58:11,686 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-25 04:58:11,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1394 [2021-03-25 04:58:11,693 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-25 04:58:11,694 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:58:11,694 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:11,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:11,694 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:11,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:11,698 INFO L82 PathProgramCache]: Analyzing trace with hash -864788976, now seen corresponding path program 1 times [2021-03-25 04:58:11,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:11,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840922950] [2021-03-25 04:58:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:11,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:11,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:11,911 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:58:11,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:58:11,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:11,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:11,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840922950] [2021-03-25 04:58:11,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:11,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:58:11,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562809479] [2021-03-25 04:58:11,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:58:11,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:11,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:58:11,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:58:11,949 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 116 [2021-03-25 04:58:11,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:11,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:11,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 116 [2021-03-25 04:58:11,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:12,015 INFO L129 PetriNetUnfolder]: 87/209 cut-off events. [2021-03-25 04:58:12,015 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:58:12,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 209 events. 87/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 928 event pairs, 2 based on Foata normal form. 25/225 useless extension candidates. Maximal degree in co-relation 374. Up to 73 conditions per place. [2021-03-25 04:58:12,017 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 11 selfloop transitions, 6 changer transitions 14/43 dead transitions. [2021-03-25 04:58:12,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 157 flow [2021-03-25 04:58:12,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:58:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:58:12,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 622 transitions. [2021-03-25 04:58:12,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7660098522167488 [2021-03-25 04:58:12,027 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 622 transitions. [2021-03-25 04:58:12,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 622 transitions. [2021-03-25 04:58:12,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:12,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 622 transitions. [2021-03-25 04:58:12,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.85714285714286) internal successors, (622), 7 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,038 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,039 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 7 states and 622 transitions. [2021-03-25 04:58:12,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 157 flow [2021-03-25 04:58:12,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 154 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 04:58:12,042 INFO L241 Difference]: Finished difference. Result has 40 places, 25 transitions, 106 flow [2021-03-25 04:58:12,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2021-03-25 04:58:12,043 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-25 04:58:12,044 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:12,044 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 25 transitions, 106 flow [2021-03-25 04:58:12,044 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 25 transitions, 106 flow [2021-03-25 04:58:12,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 106 flow [2021-03-25 04:58:12,053 INFO L129 PetriNetUnfolder]: 42/137 cut-off events. [2021-03-25 04:58:12,053 INFO L130 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2021-03-25 04:58:12,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 137 events. 42/137 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 623 event pairs, 18 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 328. Up to 65 conditions per place. [2021-03-25 04:58:12,055 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-25 04:58:12,563 INFO L154 LiptonReduction]: Checked pairs total: 213 [2021-03-25 04:58:12,564 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:58:12,564 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 520 [2021-03-25 04:58:12,564 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 100 flow [2021-03-25 04:58:12,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 84.8) internal successors, (424), 5 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,565 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:12,565 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:12,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:58:12,565 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:12,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:12,565 INFO L82 PathProgramCache]: Analyzing trace with hash -2134171980, now seen corresponding path program 1 times [2021-03-25 04:58:12,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:12,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705517886] [2021-03-25 04:58:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:12,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:12,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:12,628 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:58:12,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:58:12,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:12,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:12,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:12,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705517886] [2021-03-25 04:58:12,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:12,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:58:12,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463137825] [2021-03-25 04:58:12,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:58:12,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:12,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:58:12,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:58:12,643 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-25 04:58:12,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:12,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-25 04:58:12,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:12,695 INFO L129 PetriNetUnfolder]: 50/147 cut-off events. [2021-03-25 04:58:12,696 INFO L130 PetriNetUnfolder]: For 198/234 co-relation queries the response was YES. [2021-03-25 04:58:12,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 147 events. 