/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-ext/13_unverif.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 03:51:16,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 03:51:16,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 03:51:16,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 03:51:16,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 03:51:16,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 03:51:16,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 03:51:16,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 03:51:16,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 03:51:16,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 03:51:16,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 03:51:16,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 03:51:16,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 03:51:16,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 03:51:16,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 03:51:16,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 03:51:16,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 03:51:16,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 03:51:16,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 03:51:16,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 03:51:16,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 03:51:16,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 03:51:16,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 03:51:16,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 03:51:16,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 03:51:16,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 03:51:16,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 03:51:16,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 03:51:16,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 03:51:16,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 03:51:16,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 03:51:16,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 03:51:16,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 03:51:16,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 03:51:16,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 03:51:16,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 03:51:16,352 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-SemanticLbe-SemanticLooper.epf [2020-10-16 03:51:16,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 03:51:16,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 03:51:16,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 03:51:16,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 03:51:16,381 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 03:51:16,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 03:51:16,381 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 03:51:16,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 03:51:16,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 03:51:16,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 03:51:16,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 03:51:16,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 03:51:16,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 03:51:16,382 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 03:51:16,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 03:51:16,383 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 03:51:16,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 03:51:16,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 03:51:16,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 03:51:16,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 03:51:16,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 03:51:16,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 03:51:16,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 03:51:16,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 03:51:16,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 03:51:16,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 03:51:16,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 03:51:16,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 03:51:16,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 03:51:16,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 03:51:16,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 03:51:16,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 03:51:16,780 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 03:51:16,780 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 03:51:16,781 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/13_unverif.i [2020-10-16 03:51:16,854 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/391536638/424fa89701744d6b8b52da4b1d5dbf7d/FLAG6b9f1fa82 [2020-10-16 03:51:17,376 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 03:51:17,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/13_unverif.i [2020-10-16 03:51:17,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/391536638/424fa89701744d6b8b52da4b1d5dbf7d/FLAG6b9f1fa82 [2020-10-16 03:51:17,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/391536638/424fa89701744d6b8b52da4b1d5dbf7d [2020-10-16 03:51:17,719 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 03:51:17,721 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 03:51:17,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 03:51:17,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 03:51:17,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 03:51:17,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:51:17" (1/1) ... [2020-10-16 03:51:17,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ee6a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:17, skipping insertion in model container [2020-10-16 03:51:17,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:51:17" (1/1) ... [2020-10-16 03:51:17,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 03:51:17,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 03:51:18,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 03:51:18,251 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 03:51:18,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 03:51:18,394 INFO L208 MainTranslator]: Completed translation [2020-10-16 03:51:18,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18 WrapperNode [2020-10-16 03:51:18,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 03:51:18,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 03:51:18,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 03:51:18,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 03:51:18,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (1/1) ... [2020-10-16 03:51:18,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (1/1) ... [2020-10-16 03:51:18,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 03:51:18,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 03:51:18,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 03:51:18,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 03:51:18,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (1/1) ... [2020-10-16 03:51:18,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (1/1) ... [2020-10-16 03:51:18,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (1/1) ... [2020-10-16 03:51:18,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (1/1) ... [2020-10-16 03:51:18,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (1/1) ... [2020-10-16 03:51:18,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (1/1) ... [2020-10-16 03:51:18,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (1/1) ... [2020-10-16 03:51:18,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 03:51:18,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 03:51:18,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 03:51:18,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 03:51:18,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (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 [2020-10-16 03:51:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 03:51:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 03:51:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 03:51:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 03:51:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 03:51:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 03:51:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 03:51:18,596 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 03:51:18,901 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 03:51:18,902 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-16 