/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:54:06,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:54:06,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:54:06,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:54:06,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:54:06,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:54:06,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:54:06,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:54:06,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:54:06,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:54:06,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:54:06,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:54:06,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:54:06,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:54:06,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:54:06,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:54:06,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:54:06,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:54:06,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:54:06,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:54:06,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:54:06,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:54:06,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:54:06,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:54:06,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:54:06,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:54:06,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:54:06,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:54:06,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:54:06,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:54:06,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:54:06,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:54:06,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:54:06,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:54:06,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:54:06,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:54:06,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:54:06,755 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:54:06,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:54:06,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:54:06,758 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:54:06,758 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:54:06,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:54:06,758 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:54:06,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:54:06,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:54:06,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:54:06,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:54:06,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:54:06,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:54:06,760 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:54:06,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:54:06,761 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:54:06,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:54:06,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:54:06,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:54:06,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:54:06,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:54:06,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:54:06,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:54:06,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:54:06,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:54:06,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:54:06,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:54:06,763 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:54:06,764 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:54:06,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:54:06,764 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:54:07,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:54:07,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:54:07,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:54:07,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:54:07,339 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:54:07,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2021-04-28 23:54:07,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab710ab2/2a124f79bb6941848abc649344d55474/FLAG245bd34b1 [2021-04-28 23:54:08,472 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:54:08,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.oepc.i [2021-04-28 23:54:08,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab710ab2/2a124f79bb6941848abc649344d55474/FLAG245bd34b1 [2021-04-28 23:54:08,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ab710ab2/2a124f79bb6941848abc649344d55474 [2021-04-28 23:54:08,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:54:08,604 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:54:08,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:54:08,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:54:08,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:54:08,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:54:08" (1/1) ... [2021-04-28 23:54:08,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e34add3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:08, skipping insertion in model container [2021-04-28 23:54:08,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:54:08" (1/1) ... [2021-04-28 23:54:08,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:54:08,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:54:09,060 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/safe015_tso.oepc.i[950,963] [2021-04-28 23:54:09,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:54:09,292 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:54:09,310 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/safe015_tso.oepc.i[950,963] [2021-04-28 23:54:09,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:54:09,471 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:54:09,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09 WrapperNode [2021-04-28 23:54:09,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:54:09,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:54:09,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:54:09,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:54:09,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (1/1) ... [2021-04-28 23:54:09,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (1/1) ... [2021-04-28 23:54:09,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:54:09,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:54:09,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:54:09,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:54:09,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (1/1) ... [2021-04-28 23:54:09,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (1/1) ... [2021-04-28 23:54:09,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (1/1) ... [2021-04-28 23:54:09,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (1/1) ... [2021-04-28 23:54:09,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (1/1) ... [2021-04-28 23:54:09,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (1/1) ... [2021-04-28 23:54:09,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (1/1) ... [2021-04-28 23:54:09,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:54:09,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:54:09,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:54:09,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:54:09,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (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 [2021-04-28 23:54:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:54:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:54:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:54:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:54:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:54:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:54:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:54:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:54:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:54:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:54:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:54:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:54:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:54:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:54:09,755 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:54:10,312 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:54:10,313 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:54:10,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:54:10 BoogieIcfgContainer [2021-04-28 23:54:10,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:54:10,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:54:10,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:54:10,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:54:10,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:54:08" (1/3) ... [2021-04-28 23:54:10,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1284fb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:54:10, skipping insertion in model container [2021-04-28 23:54:10,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:09" (2/3) ... [2021-04-28 23:54:10,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1284fb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:54:10, skipping insertion in model container [2021-04-28 23:54:10,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:54:10" (3/3) ... [2021-04-28 23:54:10,327 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.oepc.i [2021-04-28 23:54:10,335 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:54:10,342 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:54:10,343 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:54:10,387 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,388 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,388 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,388 