50/147 cut-off events. For 198/234 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 646 event pairs, 7 based on Foata normal form. 12/156 useless extension candidates. Maximal degree in co-relation 488. Up to 68 conditions per place. [2021-03-25 04:58:12,700 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 11 selfloop transitions, 9 changer transitions 7/37 dead transitions. [2021-03-25 04:58:12,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 37 transitions, 246 flow [2021-03-25 04:58:12,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:58:12,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:58:12,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 620 transitions. [2021-03-25 04:58:12,702 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7442977190876351 [2021-03-25 04:58:12,702 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 620 transitions. [2021-03-25 04:58:12,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 620 transitions. [2021-03-25 04:58:12,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:12,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 620 transitions. [2021-03-25 04:58:12,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.57142857142857) internal successors, (620), 7 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,710 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,710 INFO L185 Difference]: Start difference. First operand has 34 places, 22 transitions, 100 flow. Second operand 7 states and 620 transitions. [2021-03-25 04:58:12,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 37 transitions, 246 flow [2021-03-25 04:58:12,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 37 transitions, 230 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-03-25 04:58:12,714 INFO L241 Difference]: Finished difference. Result has 44 places, 27 transitions, 177 flow [2021-03-25 04:58:12,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=177, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2021-03-25 04:58:12,714 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-25 04:58:12,714 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:12,714 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 27 transitions, 177 flow [2021-03-25 04:58:12,715 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 27 transitions, 177 flow [2021-03-25 04:58:12,716 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 27 transitions, 177 flow [2021-03-25 04:58:12,722 INFO L129 PetriNetUnfolder]: 40/115 cut-off events. [2021-03-25 04:58:12,723 INFO L130 PetriNetUnfolder]: For 209/216 co-relation queries the response was YES. [2021-03-25 04:58:12,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 115 events. 40/115 cut-off events. For 209/216 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 443 event pairs, 7 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 401. Up to 56 conditions per place. [2021-03-25 04:58:12,724 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-25 04:58:12,727 INFO L154 LiptonReduction]: Checked pairs total: 162 [2021-03-25 04:58:12,727 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:58:12,727 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 04:58:12,728 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 177 flow [2021-03-25 04:58:12,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,728 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:12,728 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:12,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:58:12,729 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:12,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:12,729 INFO L82 PathProgramCache]: Analyzing trace with hash 595570007, now seen corresponding path program 1 times [2021-03-25 04:58:12,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:12,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802087216] [2021-03-25 04:58:12,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:12,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:12,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:12,794 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:58:12,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:58:12,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:12,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:12,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:12,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802087216] [2021-03-25 04:58:12,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:12,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:58:12,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692813380] [2021-03-25 04:58:12,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:58:12,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:12,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:58:12,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:58:12,814 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-25 04:58:12,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:12,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-25 04:58:12,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:12,876 INFO L129 PetriNetUnfolder]: 39/130 cut-off events. [2021-03-25 04:58:12,876 INFO L130 PetriNetUnfolder]: For 379/440 co-relation queries the response was YES. [2021-03-25 04:58:12,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 130 events. 39/130 cut-off events. For 379/440 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 562 event pairs, 0 based on Foata normal form. 15/143 useless extension candidates. Maximal degree in co-relation 533. Up to 58 conditions per place. [2021-03-25 04:58:12,877 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 13 selfloop transitions, 16 changer transitions 9/48 dead transitions. [2021-03-25 04:58:12,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 48 transitions, 433 flow [2021-03-25 04:58:12,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:58:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:58:12,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 625 transitions. [2021-03-25 04:58:12,879 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7503001200480192 [2021-03-25 04:58:12,879 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 625 transitions. [2021-03-25 04:58:12,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 625 transitions. [2021-03-25 04:58:12,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:12,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 625 transitions. [2021-03-25 04:58:12,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.28571428571429) internal successors, (625), 7 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,882 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,882 INFO L185 Difference]: Start difference. First operand has 41 places, 27 transitions, 177 flow. Second operand 7 states and 625 transitions. [2021-03-25 04:58:12,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 48 transitions, 433 flow [2021-03-25 04:58:12,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 48 transitions, 411 flow, removed 8 selfloop flow, removed 4 redundant places. [2021-03-25 04:58:12,886 INFO L241 Difference]: Finished difference. Result has 49 places, 35 transitions, 319 flow [2021-03-25 04:58:12,887 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=319, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2021-03-25 04:58:12,887 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2021-03-25 04:58:12,887 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:12,887 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 35 transitions, 319 flow [2021-03-25 04:58:12,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 35 transitions, 319 flow [2021-03-25 04:58:12,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 35 transitions, 319 flow [2021-03-25 04:58:12,893 INFO L129 PetriNetUnfolder]: 31/100 cut-off events. [2021-03-25 04:58:12,893 INFO L130 PetriNetUnfolder]: For 306/316 co-relation queries the response was YES. [2021-03-25 04:58:12,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 100 events. 