03:51:18,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:51:18 BoogieIcfgContainer [2020-10-16 03:51:18,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 03:51:18,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 03:51:18,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 03:51:18,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 03:51:18,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:51:17" (1/3) ... [2020-10-16 03:51:18,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b59b51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:51:18, skipping insertion in model container [2020-10-16 03:51:18,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:51:18" (2/3) ... [2020-10-16 03:51:18,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b59b51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:51:18, skipping insertion in model container [2020-10-16 03:51:18,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:51:18" (3/3) ... [2020-10-16 03:51:18,914 INFO L111 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2020-10-16 03:51:18,928 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 03:51:18,935 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 03:51:18,936 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 03:51:18,961 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,961 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,961 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,962 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,962 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,963 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,963 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,964 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,964 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,964 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,965 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,965 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,969 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,969 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,970 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,970 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,970 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,970 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,971 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:18,990 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 03:51:19,012 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:51:19,012 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:51:19,013 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:51:19,013 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:51:19,013 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:51:19,013 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:51:19,013 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:51:19,014 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:51:19,025 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 32 places, 32 transitions, 69 flow [2020-10-16 03:51:19,059 INFO L129 PetriNetUnfolder]: 4/40 cut-off events. [2020-10-16 03:51:19,060 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 03:51:19,064 INFO L80 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2020-10-16 03:51:19,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 32 transitions, 69 flow [2020-10-16 03:51:19,071 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 32 transitions, 69 flow [2020-10-16 03:51:19,074 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:51:19,079 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 32 transitions, 69 flow [2020-10-16 03:51:19,088 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 32 transitions, 69 flow [2020-10-16 03:51:19,089 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 32 places, 32 transitions, 69 flow [2020-10-16 03:51:19,109 INFO L129 PetriNetUnfolder]: 4/40 cut-off events. [2020-10-16 03:51:19,109 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 03:51:19,110 INFO L80 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 40 events. 4/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 22. Up to 4 conditions per place. [2020-10-16 03:51:19,112 INFO L117 LiptonReduction]: Number of co-enabled transitions 260 [2020-10-16 03:51:19,907 INFO L132 LiptonReduction]: Checked pairs total: 259 [2020-10-16 03:51:19,908 INFO L134 LiptonReduction]: Total number of compositions: 30 [2020-10-16 03:51:19,911 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 840 [2020-10-16 03:51:19,918 INFO L129 PetriNetUnfolder]: 1/10 cut-off events. [2020-10-16 03:51:19,918 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 03:51:19,919 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:19,920 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 03:51:19,920 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 03:51:19,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:19,931 INFO L82 PathProgramCache]: Analyzing trace with hash 168321027, now seen corresponding path program 1 times [2020-10-16 03:51:19,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:19,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875806309] [2020-10-16 03:51:19,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:20,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:20,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875806309] [2020-10-16 03:51:20,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:20,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 03:51:20,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090295192] [2020-10-16 03:51:20,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:51:20,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:20,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:51:20,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:51:20,199 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 62 [2020-10-16 03:51:20,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 10 transitions, 25 flow. Second operand 4 states. [2020-10-16 03:51:20,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:20,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 62 [2020-10-16 03:51:20,203 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:20,236 INFO L129 PetriNetUnfolder]: 1/11 cut-off events. [2020-10-16 03:51:20,236 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 03:51:20,237 INFO L80 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 11 events. 1/11 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 5/14 useless extension candidates. Maximal degree in co-relation 12. Up to 4 conditions per place. [2020-10-16 03:51:20,238 INFO L132 encePairwiseOnDemand]: 57/62 looper letters, 4 selfloop transitions, 3 changer transitions 0/10 dead transitions. [2020-10-16 03:51:20,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 10 transitions, 39 flow [2020-10-16 03:51:20,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:51:20,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:51:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2020-10-16 03:51:20,255 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5604838709677419 [2020-10-16 03:51:20,256 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 139 transitions. [2020-10-16 03:51:20,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 139 transitions. [2020-10-16 03:51:20,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:20,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 139 transitions. [2020-10-16 03:51:20,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:51:20,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:51:20,270 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:51:20,272 INFO L185 Difference]: Start difference. First operand has 12 places, 10 transitions, 25 flow. Second operand 4 states and 139 transitions. [2020-10-16 03:51:20,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 10 transitions, 39 flow [2020-10-16 03:51:20,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 10 transitions, 39 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:20,279 INFO L241 Difference]: Finished difference. Result has 15 places, 10 transitions, 37 flow [2020-10-16 03:51:20,282 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=37, PETRI_PLACES=15, PETRI_TRANSITIONS=10} [2020-10-16 03:51:20,283 INFO L342 CegarLoopForPetriNet]: 12 programPoint places, 3 predicate places. [2020-10-16 03:51:20,283 INFO L481 AbstractCegarLoop]: Abstraction has has 15 places, 10 transitions, 37 flow [2020-10-16 03:51:20,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:51:20,284 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:20,284 