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,389 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,389 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,389 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,389 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,390 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,390 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,391 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,391 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,392 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,392 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,392 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,392 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,393 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,393 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,393 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,393 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,394 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,395 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,395 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,395 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,396 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,396 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,396 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,396 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,397 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,397 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,397 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,398 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,398 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,399 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,401 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,402 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,403 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,403 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,409 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,409 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,409 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,410 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,412 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,413 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,413 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:10,416 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:54:10,445 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:54:10,478 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:54:10,478 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:54:10,478 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:54:10,478 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:54:10,479 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:54:10,479 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:54:10,479 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:54:10,479 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:54:10,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:54:10,546 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-28 23:54:10,547 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:54:10,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:54:10,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:54:10,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-28 23:54:10,560 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:10,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:54:10,584 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:54:10,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-28 23:54:10,608 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-28 23:54:10,609 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:54:10,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:54:10,614 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:54:15,926 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:54:16,100 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:54:16,262 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:54:16,421 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:54:16,574 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:54:16,883 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:54:17,070 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:54:17,388 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:54:17,753 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:54:17,962 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:54:18,184 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:54:18,412 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:54:18,615 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:54:18,804 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:54:19,029 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:54:19,271 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:54:19,514 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:54:19,749 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:54:19,975 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:54:20,209 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:54:20,431 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:54:20,654 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:54:20,872 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:54:21,107 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:54:21,414 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:54:21,708 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:54:22,027 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:54:22,132 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:54:22,375 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:54:22,480 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:54:22,522 INFO L158 LiptonReduction]: Checked pairs total: 6612 [2021-04-28 23:54:22,523 INFO L160 LiptonReduction]: Total number of compositions: 91 [2021-04-28 23:54:22,527 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11969 [2021-04-28 23:54:22,553 INFO L129 PetriNetUnfolder]: 0/63 cut-off events. [2021-04-28 23:54:22,554 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:54:22,554 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:22,555 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:22,555 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:22,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:22,562 INFO L82 PathProgramCache]: Analyzing trace with hash 2098921344, now seen corresponding path program 1 times [2021-04-28 23:54:22,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:22,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381418033] [2021-04-28 23:54:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:23,026 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:54:23,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:54:23,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:23,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381418033] [2021-04-28 23:54:23,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:23,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:54:23,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442714993] [2021-04-28 23:54:23,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:54:23,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:23,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:54:23,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:54:23,091 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:54:23,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:23,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:23,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:54:23,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:23,440 INFO L129 PetriNetUnfolder]: 439/1150 cut-off events. [2021-04-28 23:54:23,440 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:54:23,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1880 conditions, 1150 events. 439/1150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 9759 event pairs, 137 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 1837. Up to 362 conditions per place. [2021-04-28 23:54:23,457 INFO L132 encePairwiseOnDemand]: 146/165 looper letters, 7 selfloop transitions, 7 changer transitions 33/78 dead transitions. [2021-04-28 23:54:23,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 78 transitions, 233 flow [2021-04-28 23:54:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:54:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:54:23,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2021-04-28 23:54:23,488 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2021-04-28 23:54:23,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2021-04-28 23:54:23,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2021-04-28 23:54:23,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:23,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2021-04-28 23:54:23,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:23,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 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) [2021-04-28 23:54:23,523 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 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) [2021-04-28 23:54:23,526 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 345 transitions. [2021-04-28 23:54:23,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 78 transitions, 233 flow [2021-04-28 23:54:23,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 230 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:54:23,535 INFO L241 Difference]: Finished difference. Result has 79 places, 45 transitions, 138 flow [2021-04-28 23:54:23,538 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=79, PETRI_TRANSITIONS=45} [2021-04-28 23:54:23,540 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-04-28 23:54:23,540 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:23,540 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 45 transitions, 138 flow [2021-04-28 23:54:23,542 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 45 transitions, 138 flow [2021-04-28 23:54:23,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 138 flow [2021-04-28 23:54:23,581 INFO L129 PetriNetUnfolder]: 88/321 cut-off events. [2021-04-28 23:54:23,582 INFO L130 PetriNetUnfolder]: For 42/45 co-relation queries the response was YES. [2021-04-28 23:54:23,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 321 events. 