31/100 cut-off events. For 306/316 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 392 event pairs, 7 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 418. Up to 45 conditions per place. [2021-03-25 04:58:12,894 INFO L142 LiptonReduction]: Number of co-enabled transitions 204 [2021-03-25 04:58:12,899 INFO L154 LiptonReduction]: Checked pairs total: 228 [2021-03-25 04:58:12,900 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:58:12,900 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-25 04:58:12,901 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 319 flow [2021-03-25 04:58:12,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.0) internal successors, (430), 5 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:12,902 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:12,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:58:12,902 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:12,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:12,902 INFO L82 PathProgramCache]: Analyzing trace with hash -405583851, now seen corresponding path program 1 times [2021-03-25 04:58:12,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:12,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960615291] [2021-03-25 04:58:12,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:12,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:12,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:12,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:12,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:12,943 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:58:12,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:58:12,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:12,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:12,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:12,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960615291] [2021-03-25 04:58:12,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:12,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:58:12,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107594417] [2021-03-25 04:58:12,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:58:12,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:12,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:58:12,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:58:12,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-25 04:58:12,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 86.0) internal successors, (516), 6 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:12,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:12,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-25 04:58:12,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:13,000 INFO L129 PetriNetUnfolder]: 36/119 cut-off events. [2021-03-25 04:58:13,000 INFO L130 PetriNetUnfolder]: For 465/534 co-relation queries the response was YES. [2021-03-25 04:58:13,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 119 events. 36/119 cut-off events. For 465/534 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 510 event pairs, 0 based on Foata normal form. 11/128 useless extension candidates. Maximal degree in co-relation 589. Up to 62 conditions per place. [2021-03-25 04:58:13,005 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 10 selfloop transitions, 9 changer transitions 21/50 dead transitions. [2021-03-25 04:58:13,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 50 transitions, 559 flow [2021-03-25 04:58:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:58:13,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:58:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2021-03-25 04:58:13,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7478991596638656 [2021-03-25 04:58:13,009 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2021-03-25 04:58:13,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2021-03-25 04:58:13,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:13,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2021-03-25 04:58:13,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,012 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,012 INFO L185 Difference]: Start difference. First operand has 46 places, 35 transitions, 319 flow. Second operand 6 states and 534 transitions. [2021-03-25 04:58:13,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 50 transitions, 559 flow [2021-03-25 04:58:13,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 50 transitions, 541 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-25 04:58:13,017 INFO L241 Difference]: Finished difference. Result has 49 places, 26 transitions, 221 flow [2021-03-25 04:58:13,018 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=49, PETRI_TRANSITIONS=26} [2021-03-25 04:58:13,018 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2021-03-25 04:58:13,018 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:13,018 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 26 transitions, 221 flow [2021-03-25 04:58:13,018 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 26 transitions, 221 flow [2021-03-25 04:58:13,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 26 transitions, 221 flow [2021-03-25 04:58:13,022 INFO L129 PetriNetUnfolder]: 16/56 cut-off events. [2021-03-25 04:58:13,022 INFO L130 PetriNetUnfolder]: For 176/182 co-relation queries the response was YES. [2021-03-25 04:58:13,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 56 events. 16/56 cut-off events. For 176/182 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 142 event pairs, 3 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 228. Up to 28 conditions per place. [2021-03-25 04:58:13,022 INFO L142 LiptonReduction]: Number of co-enabled transitions 142 [2021-03-25 04:58:13,024 INFO L154 LiptonReduction]: Checked pairs total: 92 [2021-03-25 04:58:13,024 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:58:13,024 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 04:58:13,025 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 26 transitions, 221 flow [2021-03-25 04:58:13,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.0) internal successors, (516), 6 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,025 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:13,025 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:13,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:58:13,026 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:13,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:13,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1203059227, now seen corresponding path program 1 times [2021-03-25 04:58:13,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:13,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285251414] [2021-03-25 04:58:13,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:13,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:58:13,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,086 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:58:13,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:58:13,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:13,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285251414] [2021-03-25 04:58:13,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:13,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:58:13,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937155924] [2021-03-25 04:58:13,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:58:13,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:13,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:58:13,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:58:13,100 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-25 04:58:13,100 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 26 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,100 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:13,100 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-25 04:58:13,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:13,132 INFO L129 PetriNetUnfolder]: 12/54 cut-off events. [2021-03-25 04:58:13,133 INFO L130 PetriNetUnfolder]: For 223/239 co-relation queries the response was YES. [2021-03-25 04:58:13,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 54 events. 