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2020-10-16 03:51:20,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 03:51:20,284 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 03:51:20,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:20,285 INFO L82 PathProgramCache]: Analyzing trace with hash 922916027, now seen corresponding path program 1 times [2020-10-16 03:51:20,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:20,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023002985] [2020-10-16 03:51:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:51:20,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:51:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:51:20,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:51:20,350 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 03:51:20,350 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 03:51:20,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 03:51:20,354 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 03:51:20,355 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-16 03:51:20,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,375 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,378 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,378 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,378 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,380 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,381 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,383 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,383 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,383 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,384 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,384 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:20,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 03:51:20,392 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:51:20,392 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:51:20,392 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:51:20,392 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:51:20,392 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:51:20,392 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:51:20,392 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:51:20,392 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:51:20,396 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions, 104 flow [2020-10-16 03:51:20,415 INFO L129 PetriNetUnfolder]: 7/63 cut-off events. [2020-10-16 03:51:20,415 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 03:51:20,416 INFO L80 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 7/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 138 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2020-10-16 03:51:20,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 46 transitions, 104 flow [2020-10-16 03:51:20,418 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 46 transitions, 104 flow [2020-10-16 03:51:20,418 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:51:20,418 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 46 transitions, 104 flow [2020-10-16 03:51:20,418 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 46 transitions, 104 flow [2020-10-16 03:51:20,418 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 46 places, 46 transitions, 104 flow [2020-10-16 03:51:20,430 INFO L129 PetriNetUnfolder]: 7/63 cut-off events. [2020-10-16 03:51:20,430 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 03:51:20,431 INFO L80 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 63 events. 7/63 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 6 conditions per place. [2020-10-16 03:51:20,433 INFO L117 LiptonReduction]: Number of co-enabled transitions 884 [2020-10-16 03:51:21,087 INFO L132 LiptonReduction]: Checked pairs total: 1821 [2020-10-16 03:51:21,088 INFO L134 LiptonReduction]: Total number of compositions: 32 [2020-10-16 03:51:21,088 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 670 [2020-10-16 03:51:21,092 INFO L129 PetriNetUnfolder]: 2/15 cut-off events. [2020-10-16 03:51:21,092 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 03:51:21,092 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:21,092 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:21,093 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:21,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:21,093 INFO L82 PathProgramCache]: Analyzing trace with hash 596085795, now seen corresponding path program 1 times [2020-10-16 03:51:21,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:21,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104584575] [2020-10-16 03:51:21,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:21,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:21,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104584575] [2020-10-16 03:51:21,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:21,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:21,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692356727] [2020-10-16 03:51:21,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:21,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:21,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:21,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:21,212 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 78 [2020-10-16 03:51:21,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 21 transitions, 54 flow. Second operand 5 states. [2020-10-16 03:51:21,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:21,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 78 [2020-10-16 03:51:21,213 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:21,302 INFO L129 PetriNetUnfolder]: 22/62 cut-off events. [2020-10-16 03:51:21,302 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-16 03:51:21,305 INFO L80 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 62 events. 22/62 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 156 event pairs, 4 based on Foata normal form. 25/73 useless extension candidates. Maximal degree in co-relation 97. Up to 38 conditions per place. [2020-10-16 03:51:21,309 INFO L132 encePairwiseOnDemand]: 69/78 looper letters, 10 selfloop transitions, 8 changer transitions 0/27 dead transitions. [2020-10-16 03:51:21,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 27 transitions, 102 flow [2020-10-16 03:51:21,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:21,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:21,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 252 transitions. [2020-10-16 03:51:21,317 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2020-10-16 03:51:21,317 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 252 transitions. [2020-10-16 03:51:21,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 252 transitions. [2020-10-16 03:51:21,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:21,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 252 transitions. [2020-10-16 03:51:21,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:21,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:21,327 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:21,327 INFO L185 Difference]: Start difference. First operand has 22 places, 21 transitions, 54 flow. Second operand 5 states and 252 transitions. [2020-10-16 03:51:21,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 27 transitions, 102 flow [2020-10-16 03:51:21,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 100 flow, removed 1 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:21,329 INFO L241 Difference]: Finished difference. Result has 27 places, 25 transitions, 94 flow [2020-10-16 03:51:21,330 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=94, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2020-10-16 03:51:21,330 INFO L342 CegarLoopForPetriNet]: 22 programPoint places, 5 predicate places. [2020-10-16 03:51:21,330 INFO L481 AbstractCegarLoop]: Abstraction has has 27 places, 25 transitions, 94 flow [2020-10-16 03:51:21,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:21,330 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:21,331 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-16 03:51:21,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 03:51:21,331 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:21,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:21,332 INFO L82 PathProgramCache]: Analyzing trace with hash -690616091, now seen corresponding path program 1 times [2020-10-16 03:51:21,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:21,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391566391] [2020-10-16 