88/321 cut-off events. For 42/45 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2165 event pairs, 22 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 569. Up to 87 conditions per place. [2021-04-28 23:54:23,595 INFO L146 LiptonReduction]: Number of co-enabled transitions 1040 [2021-04-28 23:54:23,601 INFO L158 LiptonReduction]: Checked pairs total: 24 [2021-04-28 23:54:23,602 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:23,602 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-04-28 23:54:23,605 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 138 flow [2021-04-28 23:54:23,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:23,607 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:23,609 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:23,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:54:23,610 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:23,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:23,612 INFO L82 PathProgramCache]: Analyzing trace with hash 642050643, now seen corresponding path program 1 times [2021-04-28 23:54:23,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:23,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866008863] [2021-04-28 23:54:23,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:23,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:23,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:23,799 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:54:23,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:54:23,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:23,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866008863] [2021-04-28 23:54:23,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:23,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:54:23,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309665897] [2021-04-28 23:54:23,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:54:23,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:23,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:54:23,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:54:23,827 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:54:23,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:23,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:23,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:54:23,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:23,931 INFO L129 PetriNetUnfolder]: 73/255 cut-off events. [2021-04-28 23:54:23,932 INFO L130 PetriNetUnfolder]: For 53/154 co-relation queries the response was YES. [2021-04-28 23:54:23,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 255 events. 73/255 cut-off events. For 53/154 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1469 event pairs, 6 based on Foata normal form. 2/176 useless extension candidates. Maximal degree in co-relation 608. Up to 72 conditions per place. [2021-04-28 23:54:23,936 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 14 selfloop transitions, 8 changer transitions 0/53 dead transitions. [2021-04-28 23:54:23,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 222 flow [2021-04-28 23:54:23,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:54:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:54:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-04-28 23:54:23,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2021-04-28 23:54:23,940 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-04-28 23:54:23,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-04-28 23:54:23,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:23,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-04-28 23:54:23,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 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) [2021-04-28 23:54:23,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:23,948 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:23,948 INFO L185 Difference]: Start difference. First operand has 50 places, 45 transitions, 138 flow. Second operand 4 states and 430 transitions. [2021-04-28 23:54:23,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 222 flow [2021-04-28 23:54:23,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:54:23,953 INFO L241 Difference]: Finished difference. Result has 54 places, 49 transitions, 182 flow [2021-04-28 23:54:23,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2021-04-28 23:54:23,955 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -24 predicate places. [2021-04-28 23:54:23,955 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:23,955 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 49 transitions, 182 flow [2021-04-28 23:54:23,956 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 49 transitions, 182 flow [2021-04-28 23:54:23,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 49 transitions, 182 flow [2021-04-28 23:54:23,986 INFO L129 PetriNetUnfolder]: 73/255 cut-off events. [2021-04-28 23:54:23,987 INFO L130 PetriNetUnfolder]: For 106/110 co-relation queries the response was YES. [2021-04-28 23:54:23,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 255 events. 73/255 cut-off events. For 106/110 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1516 event pairs, 18 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 557. Up to 72 conditions per place. [2021-04-28 23:54:23,995 INFO L146 LiptonReduction]: Number of co-enabled transitions 1152 [2021-04-28 23:54:24,003 INFO L158 LiptonReduction]: Checked pairs total: 28 [2021-04-28 23:54:24,004 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:24,004 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-04-28 23:54:24,006 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 182 flow [2021-04-28 23:54:24,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,007 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:24,007 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:24,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:54:24,008 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:24,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:24,008 INFO L82 PathProgramCache]: Analyzing trace with hash 642050891, now seen corresponding path program 1 times [2021-04-28 23:54:24,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:24,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78839674] [2021-04-28 23:54:24,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:24,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:24,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:24,072 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:54:24,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:54:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:24,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78839674] [2021-04-28 23:54:24,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:24,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:54:24,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039374788] [2021-04-28 23:54:24,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:54:24,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:24,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:54:24,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:54:24,095 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:54:24,096 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:24,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:54:24,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:24,167 INFO L129 PetriNetUnfolder]: 56/207 cut-off events. [2021-04-28 23:54:24,167 INFO L130 PetriNetUnfolder]: For 116/228 co-relation queries the response was YES. [2021-04-28 23:54:24,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 207 events. 56/207 cut-off events. For 116/228 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1103 event pairs, 0 based on Foata normal form. 8/150 useless extension candidates. Maximal degree in co-relation 564. Up to 60 conditions per place. [2021-04-28 23:54:24,171 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 16 selfloop transitions, 12 changer transitions 0/59 dead transitions. [2021-04-28 23:54:24,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 302 flow [2021-04-28 23:54:24,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:54:24,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:54:24,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-04-28 23:54:24,175 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2021-04-28 23:54:24,175 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-04-28 23:54:24,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-04-28 23:54:24,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:24,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-04-28 23:54:24,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 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) [2021-04-28 23:54:24,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,181 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,182 INFO L185 Difference]: Start difference. First operand has 54 places, 49 transitions, 182 flow. Second operand 4 states and 430 transitions. [2021-04-28 23:54:24,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 302 flow [2021-04-28 23:54:24,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 59 transitions, 297 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:54:24,187 INFO L241 Difference]: Finished difference. Result has 59 places, 55 transitions, 284 flow [2021-04-28 23:54:24,188 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=284, PETRI_PLACES=59, PETRI_TRANSITIONS=55} [2021-04-28 23:54:24,188 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -19 predicate places. [2021-04-28 23:54:24,188 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:24,188 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 55 transitions, 284 flow [2021-04-28 23:54:24,189 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 55 transitions, 284 flow [2021-04-28 23:54:24,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 55 transitions, 284 flow [2021-04-28 23:54:24,220 INFO L129 PetriNetUnfolder]: 56/219 cut-off events. [2021-04-28 23:54:24,220 INFO L130 PetriNetUnfolder]: For 254/269 co-relation queries the response was YES. [2021-04-28 23:54:24,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 219 events. 