12/54 cut-off events. For 223/239 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 148 event pairs, 3 based on Foata normal form. 8/61 useless extension candidates. Maximal degree in co-relation 251. Up to 26 conditions per place. [2021-03-25 04:58:13,133 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 11 selfloop transitions, 7 changer transitions 4/32 dead transitions. [2021-03-25 04:58:13,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 32 transitions, 318 flow [2021-03-25 04:58:13,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:58:13,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:58:13,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 528 transitions. [2021-03-25 04:58:13,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7394957983193278 [2021-03-25 04:58:13,135 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 528 transitions. [2021-03-25 04:58:13,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 528 transitions. [2021-03-25 04:58:13,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:13,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 528 transitions. [2021-03-25 04:58:13,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,137 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,137 INFO L185 Difference]: Start difference. First operand has 48 places, 26 transitions, 221 flow. Second operand 6 states and 528 transitions. [2021-03-25 04:58:13,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 32 transitions, 318 flow [2021-03-25 04:58:13,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 32 transitions, 269 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 04:58:13,140 INFO L241 Difference]: Finished difference. Result has 48 places, 27 transitions, 213 flow [2021-03-25 04:58:13,141 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=213, PETRI_PLACES=48, PETRI_TRANSITIONS=27} [2021-03-25 04:58:13,141 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 17 predicate places. [2021-03-25 04:58:13,141 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:13,141 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 27 transitions, 213 flow [2021-03-25 04:58:13,141 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 27 transitions, 213 flow [2021-03-25 04:58:13,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 27 transitions, 213 flow [2021-03-25 04:58:13,145 INFO L129 PetriNetUnfolder]: 10/46 cut-off events. [2021-03-25 04:58:13,145 INFO L130 PetriNetUnfolder]: For 103/109 co-relation queries the response was YES. [2021-03-25 04:58:13,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 46 events. 10/46 cut-off events. For 103/109 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 121 event pairs, 3 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 180. Up to 20 conditions per place. [2021-03-25 04:58:13,146 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 04:58:13,147 INFO L154 LiptonReduction]: Checked pairs total: 77 [2021-03-25 04:58:13,147 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:58:13,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 04:58:13,149 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 27 transitions, 213 flow [2021-03-25 04:58:13,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.2) internal successors, (431), 5 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,150 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:13,151 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:13,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:58:13,151 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:13,151 INFO L82 PathProgramCache]: Analyzing trace with hash -523046289, now seen corresponding path program 1 times [2021-03-25 04:58:13,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:13,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654340026] [2021-03-25 04:58:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:13,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,212 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 04:58:13,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 04:58:13,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:13,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654340026] [2021-03-25 04:58:13,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:13,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:58:13,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365165799] [2021-03-25 04:58:13,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:58:13,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:13,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:58:13,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:58:13,232 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 119 [2021-03-25 04:58:13,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 27 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:13,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 119 [2021-03-25 04:58:13,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:13,263 INFO L129 PetriNetUnfolder]: 11/59 cut-off events. [2021-03-25 04:58:13,263 INFO L130 PetriNetUnfolder]: For 165/179 co-relation queries the response was YES. [2021-03-25 04:58:13,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 59 events. 11/59 cut-off events. For 165/179 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 194 event pairs, 3 based on Foata normal form. 3/61 useless extension candidates. Maximal degree in co-relation 276. Up to 28 conditions per place. [2021-03-25 04:58:13,264 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 6 selfloop transitions, 8 changer transitions 11/35 dead transitions. [2021-03-25 04:58:13,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 35 transitions, 348 flow [2021-03-25 04:58:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:58:13,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:58:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 528 transitions. [2021-03-25 04:58:13,266 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7394957983193278 [2021-03-25 04:58:13,266 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 528 transitions. [2021-03-25 04:58:13,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 528 transitions. [2021-03-25 04:58:13,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:13,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 528 transitions. [2021-03-25 04:58:13,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,269 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,269 INFO L185 Difference]: Start difference. First operand has 46 places, 27 transitions, 213 flow. Second operand 6 states and 528 transitions. [2021-03-25 04:58:13,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 35 transitions, 348 flow [2021-03-25 04:58:13,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 35 transitions, 327 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-25 04:58:13,272 INFO L241 Difference]: Finished difference. Result has 50 places, 24 transitions, 189 flow [2021-03-25 04:58:13,272 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=189, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2021-03-25 04:58:13,272 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 19 predicate places. [2021-03-25 04:58:13,272 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:13,272 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 24 transitions, 189 flow [2021-03-25 04:58:13,273 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 24 transitions, 189 flow [2021-03-25 04:58:13,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 24 transitions, 189 flow [2021-03-25 04:58:13,276 INFO L129 PetriNetUnfolder]: 7/35 cut-off events. [2021-03-25 04:58:13,276 INFO L130 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2021-03-25 04:58:13,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 35 events. 