03:51:21,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:51:21,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:51:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:51:21,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:51:21,375 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 03:51:21,375 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 03:51:21,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 03:51:21,376 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 03:51:21,378 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-16 03:51:21,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,385 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,386 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,386 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,387 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,387 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,388 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,389 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,389 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,390 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,390 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,391 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,392 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,392 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,393 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,393 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,394 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,394 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,395 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,395 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,396 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,396 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,398 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,399 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,399 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,403 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,403 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,404 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:21,406 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 03:51:21,406 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:51:21,406 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:51:21,406 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:51:21,407 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:51:21,407 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:51:21,407 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:51:21,407 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:51:21,407 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:51:21,409 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 141 flow [2020-10-16 03:51:21,423 INFO L129 PetriNetUnfolder]: 10/86 cut-off events. [2020-10-16 03:51:21,424 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 03:51:21,425 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 86 events. 10/86 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2020-10-16 03:51:21,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 60 transitions, 141 flow [2020-10-16 03:51:21,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 60 transitions, 141 flow [2020-10-16 03:51:21,427 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:51:21,427 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions, 141 flow [2020-10-16 03:51:21,427 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 60 transitions, 141 flow [2020-10-16 03:51:21,427 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 141 flow [2020-10-16 03:51:21,461 INFO L129 PetriNetUnfolder]: 10/86 cut-off events. [2020-10-16 03:51:21,461 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 03:51:21,462 INFO L80 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 86 events. 10/86 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 219 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 67. Up to 8 conditions per place. [2020-10-16 03:51:21,465 INFO L117 LiptonReduction]: Number of co-enabled transitions 1872 [2020-10-16 03:51:22,392 INFO L132 LiptonReduction]: Checked pairs total: 4048 [2020-10-16 03:51:22,392 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 03:51:22,392 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 965 [2020-10-16 03:51:22,395 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2020-10-16 03:51:22,395 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 03:51:22,396 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:22,396 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:22,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:22,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:22,397 INFO L82 PathProgramCache]: Analyzing trace with hash -34022084, now seen corresponding path program 1 times [2020-10-16 03:51:22,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:22,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386892128] [2020-10-16 03:51:22,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:22,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:22,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386892128] [2020-10-16 03:51:22,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:22,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:22,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335076338] [2020-10-16 03:51:22,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:22,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:22,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:22,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:22,490 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2020-10-16 03:51:22,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 75 flow. Second operand 5 states. [2020-10-16 03:51:22,491 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:22,491 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2020-10-16 03:51:22,491 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:22,625 INFO L129 PetriNetUnfolder]: 169/277 cut-off events. [2020-10-16 03:51:22,625 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2020-10-16 03:51:22,627 INFO L80 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 277 events. 169/277 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 956 event pairs, 53 based on Foata normal form. 93/302 useless extension candidates. Maximal degree in co-relation 520. Up to 246 conditions per place. [2020-10-16 03:51:22,631 INFO L132 encePairwiseOnDemand]: 94/103 looper letters, 15 selfloop transitions, 11 changer transitions 0/39 dead transitions. [2020-10-16 03:51:22,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 151 flow [2020-10-16 03:51:22,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:22,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:22,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 323 transitions. [2020-10-16 03:51:22,638 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6271844660194175 [2020-10-16 03:51:22,642 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 323 transitions. [2020-10-16 03:51:22,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 323 transitions. [2020-10-16 03:51:22,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:22,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 323 transitions. [2020-10-16 03:51:22,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:22,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:22,652 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:22,652 INFO L185 Difference]: Start difference. First operand has 30 places, 27 transitions, 75 flow. Second operand 5 states and 323 transitions. [2020-10-16 03:51:22,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 151 flow [2020-10-16 03:51:22,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 145 flow, removed 3 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:22,654 INFO L241 Difference]: Finished difference. Result has 35 places, 35 transitions, 130 flow [2020-10-16 03:51:22,655 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=130, PETRI_PLACES=35, PETRI_TRANSITIONS=35} [2020-10-16 03:51:22,655 INFO L342 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2020-10-16 03:51:22,655 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 35 transitions, 130 flow [2020-10-16 03:51:22,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:22,655 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:22,655 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:22,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 03:51:22,659 