56/219 cut-off events. For 254/269 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1254 event pairs, 1 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 596. Up to 60 conditions per place. [2021-04-28 23:54:24,228 INFO L146 LiptonReduction]: Number of co-enabled transitions 1342 [2021-04-28 23:54:24,238 INFO L158 LiptonReduction]: Checked pairs total: 34 [2021-04-28 23:54:24,238 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:24,238 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-04-28 23:54:24,240 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 55 transitions, 284 flow [2021-04-28 23:54:24,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:24,241 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:24,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:54:24,242 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:24,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:24,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1571264036, now seen corresponding path program 1 times [2021-04-28 23:54:24,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:24,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72735115] [2021-04-28 23:54:24,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:24,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:24,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:54:24,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:24,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:24,305 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:54:24,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:54:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:24,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72735115] [2021-04-28 23:54:24,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:24,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:54:24,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026064567] [2021-04-28 23:54:24,327 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:54:24,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:24,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:54:24,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:54:24,330 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:54:24,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 55 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,332 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:24,332 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:54:24,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:24,416 INFO L129 PetriNetUnfolder]: 43/183 cut-off events. [2021-04-28 23:54:24,416 INFO L130 PetriNetUnfolder]: For 209/327 co-relation queries the response was YES. [2021-04-28 23:54:24,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 183 events. 43/183 cut-off events. For 209/327 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 982 event pairs, 0 based on Foata normal form. 11/131 useless extension candidates. Maximal degree in co-relation 582. Up to 47 conditions per place. [2021-04-28 23:54:24,420 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 15 selfloop transitions, 18 changer transitions 0/64 dead transitions. [2021-04-28 23:54:24,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 426 flow [2021-04-28 23:54:24,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:54:24,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:54:24,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-04-28 23:54:24,423 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2021-04-28 23:54:24,424 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-04-28 23:54:24,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-04-28 23:54:24,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:24,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-04-28 23:54:24,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 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) [2021-04-28 23:54:24,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,430 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,430 INFO L185 Difference]: Start difference. First operand has 59 places, 55 transitions, 284 flow. Second operand 4 states and 430 transitions. [2021-04-28 23:54:24,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 426 flow [2021-04-28 23:54:24,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:54:24,436 INFO L241 Difference]: Finished difference. Result has 64 places, 60 transitions, 421 flow [2021-04-28 23:54:24,437 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=421, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2021-04-28 23:54:24,437 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -14 predicate places. [2021-04-28 23:54:24,437 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:24,438 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 60 transitions, 421 flow [2021-04-28 23:54:24,438 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 60 transitions, 421 flow [2021-04-28 23:54:24,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 421 flow [2021-04-28 23:54:24,466 INFO L129 PetriNetUnfolder]: 43/198 cut-off events. [2021-04-28 23:54:24,467 INFO L130 PetriNetUnfolder]: For 386/415 co-relation queries the response was YES. [2021-04-28 23:54:24,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 198 events. 43/198 cut-off events. For 386/415 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1175 event pairs, 0 based on Foata normal form. 1/129 useless extension candidates. Maximal degree in co-relation 621. Up to 47 conditions per place. [2021-04-28 23:54:24,475 INFO L146 LiptonReduction]: Number of co-enabled transitions 1498 [2021-04-28 23:54:24,487 INFO L158 LiptonReduction]: Checked pairs total: 39 [2021-04-28 23:54:24,487 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:24,488 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-04-28 23:54:24,489 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 421 flow [2021-04-28 23:54:24,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,490 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:24,490 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:24,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:54:24,491 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:24,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:24,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1342747754, now seen corresponding path program 1 times [2021-04-28 23:54:24,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:24,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610656950] [2021-04-28 23:54:24,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:24,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:24,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:24,544 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:54:24,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:54:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:24,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610656950] [2021-04-28 23:54:24,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:24,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:54:24,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143355769] [2021-04-28 23:54:24,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:54:24,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:24,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:54:24,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:54:24,568 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:54:24,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 421 flow. Second operand has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:24,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:54:24,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:24,640 INFO L129 PetriNetUnfolder]: 41/170 cut-off events. [2021-04-28 23:54:24,641 INFO L130 PetriNetUnfolder]: For 436/676 co-relation queries the response was YES. [2021-04-28 23:54:24,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 170 events. 41/170 cut-off events. For 436/676 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 866 event pairs, 0 based on Foata normal form. 13/129 useless extension candidates. Maximal degree in co-relation 661. Up to 46 conditions per place. [2021-04-28 23:54:24,645 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 15 selfloop transitions, 28 changer transitions 0/74 dead transitions. [2021-04-28 23:54:24,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 74 transitions, 670 flow [2021-04-28 23:54:24,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:54:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:54:24,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-04-28 23:54:24,648 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2021-04-28 23:54:24,648 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-04-28 23:54:24,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-04-28 23:54:24,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:24,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-04-28 23:54:24,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,654 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,654 INFO L185 Difference]: Start difference. First operand has 64 places, 60 transitions, 421 flow. Second operand 4 states and 432 transitions. [2021-04-28 23:54:24,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 74 transitions, 670 flow [2021-04-28 23:54:24,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 74 transitions, 659 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:54:24,662 INFO L241 Difference]: Finished difference. Result has 69 places, 71 transitions, 677 flow [2021-04-28 23:54:24,662 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=677, PETRI_PLACES=69, PETRI_TRANSITIONS=71} [2021-04-28 23:54:24,663 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -9 predicate places. [2021-04-28 23:54:24,663 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:24,663 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 71 transitions, 677 flow [2021-04-28 23:54:24,663 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 71 transitions, 677 flow [2021-04-28 23:54:24,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 71 transitions, 677 flow [2021-04-28 23:54:24,692 INFO L129 PetriNetUnfolder]: 41/185 cut-off events. [2021-04-28 23:54:24,692 INFO L130 PetriNetUnfolder]: For 678/723 co-relation queries the response was YES. [2021-04-28 23:54:24,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 716 conditions, 185 events. 