7/35 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 66 event pairs, 2 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 145. Up to 17 conditions per place. [2021-03-25 04:58:13,277 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-25 04:58:13,316 INFO L154 LiptonReduction]: Checked pairs total: 64 [2021-03-25 04:58:13,317 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 04:58:13,317 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-03-25 04:58:13,317 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 23 transitions, 190 flow [2021-03-25 04:58:13,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,317 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:13,317 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:13,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:58:13,318 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:13,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:13,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1444388037, now seen corresponding path program 2 times [2021-03-25 04:58:13,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:13,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243958603] [2021-03-25 04:58:13,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:13,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:58:13,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:13,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243958603] [2021-03-25 04:58:13,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:13,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:58:13,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373604607] [2021-03-25 04:58:13,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:58:13,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:13,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:58:13,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:58:13,383 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2021-03-25 04:58:13,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 23 transitions, 190 flow. Second operand has 5 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) [2021-03-25 04:58:13,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:13,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2021-03-25 04:58:13,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:13,432 INFO L129 PetriNetUnfolder]: 7/40 cut-off events. [2021-03-25 04:58:13,432 INFO L130 PetriNetUnfolder]: For 133/134 co-relation queries the response was YES. [2021-03-25 04:58:13,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 40 events. 7/40 cut-off events. For 133/134 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 99 event pairs, 4 based on Foata normal form. 3/41 useless extension candidates. Maximal degree in co-relation 188. Up to 21 conditions per place. [2021-03-25 04:58:13,432 INFO L132 encePairwiseOnDemand]: 115/121 looper letters, 5 selfloop transitions, 2 changer transitions 7/24 dead transitions. [2021-03-25 04:58:13,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 24 transitions, 230 flow [2021-03-25 04:58:13,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:58:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:58:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2021-03-25 04:58:13,434 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7534435261707989 [2021-03-25 04:58:13,434 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 547 transitions. [2021-03-25 04:58:13,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 547 transitions. [2021-03-25 04:58:13,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:13,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 547 transitions. [2021-03-25 04:58:13,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,436 INFO L185 Difference]: Start difference. First operand has 48 places, 23 transitions, 190 flow. Second operand 6 states and 547 transitions. [2021-03-25 04:58:13,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 24 transitions, 230 flow [2021-03-25 04:58:13,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 24 transitions, 174 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-25 04:58:13,437 INFO L241 Difference]: Finished difference. Result has 44 places, 17 transitions, 90 flow [2021-03-25 04:58:13,437 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=90, PETRI_PLACES=44, PETRI_TRANSITIONS=17} [2021-03-25 04:58:13,437 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-25 04:58:13,438 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:13,438 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 17 transitions, 90 flow [2021-03-25 04:58:13,438 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 17 transitions, 90 flow [2021-03-25 04:58:13,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 17 transitions, 90 flow [2021-03-25 04:58:13,440 INFO L129 PetriNetUnfolder]: 2/22 cut-off events. [2021-03-25 04:58:13,440 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-03-25 04:58:13,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 22 events. 2/22 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 2 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 60. Up to 8 conditions per place. [2021-03-25 04:58:13,440 INFO L142 LiptonReduction]: Number of co-enabled transitions 54 [2021-03-25 04:58:13,458 INFO L154 LiptonReduction]: Checked pairs total: 52 [2021-03-25 04:58:13,458 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:58:13,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 04:58:13,458 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 16 transitions, 86 flow [2021-03-25 04:58:13,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 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) [2021-03-25 04:58:13,458 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:13,459 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:13,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:58:13,459 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:13,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:13,459 INFO L82 PathProgramCache]: Analyzing trace with hash -934597767, now seen corresponding path program 1 times [2021-03-25 04:58:13,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:13,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614165677] [2021-03-25 04:58:13,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:13,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:58:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:13,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614165677] [2021-03-25 04:58:13,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:13,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:58:13,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129298487] [2021-03-25 04:58:13,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:58:13,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:13,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:58:13,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:58:13,499 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 122 [2021-03-25 04:58:13,499 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 16 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,499 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:13,499 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 122 [2021-03-25 04:58:13,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:13,529 INFO L129 PetriNetUnfolder]: 35/87 cut-off events. [2021-03-25 04:58:13,529 INFO L130 PetriNetUnfolder]: For 358/394 co-relation queries the response was YES. [2021-03-25 04:58:13,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 87 events. 