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:22,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:22,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1664536604, now seen corresponding path program 1 times [2020-10-16 03:51:22,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:22,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392207569] [2020-10-16 03:51:22,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:22,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:22,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392207569] [2020-10-16 03:51:22,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:22,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:22,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914550616] [2020-10-16 03:51:22,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:51:22,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:22,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:51:22,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:51:22,806 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2020-10-16 03:51:22,806 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 130 flow. Second operand 4 states. [2020-10-16 03:51:22,806 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:22,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2020-10-16 03:51:22,806 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:22,967 INFO L129 PetriNetUnfolder]: 251/403 cut-off events. [2020-10-16 03:51:22,968 INFO L130 PetriNetUnfolder]: For 153/239 co-relation queries the response was YES. [2020-10-16 03:51:22,969 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 403 events. 251/403 cut-off events. For 153/239 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1469 event pairs, 45 based on Foata normal form. 10/323 useless extension candidates. Maximal degree in co-relation 1043. Up to 266 conditions per place. [2020-10-16 03:51:22,973 INFO L132 encePairwiseOnDemand]: 98/103 looper letters, 28 selfloop transitions, 9 changer transitions 0/50 dead transitions. [2020-10-16 03:51:22,973 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 248 flow [2020-10-16 03:51:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:51:22,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:51:22,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 260 transitions. [2020-10-16 03:51:22,975 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6310679611650486 [2020-10-16 03:51:22,976 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 260 transitions. [2020-10-16 03:51:22,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 260 transitions. [2020-10-16 03:51:22,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:22,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 260 transitions. [2020-10-16 03:51:22,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:51:22,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:51:22,978 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:51:22,979 INFO L185 Difference]: Start difference. First operand has 35 places, 35 transitions, 130 flow. Second operand 4 states and 260 transitions. [2020-10-16 03:51:22,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 248 flow [2020-10-16 03:51:22,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 50 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:22,982 INFO L241 Difference]: Finished difference. Result has 39 places, 42 transitions, 191 flow [2020-10-16 03:51:22,982 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=191, PETRI_PLACES=39, PETRI_TRANSITIONS=42} [2020-10-16 03:51:22,982 INFO L342 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2020-10-16 03:51:22,982 INFO L481 AbstractCegarLoop]: Abstraction has has 39 places, 42 transitions, 191 flow [2020-10-16 03:51:22,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:51:22,982 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:22,983 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:22,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 03:51:22,983 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:22,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:22,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1222264885, now seen corresponding path program 1 times [2020-10-16 03:51:22,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:22,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196902502] [2020-10-16 03:51:22,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:23,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:51:23,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196902502] [2020-10-16 03:51:23,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:23,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:23,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159938679] [2020-10-16 03:51:23,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:23,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:23,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:23,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:23,038 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2020-10-16 03:51:23,038 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 42 transitions, 191 flow. Second operand 5 states. [2020-10-16 03:51:23,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:23,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2020-10-16 03:51:23,039 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:23,151 INFO L129 PetriNetUnfolder]: 320/523 cut-off events. [2020-10-16 03:51:23,151 INFO L130 PetriNetUnfolder]: For 605/684 co-relation queries the response was YES. [2020-10-16 03:51:23,153 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1720 conditions, 523 events. 320/523 cut-off events. For 605/684 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2088 event pairs, 92 based on Foata normal form. 11/443 useless extension candidates. Maximal degree in co-relation 1664. Up to 470 conditions per place. [2020-10-16 03:51:23,159 INFO L132 encePairwiseOnDemand]: 96/103 looper letters, 26 selfloop transitions, 20 changer transitions 0/60 dead transitions. [2020-10-16 03:51:23,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 60 transitions, 374 flow [2020-10-16 03:51:23,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 317 transitions. [2020-10-16 03:51:23,162 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6155339805825243 [2020-10-16 03:51:23,162 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 317 transitions. [2020-10-16 03:51:23,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 317 transitions. [2020-10-16 03:51:23,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:23,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 317 transitions. [2020-10-16 03:51:23,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:23,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:23,165 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:23,165 INFO L185 Difference]: Start difference. First operand has 39 places, 42 transitions, 191 flow. Second operand 5 states and 317 transitions. [2020-10-16 03:51:23,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 60 transitions, 374 flow [2020-10-16 03:51:23,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 60 transitions, 354 flow, removed 10 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:23,171 INFO L241 Difference]: Finished difference. Result has 45 places, 56 transitions, 328 flow [2020-10-16 03:51:23,171 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=328, PETRI_PLACES=45, PETRI_TRANSITIONS=56} [2020-10-16 03:51:23,171 INFO L342 CegarLoopForPetriNet]: 30 programPoint places, 15 predicate places. [2020-10-16 03:51:23,172 INFO L481 AbstractCegarLoop]: Abstraction has has 45 places, 56 transitions, 328 flow [2020-10-16 03:51:23,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:23,172 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:23,172 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-16 03:51:23,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 03:51:23,172 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:23,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:23,173 INFO L82 PathProgramCache]: Analyzing trace with hash -853373875, now seen corresponding path program 1 times [2020-10-16 03:51:23,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:23,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88731045] [2020-10-16 03:51:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:51:23,182 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:51:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:51:23,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:51:23,194 