41/185 cut-off events. For 678/723 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1048 event pairs, 0 based on Foata normal form. 2/124 useless extension candidates. Maximal degree in co-relation 691. Up to 46 conditions per place. [2021-04-28 23:54:24,700 INFO L146 LiptonReduction]: Number of co-enabled transitions 1790 [2021-04-28 23:54:24,714 INFO L158 LiptonReduction]: Checked pairs total: 50 [2021-04-28 23:54:24,714 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:24,715 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-04-28 23:54:24,717 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 71 transitions, 677 flow [2021-04-28 23:54:24,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,718 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:24,718 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:24,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:54:24,718 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:24,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:24,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1839860057, now seen corresponding path program 1 times [2021-04-28 23:54:24,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:24,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073598125] [2021-04-28 23:54:24,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:24,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:24,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:24,794 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-28 23:54:24,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:54:24,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:24,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073598125] [2021-04-28 23:54:24,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:24,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:54:24,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350688789] [2021-04-28 23:54:24,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:54:24,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:24,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:54:24,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:54:24,811 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:54:24,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 71 transitions, 677 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:24,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:24,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:54:24,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:26,709 INFO L129 PetriNetUnfolder]: 5965/10047 cut-off events. [2021-04-28 23:54:26,710 INFO L130 PetriNetUnfolder]: For 5835/6628 co-relation queries the response was YES. [2021-04-28 23:54:26,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21334 conditions, 10047 events. 5965/10047 cut-off events. For 5835/6628 co-relation queries the response was YES. Maximal size of possible extension queue 2460. Compared 92066 event pairs, 2538 based on Foata normal form. 131/2639 useless extension candidates. Maximal degree in co-relation 21307. Up to 6520 conditions per place. [2021-04-28 23:54:26,820 INFO L132 encePairwiseOnDemand]: 147/165 looper letters, 29 selfloop transitions, 27 changer transitions 0/106 dead transitions. [2021-04-28 23:54:26,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 106 transitions, 859 flow [2021-04-28 23:54:26,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:54:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:54:26,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2021-04-28 23:54:26,825 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6921212121212121 [2021-04-28 23:54:26,825 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2021-04-28 23:54:26,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2021-04-28 23:54:26,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:26,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2021-04-28 23:54:26,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:26,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:26,832 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:26,833 INFO L185 Difference]: Start difference. First operand has 69 places, 71 transitions, 677 flow. Second operand 5 states and 571 transitions. [2021-04-28 23:54:26,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 106 transitions, 859 flow [2021-04-28 23:54:26,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 106 transitions, 859 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:54:26,851 INFO L241 Difference]: Finished difference. Result has 76 places, 96 transitions, 880 flow [2021-04-28 23:54:26,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=880, PETRI_PLACES=76, PETRI_TRANSITIONS=96} [2021-04-28 23:54:26,852 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -2 predicate places. [2021-04-28 23:54:26,852 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:26,852 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 96 transitions, 880 flow [2021-04-28 23:54:26,853 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 96 transitions, 880 flow [2021-04-28 23:54:26,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 96 transitions, 880 flow [2021-04-28 23:54:28,222 INFO L129 PetriNetUnfolder]: 5126/8905 cut-off events. [2021-04-28 23:54:28,222 INFO L130 PetriNetUnfolder]: For 6262/9371 co-relation queries the response was YES. [2021-04-28 23:54:28,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25868 conditions, 8905 events. 5126/8905 cut-off events. For 6262/9371 co-relation queries the response was YES. Maximal size of possible extension queue 1956. Compared 82504 event pairs, 2315 based on Foata normal form. 16/2427 useless extension candidates. Maximal degree in co-relation 25838. Up to 8177 conditions per place. [2021-04-28 23:54:28,424 INFO L146 LiptonReduction]: Number of co-enabled transitions 2406 [2021-04-28 23:54:28,458 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:54:28,458 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:28,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1606 [2021-04-28 23:54:28,460 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 96 transitions, 880 flow [2021-04-28 23:54:28,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:28,461 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:28,461 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:28,461 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:54:28,462 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:28,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:28,462 INFO L82 PathProgramCache]: Analyzing trace with hash -331346512, now seen corresponding path program 1 times [2021-04-28 23:54:28,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:28,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216599896] [2021-04-28 23:54:28,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:28,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:28,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:28,521 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:54:28,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:54:28,529 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:54:28,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:54:28,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:28,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216599896] [2021-04-28 23:54:28,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:28,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:54:28,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124820863] [2021-04-28 23:54:28,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:54:28,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:28,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:54:28,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:54:28,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:54:28,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 96 transitions, 880 flow. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:28,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:28,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:54:28,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:30,901 INFO L129 PetriNetUnfolder]: 5266/10365 cut-off events. [2021-04-28 23:54:30,902 INFO L130 PetriNetUnfolder]: For 9987/31954 co-relation queries the response was YES. [2021-04-28 23:54:30,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39803 conditions, 10365 events. 5266/10365 cut-off events. For 9987/31954 co-relation queries the response was YES. Maximal size of possible extension queue 2721. Compared 111274 event pairs, 459 based on Foata normal form. 228/3338 useless extension candidates. Maximal degree in co-relation 39771. Up to 9341 conditions per place. [2021-04-28 23:54:31,016 INFO L132 encePairwiseOnDemand]: 147/165 looper letters, 21 selfloop transitions, 52 changer transitions 9/132 dead transitions. [2021-04-28 23:54:31,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 132 transitions, 1239 flow [2021-04-28 23:54:31,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:54:31,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:54:31,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 801 transitions. [2021-04-28 23:54:31,021 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6935064935064935 [2021-04-28 23:54:31,021 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 801 transitions. [2021-04-28 23:54:31,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 801 transitions. [2021-04-28 23:54:31,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:31,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 801 transitions. [2021-04-28 23:54:31,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.42857142857143) internal successors, (801), 7 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:31,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:31,031 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:31,031 INFO L185 Difference]: Start difference. First operand has 76 places, 96 transitions, 880 flow. Second operand 7 states and 801 transitions. [2021-04-28 23:54:31,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 132 transitions, 1239 flow [2021-04-28 23:54:31,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 132 transitions, 1239 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:54:31,097 INFO L241 Difference]: Finished difference. Result has 85 places, 121 transitions, 1219 flow [2021-04-28 23:54:31,097 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1219, PETRI_PLACES=85, PETRI_TRANSITIONS=121} [2021-04-28 23:54:31,098 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 7 predicate places. [2021-04-28 23:54:31,098 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:31,098 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 121 transitions, 1219 flow [2021-04-28 23:54:31,099 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 121 transitions, 1219 flow [2021-04-28 23:54:31,100 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 121 transitions, 1219 flow [2021-04-28 23:54:32,515 INFO L129 PetriNetUnfolder]: 3364/7674 cut-off events. [2021-04-28 23:54:32,516 INFO L130 PetriNetUnfolder]: For 15112/27549 co-relation queries the response was YES. [2021-04-28 23:54:32,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33388 conditions, 7674 events. 