35/87 cut-off events. For 358/394 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 298 event pairs, 19 based on Foata normal form. 12/92 useless extension candidates. Maximal degree in co-relation 249. Up to 49 conditions per place. [2021-03-25 04:58:13,530 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 5 selfloop transitions, 4 changer transitions 7/26 dead transitions. [2021-03-25 04:58:13,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 26 transitions, 138 flow [2021-03-25 04:58:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:58:13,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:58:13,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 468 transitions. [2021-03-25 04:58:13,531 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7672131147540984 [2021-03-25 04:58:13,531 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 468 transitions. [2021-03-25 04:58:13,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 468 transitions. [2021-03-25 04:58:13,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:13,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 468 transitions. [2021-03-25 04:58:13,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.6) internal successors, (468), 5 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,534 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,534 INFO L185 Difference]: Start difference. First operand has 38 places, 16 transitions, 86 flow. Second operand 5 states and 468 transitions. [2021-03-25 04:58:13,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 26 transitions, 138 flow [2021-03-25 04:58:13,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 110 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-03-25 04:58:13,535 INFO L241 Difference]: Finished difference. Result has 36 places, 19 transitions, 94 flow [2021-03-25 04:58:13,535 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=94, PETRI_PLACES=36, PETRI_TRANSITIONS=19} [2021-03-25 04:58:13,536 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-25 04:58:13,536 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:13,536 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 19 transitions, 94 flow [2021-03-25 04:58:13,536 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 19 transitions, 94 flow [2021-03-25 04:58:13,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 19 transitions, 94 flow [2021-03-25 04:58:13,540 INFO L129 PetriNetUnfolder]: 29/71 cut-off events. [2021-03-25 04:58:13,540 INFO L130 PetriNetUnfolder]: For 90/97 co-relation queries the response was YES. [2021-03-25 04:58:13,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 71 events. 29/71 cut-off events. For 90/97 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 218 event pairs, 17 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 207. Up to 38 conditions per place. [2021-03-25 04:58:13,541 INFO L142 LiptonReduction]: Number of co-enabled transitions 38 [2021-03-25 04:58:13,619 INFO L154 LiptonReduction]: Checked pairs total: 14 [2021-03-25 04:58:13,620 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:58:13,620 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-25 04:58:13,621 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 105 flow [2021-03-25 04:58:13,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,622 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:13,622 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:13,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:58:13,622 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:13,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:13,622 INFO L82 PathProgramCache]: Analyzing trace with hash -109931954, now seen corresponding path program 1 times [2021-03-25 04:58:13,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:13,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067621360] [2021-03-25 04:58:13,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:13,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:58:13,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:13,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067621360] [2021-03-25 04:58:13,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:13,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:58:13,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814514932] [2021-03-25 04:58:13,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:58:13,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:13,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:58:13,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:58:13,663 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 125 [2021-03-25 04:58:13,664 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:13,664 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 125 [2021-03-25 04:58:13,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:13,692 INFO L129 PetriNetUnfolder]: 18/58 cut-off events. [2021-03-25 04:58:13,693 INFO L130 PetriNetUnfolder]: For 171/207 co-relation queries the response was YES. [2021-03-25 04:58:13,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 58 events. 18/58 cut-off events. For 171/207 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 163 event pairs, 4 based on Foata normal form. 17/73 useless extension candidates. Maximal degree in co-relation 206. Up to 35 conditions per place. [2021-03-25 04:58:13,693 INFO L132 encePairwiseOnDemand]: 117/125 looper letters, 5 selfloop transitions, 7 changer transitions 7/29 dead transitions. [2021-03-25 04:58:13,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 201 flow [2021-03-25 04:58:13,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:58:13,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:58:13,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 561 transitions. [2021-03-25 04:58:13,695 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.748 [2021-03-25 04:58:13,695 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 561 transitions. [2021-03-25 04:58:13,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 561 transitions. [2021-03-25 04:58:13,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:13,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 561 transitions. [2021-03-25 04:58:13,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,697 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,697 INFO L185 Difference]: Start difference. First operand has 34 places, 19 transitions, 105 flow. Second operand 6 states and 561 transitions. [2021-03-25 04:58:13,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 201 flow [2021-03-25 04:58:13,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 188 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 04:58:13,699 INFO L241 Difference]: Finished difference. Result has 39 places, 22 transitions, 148 flow [2021-03-25 04:58:13,699 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2021-03-25 04:58:13,699 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2021-03-25 04:58:13,699 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:13,699 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 22 transitions, 148 flow [2021-03-25 04:58:13,699 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 22 transitions, 148 flow [2021-03-25 04:58:13,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 22 transitions, 148 flow [2021-03-25 04:58:13,705 INFO L129 PetriNetUnfolder]: 13/47 cut-off events. [2021-03-25 04:58:13,705 INFO L130 PetriNetUnfolder]: For 125/137 co-relation queries the response was YES. [2021-03-25 04:58:13,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 47 events. 13/47 cut-off events. For 125/137 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 110 event pairs, 4 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 173. Up to 23 conditions per place. [2021-03-25 04:58:13,706 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-25 04:58:13,789 INFO L154 LiptonReduction]: Checked pairs total: 9 [2021-03-25 04:58:13,789 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:58:13,789 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-03-25 04:58:13,790 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 157 flow [2021-03-25 04:58:13,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,790 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:13,790 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:13,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:58:13,790 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:13,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:13,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1266846604, now seen corresponding path program 1 times [2021-03-25 04:58:13,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:13,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017980667] [2021-03-25 04:58:13,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:13,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:13,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:13,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:58:13,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:13,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017980667] [2021-03-25 04:58:13,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:13,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:58:13,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896358350] [2021-03-25 04:58:13,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:58:13,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:13,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:58:13,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:58:13,835 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 128 [2021-03-25 04:58:13,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:13,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 128 [2021-03-25 04:58:13,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:13,877 INFO L129 PetriNetUnfolder]: 7/36 cut-off events. [2021-03-25 04:58:13,877 INFO L130 PetriNetUnfolder]: For 148/156 co-relation queries the response was YES. [2021-03-25 04:58:13,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 36 events. 