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 03:51:23,194 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 03:51:23,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 03:51:23,195 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 03:51:23,195 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-16 03:51:23,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,210 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,210 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,211 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,211 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,212 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,218 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,218 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,219 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,219 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,220 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:23,223 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 03:51:23,223 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:51:23,223 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:51:23,223 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:51:23,223 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:51:23,223 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:51:23,223 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:51:23,224 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:51:23,224 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:51:23,225 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions, 180 flow [2020-10-16 03:51:23,234 INFO L129 PetriNetUnfolder]: 13/109 cut-off events. [2020-10-16 03:51:23,235 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 03:51:23,235 INFO L80 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 109 events. 13/109 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 308 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 10 conditions per place. [2020-10-16 03:51:23,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 74 transitions, 180 flow [2020-10-16 03:51:23,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 74 transitions, 180 flow [2020-10-16 03:51:23,237 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:51:23,237 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 74 transitions, 180 flow [2020-10-16 03:51:23,237 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 74 transitions, 180 flow [2020-10-16 03:51:23,237 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 74 places, 74 transitions, 180 flow [2020-10-16 03:51:23,247 INFO L129 PetriNetUnfolder]: 13/109 cut-off events. [2020-10-16 03:51:23,247 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 03:51:23,248 INFO L80 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 109 events. 13/109 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 291 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 95. Up to 10 conditions per place. [2020-10-16 03:51:23,252 INFO L117 LiptonReduction]: Number of co-enabled transitions 3224 [2020-10-16 03:51:24,352 INFO L132 LiptonReduction]: Checked pairs total: 7163 [2020-10-16 03:51:24,352 INFO L134 LiptonReduction]: Total number of compositions: 52 [2020-10-16 03:51:24,352 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1115 [2020-10-16 03:51:24,355 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2020-10-16 03:51:24,355 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 03:51:24,356 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:24,356 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:24,356 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 03:51:24,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:24,356 INFO L82 PathProgramCache]: Analyzing trace with hash -242484138, now seen corresponding path program 1 times [2020-10-16 03:51:24,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:24,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716604647] [2020-10-16 03:51:24,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:24,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:24,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716604647] [2020-10-16 03:51:24,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:24,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:24,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284477550] [2020-10-16 03:51:24,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:24,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:24,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:24,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:24,414 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 126 [2020-10-16 03:51:24,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 35 transitions, 102 flow. Second operand 5 states. [2020-10-16 03:51:24,415 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:24,415 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 126 [2020-10-16 03:51:24,415 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:24,658 INFO L129 PetriNetUnfolder]: 974/1334 cut-off events. [2020-10-16 03:51:24,659 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2020-10-16 03:51:24,664 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2658 conditions, 1334 events. 974/1334 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 5277 event pairs, 413 based on Foata normal form. 337/1331 useless extension candidates. Maximal degree in co-relation 2619. Up to 1288 conditions per place. [2020-10-16 03:51:24,680 INFO L132 encePairwiseOnDemand]: 115/126 looper letters, 20 selfloop transitions, 14 changer transitions 0/51 dead transitions. [2020-10-16 03:51:24,680 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 51 transitions, 202 flow [2020-10-16 03:51:24,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:24,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:24,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 398 transitions. [2020-10-16 03:51:24,684 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6317460317460317 [2020-10-16 03:51:24,684 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 398 transitions. [2020-10-16 03:51:24,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 398 transitions. [2020-10-16 03:51:24,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:24,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 398 transitions. [2020-10-16 03:51:24,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:24,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:24,689 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:24,689 INFO L185 Difference]: Start difference. First operand has 38 places, 35 transitions, 102 flow. Second operand 5 states and 398 transitions. [2020-10-16 03:51:24,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 51 transitions, 202 flow [2020-10-16 03:51:24,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 190 flow, removed 6 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:24,691 INFO L241 Difference]: Finished difference. Result has 43 places, 45 transitions, 166 flow [2020-10-16 03:51:24,692 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=166, PETRI_PLACES=43, PETRI_TRANSITIONS=45} [2020-10-16 03:51:24,692 INFO L342 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2020-10-16 03:51:24,692 INFO L481 AbstractCegarLoop]: Abstraction has has 43 places, 45 transitions, 166 flow [2020-10-16 03:51:24,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:24,692 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:24,692 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:24,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 03:51:24,693 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 03:51:24,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:24,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1098996544, now seen corresponding path program 1 times [2020-10-16 03:51:24,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:24,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111579705] [2020-10-16 03:51:24,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:24,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:24,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111579705] [2020-10-16 03:51:24,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:24,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:24,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138153204] [2020-10-16 03:51:24,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:51:24,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:24,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:51:24,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:51:24,760 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 126 [2020-10-16 03:51:24,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 45 transitions, 166 flow. Second operand 4 states. [2020-10-16 03:51:24,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:24,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 126 [2020-10-16 03:51:24,761 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:25,077 INFO L129 PetriNetUnfolder]: 1528/2068 cut-off events. [2020-10-16 03:51:25,077 INFO L130 PetriNetUnfolder]: For 784/1220 co-relation queries the response was YES. [2020-10-16 03:51:25,084 INFO L80 FinitePrefix]: Finished finitePrefix Result has 5434 conditions, 2068 events. 