3364/7674 cut-off events. For 15112/27549 co-relation queries the response was YES. Maximal size of possible extension queue 2228. Compared 89681 event pairs, 461 based on Foata normal form. 7/2149 useless extension candidates. Maximal degree in co-relation 33353. Up to 6827 conditions per place. [2021-04-28 23:54:32,737 INFO L146 LiptonReduction]: Number of co-enabled transitions 2724 [2021-04-28 23:54:32,774 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:54:32,774 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:32,775 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1677 [2021-04-28 23:54:32,776 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 121 transitions, 1219 flow [2021-04-28 23:54:32,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:32,778 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:32,778 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:32,778 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:54:32,778 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:32,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:32,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1479849106, now seen corresponding path program 1 times [2021-04-28 23:54:32,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:32,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479370836] [2021-04-28 23:54:32,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:32,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:32,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:54:32,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:32,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:32,829 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:54:32,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:54:32,965 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-04-28 23:54:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:32,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479370836] [2021-04-28 23:54:32,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:32,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:54:32,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673119563] [2021-04-28 23:54:32,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:54:32,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:32,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:54:32,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:54:32,971 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:54:32,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 121 transitions, 1219 flow. Second operand has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:32,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:32,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:54:32,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:34,733 INFO L129 PetriNetUnfolder]: 5475/11522 cut-off events. [2021-04-28 23:54:34,734 INFO L130 PetriNetUnfolder]: For 30518/77262 co-relation queries the response was YES. [2021-04-28 23:54:34,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49455 conditions, 11522 events. 5475/11522 cut-off events. For 30518/77262 co-relation queries the response was YES. Maximal size of possible extension queue 3147. Compared 134236 event pairs, 891 based on Foata normal form. 125/3120 useless extension candidates. Maximal degree in co-relation 49418. Up to 10541 conditions per place. [2021-04-28 23:54:34,840 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 10 selfloop transitions, 34 changer transitions 0/125 dead transitions. [2021-04-28 23:54:34,840 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 125 transitions, 1360 flow [2021-04-28 23:54:34,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:54:34,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:54:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions. [2021-04-28 23:54:34,843 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6530303030303031 [2021-04-28 23:54:34,843 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 431 transitions. [2021-04-28 23:54:34,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 431 transitions. [2021-04-28 23:54:34,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:34,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 431 transitions. [2021-04-28 23:54:34,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.75) internal successors, (431), 4 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) [2021-04-28 23:54:34,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:34,848 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:34,849 INFO L185 Difference]: Start difference. First operand has 85 places, 121 transitions, 1219 flow. Second operand 4 states and 431 transitions. [2021-04-28 23:54:34,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 125 transitions, 1360 flow [2021-04-28 23:54:37,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 125 transitions, 1231 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-28 23:54:37,135 INFO L241 Difference]: Finished difference. Result has 88 places, 123 transitions, 1271 flow [2021-04-28 23:54:37,135 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1271, PETRI_PLACES=88, PETRI_TRANSITIONS=123} [2021-04-28 23:54:37,136 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 10 predicate places. [2021-04-28 23:54:37,136 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:37,136 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 123 transitions, 1271 flow [2021-04-28 23:54:37,137 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 123 transitions, 1271 flow [2021-04-28 23:54:37,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 123 transitions, 1271 flow [2021-04-28 23:54:38,389 INFO L129 PetriNetUnfolder]: 5601/11855 cut-off events. [2021-04-28 23:54:38,390 INFO L130 PetriNetUnfolder]: For 11745/12875 co-relation queries the response was YES. [2021-04-28 23:54:38,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40306 conditions, 11855 events. 5601/11855 cut-off events. For 11745/12875 co-relation queries the response was YES. Maximal size of possible extension queue 3251. Compared 139045 event pairs, 892 based on Foata normal form. 7/3219 useless extension candidates. Maximal degree in co-relation 40268. Up to 5357 conditions per place. [2021-04-28 23:54:38,746 INFO L146 LiptonReduction]: Number of co-enabled transitions 2922 [2021-04-28 23:54:38,777 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:54:38,777 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:38,778 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1642 [2021-04-28 23:54:38,779 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 123 transitions, 1271 flow [2021-04-28 23:54:38,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:38,780 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:38,780 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:38,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:54:38,781 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:38,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:38,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1080553705, now seen corresponding path program 1 times [2021-04-28 23:54:38,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:38,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387242508] [2021-04-28 23:54:38,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:38,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:38,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:38,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:38,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:38,837 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:54:38,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:54:38,846 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:54:38,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:54:38,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:38,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387242508] [2021-04-28 23:54:38,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:38,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:54:38,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805938387] [2021-04-28 23:54:38,856 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:54:38,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:38,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:54:38,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:54:38,859 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:54:38,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 123 transitions, 1271 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:38,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:38,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:54:38,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:40,767 INFO L129 PetriNetUnfolder]: 4806/11351 cut-off events. [2021-04-28 23:54:40,768 INFO L130 PetriNetUnfolder]: For 14935/64424 co-relation queries the response was YES. [2021-04-28 23:54:40,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48383 conditions, 11351 events. 