7/36 cut-off events. For 148/156 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 82 event pairs, 0 based on Foata normal form. 8/43 useless extension candidates. Maximal degree in co-relation 155. Up to 20 conditions per place. [2021-03-25 04:58:13,877 INFO L132 encePairwiseOnDemand]: 118/128 looper letters, 2 selfloop transitions, 10 changer transitions 4/26 dead transitions. [2021-03-25 04:58:13,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 225 flow [2021-03-25 04:58:13,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:58:13,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:58:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 648 transitions. [2021-03-25 04:58:13,879 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7232142857142857 [2021-03-25 04:58:13,879 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 648 transitions. [2021-03-25 04:58:13,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 648 transitions. [2021-03-25 04:58:13,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:13,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 648 transitions. [2021-03-25 04:58:13,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 92.57142857142857) internal successors, (648), 7 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 128.0) internal successors, (1024), 8 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,881 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 128.0) internal successors, (1024), 8 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:13,881 INFO L185 Difference]: Start difference. First operand has 37 places, 22 transitions, 157 flow. Second operand 7 states and 648 transitions. [2021-03-25 04:58:13,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 225 flow [2021-03-25 04:58:13,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 26 transitions, 179 flow, removed 19 selfloop flow, removed 5 redundant places. [2021-03-25 04:58:13,883 INFO L241 Difference]: Finished difference. Result has 41 places, 22 transitions, 149 flow [2021-03-25 04:58:13,883 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=149, PETRI_PLACES=41, PETRI_TRANSITIONS=22} [2021-03-25 04:58:13,883 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 10 predicate places. [2021-03-25 04:58:13,883 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:13,883 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 22 transitions, 149 flow [2021-03-25 04:58:13,884 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 22 transitions, 149 flow [2021-03-25 04:58:13,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 22 transitions, 149 flow [2021-03-25 04:58:13,887 INFO L129 PetriNetUnfolder]: 5/30 cut-off events. [2021-03-25 04:58:13,887 INFO L130 PetriNetUnfolder]: For 54/56 co-relation queries the response was YES. [2021-03-25 04:58:13,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 30 events. 5/30 cut-off events. For 54/56 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 57 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 95. Up to 11 conditions per place. [2021-03-25 04:58:13,887 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 04:58:14,046 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 04:58:14,046 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 04:58:14,046 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 163 [2021-03-25 04:58:14,047 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 141 flow [2021-03-25 04:58:14,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:14,047 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:58:14,047 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:58:14,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:58:14,048 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:58:14,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:58:14,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1284295481, now seen corresponding path program 1 times [2021-03-25 04:58:14,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:58:14,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933243255] [2021-03-25 04:58:14,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:58:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:58:14,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:14,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:58:14,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:14,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:14,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:14,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:14,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:58:14,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:58:14,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:58:14,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933243255] [2021-03-25 04:58:14,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:58:14,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:58:14,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682952822] [2021-03-25 04:58:14,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:58:14,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:58:14,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:58:14,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:58:14,093 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 132 [2021-03-25 04:58:14,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 141 flow. Second operand has 5 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:14,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:58:14,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 132 [2021-03-25 04:58:14,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:58:14,107 INFO L129 PetriNetUnfolder]: 5/21 cut-off events. [2021-03-25 04:58:14,107 INFO L130 PetriNetUnfolder]: For 68/69 co-relation queries the response was YES. [2021-03-25 04:58:14,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 21 events. 