1528/2068 cut-off events. For 784/1220 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 8594 event pairs, 357 based on Foata normal form. 16/1607 useless extension candidates. Maximal degree in co-relation 5411. Up to 1463 conditions per place. [2020-10-16 03:51:25,108 INFO L132 encePairwiseOnDemand]: 120/126 looper letters, 38 selfloop transitions, 11 changer transitions 0/66 dead transitions. [2020-10-16 03:51:25,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 66 transitions, 324 flow [2020-10-16 03:51:25,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:51:25,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:51:25,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2020-10-16 03:51:25,110 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2020-10-16 03:51:25,110 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 321 transitions. [2020-10-16 03:51:25,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 321 transitions. [2020-10-16 03:51:25,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:25,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 321 transitions. [2020-10-16 03:51:25,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:51:25,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:51:25,113 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:51:25,113 INFO L185 Difference]: Start difference. First operand has 43 places, 45 transitions, 166 flow. Second operand 4 states and 321 transitions. [2020-10-16 03:51:25,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 66 transitions, 324 flow [2020-10-16 03:51:25,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 66 transitions, 324 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:25,117 INFO L241 Difference]: Finished difference. Result has 47 places, 54 transitions, 243 flow [2020-10-16 03:51:25,117 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=243, PETRI_PLACES=47, PETRI_TRANSITIONS=54} [2020-10-16 03:51:25,117 INFO L342 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2020-10-16 03:51:25,117 INFO L481 AbstractCegarLoop]: Abstraction has has 47 places, 54 transitions, 243 flow [2020-10-16 03:51:25,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:51:25,118 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:25,118 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:25,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 03:51:25,118 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 03:51:25,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:25,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1906558445, now seen corresponding path program 1 times [2020-10-16 03:51:25,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:25,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684562183] [2020-10-16 03:51:25,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:51:25,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684562183] [2020-10-16 03:51:25,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:25,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:25,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550167270] [2020-10-16 03:51:25,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:25,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:25,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:25,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:25,172 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 126 [2020-10-16 03:51:25,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 54 transitions, 243 flow. Second operand 5 states. [2020-10-16 03:51:25,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:25,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 126 [2020-10-16 03:51:25,173 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:25,565 INFO L129 PetriNetUnfolder]: 1914/2622 cut-off events. [2020-10-16 03:51:25,565 INFO L130 PetriNetUnfolder]: For 3891/5348 co-relation queries the response was YES. [2020-10-16 03:51:25,572 INFO L80 FinitePrefix]: Finished finitePrefix Result has 8679 conditions, 2622 events. 1914/2622 cut-off events. For 3891/5348 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 11304 event pairs, 712 based on Foata normal form. 24/2148 useless extension candidates. Maximal degree in co-relation 8622. Up to 2539 conditions per place. [2020-10-16 03:51:25,602 INFO L132 encePairwiseOnDemand]: 118/126 looper letters, 34 selfloop transitions, 27 changer transitions 0/79 dead transitions. [2020-10-16 03:51:25,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 79 transitions, 488 flow [2020-10-16 03:51:25,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:25,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:25,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 390 transitions. [2020-10-16 03:51:25,604 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2020-10-16 03:51:25,604 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 390 transitions. [2020-10-16 03:51:25,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 390 transitions. [2020-10-16 03:51:25,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:25,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 390 transitions. [2020-10-16 03:51:25,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:25,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:25,608 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:25,608 INFO L185 Difference]: Start difference. First operand has 47 places, 54 transitions, 243 flow. Second operand 5 states and 390 transitions. [2020-10-16 03:51:25,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 79 transitions, 488 flow [2020-10-16 03:51:25,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 79 transitions, 462 flow, removed 13 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:25,619 INFO L241 Difference]: Finished difference. Result has 53 places, 73 transitions, 429 flow [2020-10-16 03:51:25,619 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=429, PETRI_PLACES=53, PETRI_TRANSITIONS=73} [2020-10-16 03:51:25,619 INFO L342 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2020-10-16 03:51:25,620 INFO L481 AbstractCegarLoop]: Abstraction has has 53 places, 73 transitions, 429 flow [2020-10-16 03:51:25,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:25,620 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:25,620 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:25,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 03:51:25,620 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 03:51:25,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:25,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1748368365, now seen corresponding path program 1 times [2020-10-16 03:51:25,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:25,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726323407] [2020-10-16 03:51:25,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:25,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:51:25,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726323407] [2020-10-16 03:51:25,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:25,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:25,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163141735] [2020-10-16 03:51:25,694 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:51:25,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:25,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:51:25,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:51:25,695 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 126 [2020-10-16 03:51:25,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 73 transitions, 429 flow. Second operand 4 states. [2020-10-16 03:51:25,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:25,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 126 [2020-10-16 03:51:25,696 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:26,222 INFO L129 PetriNetUnfolder]: 2950/4002 cut-off events. [2020-10-16 03:51:26,222 INFO L130 PetriNetUnfolder]: For 7081/8929 co-relation queries the response was YES. [2020-10-16 03:51:26,239 INFO L80 FinitePrefix]: Finished finitePrefix Result has 14746 conditions, 4002 events. 