4806/11351 cut-off events. For 14935/64424 co-relation queries the response was YES. Maximal size of possible extension queue 3147. Compared 143713 event pairs, 0 based on Foata normal form. 270/3468 useless extension candidates. Maximal degree in co-relation 48343. Up to 5454 conditions per place. [2021-04-28 23:54:40,871 INFO L132 encePairwiseOnDemand]: 147/165 looper letters, 5 selfloop transitions, 61 changer transitions 62/151 dead transitions. [2021-04-28 23:54:40,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 151 transitions, 1644 flow [2021-04-28 23:54:40,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 23:54:40,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 23:54:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1013 transitions. [2021-04-28 23:54:40,876 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6821548821548822 [2021-04-28 23:54:40,876 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1013 transitions. [2021-04-28 23:54:40,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1013 transitions. [2021-04-28 23:54:40,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:40,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1013 transitions. [2021-04-28 23:54:40,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.55555555555556) internal successors, (1013), 9 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:40,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:40,886 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:40,886 INFO L185 Difference]: Start difference. First operand has 88 places, 123 transitions, 1271 flow. Second operand 9 states and 1013 transitions. [2021-04-28 23:54:40,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 151 transitions, 1644 flow [2021-04-28 23:54:43,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 151 transitions, 1642 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 23:54:43,136 INFO L241 Difference]: Finished difference. Result has 99 places, 87 transitions, 890 flow [2021-04-28 23:54:43,137 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1269, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=890, PETRI_PLACES=99, PETRI_TRANSITIONS=87} [2021-04-28 23:54:43,137 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 21 predicate places. [2021-04-28 23:54:43,138 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:43,138 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 87 transitions, 890 flow [2021-04-28 23:54:43,139 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 87 transitions, 890 flow [2021-04-28 23:54:43,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 87 transitions, 890 flow [2021-04-28 23:54:43,302 INFO L129 PetriNetUnfolder]: 346/1415 cut-off events. [2021-04-28 23:54:43,302 INFO L130 PetriNetUnfolder]: For 7021/10195 co-relation queries the response was YES. [2021-04-28 23:54:43,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6556 conditions, 1415 events. 346/1415 cut-off events. For 7021/10195 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 16417 event pairs, 0 based on Foata normal form. 2/403 useless extension candidates. Maximal degree in co-relation 6513. Up to 972 conditions per place. [2021-04-28 23:54:43,335 INFO L146 LiptonReduction]: Number of co-enabled transitions 932 [2021-04-28 23:54:43,347 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:54:43,347 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:43,347 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 209 [2021-04-28 23:54:43,349 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 87 transitions, 890 flow [2021-04-28 23:54:43,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:43,349 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:43,349 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:43,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:54:43,350 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:43,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:43,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1220621849, now seen corresponding path program 1 times [2021-04-28 23:54:43,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:43,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933981899] [2021-04-28 23:54:43,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:43,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:43,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:54:43,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:43,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:43,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:43,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:43,450 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:54:43,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:54:43,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:43,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933981899] [2021-04-28 23:54:43,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:43,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:54:43,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203203559] [2021-04-28 23:54:43,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:54:43,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:43,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:54:43,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:54:43,475 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:54:43,478 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 87 transitions, 890 flow. Second operand has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:43,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:43,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:54:43,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:43,742 INFO L129 PetriNetUnfolder]: 420/1883 cut-off events. [2021-04-28 23:54:43,742 INFO L130 PetriNetUnfolder]: For 9275/11575 co-relation queries the response was YES. [2021-04-28 23:54:43,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8814 conditions, 1883 events. 420/1883 cut-off events. For 9275/11575 co-relation queries the response was YES. Maximal size of possible extension queue 684. Compared 22698 event pairs, 0 based on Foata normal form. 32/605 useless extension candidates. Maximal degree in co-relation 8769. Up to 1224 conditions per place. [2021-04-28 23:54:43,760 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 5 selfloop transitions, 9 changer transitions 21/90 dead transitions. [2021-04-28 23:54:43,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 90 transitions, 995 flow [2021-04-28 23:54:43,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:54:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:54:43,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 636 transitions. [2021-04-28 23:54:43,764 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6424242424242425 [2021-04-28 23:54:43,764 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 636 transitions. [2021-04-28 23:54:43,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 636 transitions. [2021-04-28 23:54:43,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:43,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 636 transitions. [2021-04-28 23:54:43,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:43,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:43,772 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:43,772 INFO L185 Difference]: Start difference. First operand has 93 places, 87 transitions, 890 flow. Second operand 6 states and 636 transitions. [2021-04-28 23:54:43,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 90 transitions, 995 flow [2021-04-28 23:54:44,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 90 transitions, 649 flow, removed 51 selfloop flow, removed 22 redundant places. [2021-04-28 23:54:44,141 INFO L241 Difference]: Finished difference. Result has 77 places, 69 transitions, 463 flow [2021-04-28 23:54:44,141 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=463, PETRI_PLACES=77, PETRI_TRANSITIONS=69} [2021-04-28 23:54:44,142 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -1 predicate places. [2021-04-28 23:54:44,142 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:44,142 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 463 flow [2021-04-28 23:54:44,143 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 463 flow [2021-04-28 23:54:44,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 463 flow [2021-04-28 23:54:44,229 INFO L129 PetriNetUnfolder]: 105/399 cut-off events. [2021-04-28 23:54:44,229 INFO L130 PetriNetUnfolder]: For 1859/2084 co-relation queries the response was YES. [2021-04-28 23:54:44,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1416 conditions, 399 events. 105/399 cut-off events. For 1859/2084 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 2969 event pairs, 0 based on Foata normal form. 2/163 useless extension candidates. Maximal degree in co-relation 1387. Up to 223 conditions per place. [2021-04-28 23:54:44,236 INFO L146 LiptonReduction]: Number of co-enabled transitions 792 [2021-04-28 23:54:44,244 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:54:44,244 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:44,244 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 102 [2021-04-28 23:54:44,246 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 463 flow [2021-04-28 23:54:44,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:44,247 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:54:44,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:54:44,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 23:54:44,247 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:54:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:54:44,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1080905494, now seen corresponding path program 1 times [2021-04-28 23:54:44,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:54:44,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295080135] [2021-04-28 23:54:44,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:54:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:54:44,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:44,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:44,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:54:44,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:54:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:54:44,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295080135] [2021-04-28 23:54:44,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:54:44,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:54:44,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809467055] [2021-04-28 23:54:44,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:54:44,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:54:44,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:54:44,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:54:44,317 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 165 [2021-04-28 23:54:44,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:44,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:54:44,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 165 [2021-04-28 23:54:44,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:54:44,376 INFO L129 PetriNetUnfolder]: 96/330 cut-off events. [2021-04-28 23:54:44,376 INFO L130 PetriNetUnfolder]: For 2142/2355 co-relation queries the response was YES. [2021-04-28 23:54:44,378 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 330 events. 