5/21 cut-off events. For 68/69 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2021-03-25 04:58:14,108 INFO L132 encePairwiseOnDemand]: 126/132 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2021-03-25 04:58:14,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 17 transitions, 135 flow [2021-03-25 04:58:14,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:58:14,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:58:14,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 387 transitions. [2021-03-25 04:58:14,109 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7329545454545454 [2021-03-25 04:58:14,109 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 387 transitions. [2021-03-25 04:58:14,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 387 transitions. [2021-03-25 04:58:14,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:58:14,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 387 transitions. [2021-03-25 04:58:14,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:14,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:14,111 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:14,111 INFO L185 Difference]: Start difference. First operand has 35 places, 18 transitions, 141 flow. Second operand 4 states and 387 transitions. [2021-03-25 04:58:14,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 17 transitions, 135 flow [2021-03-25 04:58:14,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 17 transitions, 81 flow, removed 10 selfloop flow, removed 8 redundant places. [2021-03-25 04:58:14,111 INFO L241 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2021-03-25 04:58:14,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2021-03-25 04:58:14,112 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2021-03-25 04:58:14,112 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:58:14,112 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 0 transitions, 0 flow [2021-03-25 04:58:14,112 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 0 transitions, 0 flow [2021-03-25 04:58:14,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 04:58:14,112 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 04:58:14,112 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:58:14,112 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. [2021-03-25 04:58:14,112 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 04:58:14,113 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 04:58:14,113 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:58:14,113 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 04:58:14,113 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 04:58:14,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:58:14,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:58:14,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:58:14 BasicIcfg [2021-03-25 04:58:14,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:58:14,117 INFO L168 Benchmark]: Toolchain (without parser) took 4915.01 ms. Allocated memory was 348.1 MB in the beginning and 429.9 MB in the end (delta: 81.8 MB). Free memory was 311.6 MB in the beginning and 216.6 MB in the end (delta: 95.0 MB). Peak memory consumption was 178.2 MB. Max. memory is 16.0 GB. [2021-03-25 04:58:14,117 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 348.1 MB. Free memory was 329.5 MB in the beginning and 329.4 MB in the end (delta: 77.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:58:14,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.75 ms. Allocated memory is still 348.1 MB. Free memory was 311.5 MB in the beginning and 311.1 MB in the end (delta: 345.5 kB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. [2021-03-25 04:58:14,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.30 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 309.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:58:14,118 INFO L168 Benchmark]: Boogie Preprocessor took 29.95 ms. Allocated memory is still 348.1 MB. Free memory was 309.0 MB in the beginning and 306.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:58:14,119 INFO L168 Benchmark]: RCFGBuilder took 353.31 ms. Allocated memory is still 348.1 MB. Free memory was 306.3 MB in the beginning and 282.8 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:58:14,119 INFO L168 Benchmark]: TraceAbstraction took 4013.47 ms. Allocated memory was 348.1 MB in the beginning and 429.9 MB in the end (delta: 81.8 MB). Free memory was 282.8 MB in the beginning and 216.6 MB in the end (delta: 66.2 MB). Peak memory consumption was 148.0 MB. Max. memory is 16.0 GB. [2021-03-25 04:58:14,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 348.1 MB. Free memory was 329.5 MB in the beginning and 329.4 MB in the end (delta: 77.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 459.75 ms. Allocated memory is still 348.1 MB. Free memory was 311.5 MB in the beginning and 311.1 MB in the end (delta: 345.5 kB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 41.30 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 309.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.95 ms. Allocated memory is still 348.1 MB. Free memory was 309.0 MB in the beginning and 306.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 353.31 ms. Allocated memory is still 348.1 MB. Free memory was 306.3 MB in the beginning and 282.8 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4013.47 ms. Allocated memory was 348.1 MB in the beginning and 429.9 MB in the end (delta: 81.8 MB). Free memory was 282.8 MB in the beginning and 216.6 MB in the end (delta: 66.2 MB). Peak memory consumption was 148.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1379.0ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 692, positive: 645, positive conditional: 0, positive unconditional: 645, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 443, positive: 426, positive conditional: 0, positive unconditional: 426, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 443, positive: 426, positive conditional: 0, positive unconditional: 426, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 692, positive: 219, positive conditional: 0, positive unconditional: 219, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 443, unknown conditional: 0, unknown unconditional: 443] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 32, Positive conditional cache size: 0, Positive unconditional cache size: 32, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 519.7ms, 40 PlacesBefore, 34 PlacesAfterwards, 25 TransitionsBefore, 22 TransitionsAfterwards, 150 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 213 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 42, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.0ms, 44 PlacesBefore, 41 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 176 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 162 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.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] , Cache Queries: [ total: 37, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1ms, 49 PlacesBefore, 46 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 228 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 32, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9ms, 49 PlacesBefore, 48 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 92 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 20, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0ms, 48 PlacesBefore, 46 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 77 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 16, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.9ms, 50 PlacesBefore, 48 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 102 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 64 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 27, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.0ms, 44 PlacesBefore, 38 PlacesAfterwards, 17 TransitionsBefore, 16 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 52 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 16, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 83.7ms, 36 PlacesBefore, 34 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 38 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.4ms, 39 PlacesBefore, 37 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 30 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 9 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 162.6ms, 41 PlacesBefore, 35 PlacesAfterwards, 22 TransitionsBefore, 18 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8ms, 29 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3898.9ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 591.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1460.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 82 SDtfs, 80 SDslu, 107 SDs, 0 SdLazy, 248 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 166.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 194.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=319occurred in iteration=3, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.7ms SsaConstructionTime, 210.0ms SatisfiabilityAnalysisTime, 473.6ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 589 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...