96/330 cut-off events. For 2142/2355 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 2214 event pairs, 0 based on Foata normal form. 30/153 useless extension candidates. Maximal degree in co-relation 1012. Up to 184 conditions per place. [2021-04-28 23:54:44,380 INFO L132 encePairwiseOnDemand]: 162/165 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2021-04-28 23:54:44,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 68 transitions, 461 flow [2021-04-28 23:54:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:54:44,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:54:44,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 463 transitions. [2021-04-28 23:54:44,382 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7015151515151515 [2021-04-28 23:54:44,382 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 463 transitions. [2021-04-28 23:54:44,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 463 transitions. [2021-04-28 23:54:44,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:54:44,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 463 transitions. [2021-04-28 23:54:44,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.75) internal successors, (463), 4 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:44,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:44,388 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:44,388 INFO L185 Difference]: Start difference. First operand has 73 places, 69 transitions, 463 flow. Second operand 4 states and 463 transitions. [2021-04-28 23:54:44,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 68 transitions, 461 flow [2021-04-28 23:54:44,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 68 transitions, 396 flow, removed 1 selfloop flow, removed 10 redundant places. [2021-04-28 23:54:44,393 INFO L241 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2021-04-28 23:54:44,393 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2021-04-28 23:54:44,393 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -13 predicate places. [2021-04-28 23:54:44,393 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:44,394 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 0 transitions, 0 flow [2021-04-28 23:54:44,394 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 0 transitions, 0 flow [2021-04-28 23:54:44,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:54:44,394 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:54:44,395 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:54:44,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 23:54:44,395 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:54:44,395 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:54:44,395 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:54:44,395 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:54:44,397 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:54:44,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:54:44,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 23:54:44,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:54:44 BasicIcfg [2021-04-28 23:54:44,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:54:44,405 INFO L168 Benchmark]: Toolchain (without parser) took 35868.28 ms. Allocated memory was 302.0 MB in the beginning and 7.5 GB in the end (delta: 7.2 GB). Free memory was 276.1 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 537.7 MB. Max. memory is 16.0 GB. [2021-04-28 23:54:44,405 INFO L168 Benchmark]: CDTParser took 1.15 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:54:44,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 862.01 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 279.3 MB in the end (delta: -6.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.0 GB. [2021-04-28 23:54:44,406 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.75 ms. Allocated memory is still 302.0 MB. Free memory was 279.3 MB in the beginning and 277.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:54:44,406 INFO L168 Benchmark]: Boogie Preprocessor took 72.86 ms. Allocated memory is still 302.0 MB. Free memory was 277.2 MB in the beginning and 276.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:54:44,407 INFO L168 Benchmark]: RCFGBuilder took 687.97 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 253.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:54:44,407 INFO L168 Benchmark]: TraceAbstraction took 34085.95 ms. Allocated memory was 302.0 MB in the beginning and 7.5 GB in the end (delta: 7.2 GB). Free memory was 253.1 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 513.2 MB. Max. memory is 16.0 GB. [2021-04-28 23:54:44,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.15 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 862.01 ms. Allocated memory is still 302.0 MB. Free memory was 272.8 MB in the beginning and 279.3 MB in the end (delta: -6.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 76.75 ms. Allocated memory is still 302.0 MB. Free memory was 279.3 MB in the beginning and 277.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 72.86 ms. Allocated memory is still 302.0 MB. Free memory was 277.2 MB in the beginning and 276.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 687.97 ms. Allocated memory is still 302.0 MB. Free memory was 276.2 MB in the beginning and 253.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 34085.95 ms. Allocated memory was 302.0 MB in the beginning and 7.5 GB in the end (delta: 7.2 GB). Free memory was 253.1 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 513.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11939.3ms, 68 PlacesBefore, 78 PlacesAfterwards, 59 TransitionsBefore, 68 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 6612 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1906, positive: 1706, positive conditional: 1706, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 959, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 959, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 959, positive: 872, positive conditional: 0, positive unconditional: 872, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 87, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 609, positive: 154, positive conditional: 0, positive unconditional: 154, negative: 455, negative conditional: 0, negative unconditional: 455, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1906, positive: 816, positive conditional: 816, positive unconditional: 0, negative: 131, negative conditional: 131, negative unconditional: 0, unknown: 959, unknown conditional: 959, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.2ms, 79 PlacesBefore, 50 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.8ms, 54 PlacesBefore, 54 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.4ms, 59 PlacesBefore, 59 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 1342 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 34 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.4ms, 64 PlacesBefore, 64 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 1498 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.9ms, 69 PlacesBefore, 69 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 1790 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 50 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1605.3ms, 76 PlacesBefore, 76 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 2406 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1675.7ms, 85 PlacesBefore, 85 PlacesAfterwards, 121 TransitionsBefore, 121 TransitionsAfterwards, 2724 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1640.7ms, 88 PlacesBefore, 88 PlacesAfterwards, 123 TransitionsBefore, 123 TransitionsAfterwards, 2922 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 208.7ms, 99 PlacesBefore, 93 PlacesAfterwards, 87 TransitionsBefore, 87 TransitionsAfterwards, 932 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 101.6ms, 77 PlacesBefore, 73 PlacesAfterwards, 69 TransitionsBefore, 69 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 65 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 957, Positive cache size: 888, Positive conditional cache size: 888, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, 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, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 15.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 33927.4ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 14678.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12058.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 105 SDtfs, 84 SDslu, 43 SDs, 0 SdLazy, 364 SolverSat, 161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 605.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 405.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1271occurred in iteration=8, InterpolantAutomatonStates: 54, 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: 32.1ms SsaConstructionTime, 310.3ms SatisfiabilityAnalysisTime, 1021.9ms InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 650 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...