2950/4002 cut-off events. For 7081/8929 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 17800 event pairs, 605 based on Foata normal form. 32/3359 useless extension candidates. Maximal degree in co-relation 14684. Up to 2863 conditions per place. [2020-10-16 03:51:26,317 INFO L132 encePairwiseOnDemand]: 120/126 looper letters, 67 selfloop transitions, 31 changer transitions 0/116 dead transitions. [2020-10-16 03:51:26,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 116 transitions, 867 flow [2020-10-16 03:51:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:51:26,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:51:26,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 321 transitions. [2020-10-16 03:51:26,320 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2020-10-16 03:51:26,321 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 321 transitions. [2020-10-16 03:51:26,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 321 transitions. [2020-10-16 03:51:26,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:26,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 321 transitions. [2020-10-16 03:51:26,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:51:26,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:51:26,325 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:51:26,326 INFO L185 Difference]: Start difference. First operand has 53 places, 73 transitions, 429 flow. Second operand 4 states and 321 transitions. [2020-10-16 03:51:26,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 116 transitions, 867 flow [2020-10-16 03:51:26,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 116 transitions, 848 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:51:26,342 INFO L241 Difference]: Finished difference. Result has 57 places, 102 transitions, 746 flow [2020-10-16 03:51:26,342 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=746, PETRI_PLACES=57, PETRI_TRANSITIONS=102} [2020-10-16 03:51:26,343 INFO L342 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2020-10-16 03:51:26,343 INFO L481 AbstractCegarLoop]: Abstraction has has 57 places, 102 transitions, 746 flow [2020-10-16 03:51:26,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:51:26,343 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:26,344 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:26,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 03:51:26,344 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 03:51:26,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:26,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1110490997, now seen corresponding path program 1 times [2020-10-16 03:51:26,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:26,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001784675] [2020-10-16 03:51:26,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 03:51:26,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001784675] [2020-10-16 03:51:26,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:26,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:26,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550315] [2020-10-16 03:51:26,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:26,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:26,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:26,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:26,451 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 126 [2020-10-16 03:51:26,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 102 transitions, 746 flow. Second operand 5 states. [2020-10-16 03:51:26,452 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:26,452 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 126 [2020-10-16 03:51:26,452 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:27,170 INFO L129 PetriNetUnfolder]: 3760/5211 cut-off events. [2020-10-16 03:51:27,171 INFO L130 PetriNetUnfolder]: For 22197/24386 co-relation queries the response was YES. [2020-10-16 03:51:27,191 INFO L80 FinitePrefix]: Finished finitePrefix Result has 23136 conditions, 5211 events. 3760/5211 cut-off events. For 22197/24386 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 24415 event pairs, 1209 based on Foata normal form. 37/4563 useless extension candidates. Maximal degree in co-relation 23106. Up to 5004 conditions per place. [2020-10-16 03:51:27,243 INFO L132 encePairwiseOnDemand]: 118/126 looper letters, 75 selfloop transitions, 55 changer transitions 0/149 dead transitions. [2020-10-16 03:51:27,243 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 149 transitions, 1388 flow [2020-10-16 03:51:27,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:27,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:27,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 389 transitions. [2020-10-16 03:51:27,245 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6174603174603175 [2020-10-16 03:51:27,246 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 389 transitions. [2020-10-16 03:51:27,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 389 transitions. [2020-10-16 03:51:27,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:27,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 389 transitions. [2020-10-16 03:51:27,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:27,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:27,249 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:27,249 INFO L185 Difference]: Start difference. First operand has 57 places, 102 transitions, 746 flow. Second operand 5 states and 389 transitions. [2020-10-16 03:51:27,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 149 transitions, 1388 flow [2020-10-16 03:51:27,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 149 transitions, 1322 flow, removed 33 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:27,284 INFO L241 Difference]: Finished difference. Result has 63 places, 144 transitions, 1272 flow [2020-10-16 03:51:27,284 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1272, PETRI_PLACES=63, PETRI_TRANSITIONS=144} [2020-10-16 03:51:27,284 INFO L342 CegarLoopForPetriNet]: 38 programPoint places, 25 predicate places. [2020-10-16 03:51:27,285 INFO L481 AbstractCegarLoop]: Abstraction has has 63 places, 144 transitions, 1272 flow [2020-10-16 03:51:27,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:27,285 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:27,285 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:27,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 03:51:27,285 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 03:51:27,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:27,286 INFO L82 PathProgramCache]: Analyzing trace with hash -988692405, now seen corresponding path program 1 times [2020-10-16 03:51:27,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:27,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859043907] [2020-10-16 03:51:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:51:27,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859043907] [2020-10-16 03:51:27,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:27,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 03:51:27,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696195956] [2020-10-16 03:51:27,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:27,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:27,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:27,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:27,336 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 126 [2020-10-16 03:51:27,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 144 transitions, 1272 flow. Second operand 5 states. [2020-10-16 03:51:27,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:27,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 126 [2020-10-16 03:51:27,337 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:27,582 INFO L129 PetriNetUnfolder]: 536/1093 cut-off events. [2020-10-16 03:51:27,582 INFO L130 PetriNetUnfolder]: For 878/883 co-relation queries the response was YES. [2020-10-16 03:51:27,593 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2947 conditions, 1093 events. 536/1093 cut-off events. For 878/883 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 7348 event pairs, 370 based on Foata normal form. 2/1036 useless extension candidates. Maximal degree in co-relation 2913. Up to 922 conditions per place. [2020-10-16 03:51:27,603 INFO L132 encePairwiseOnDemand]: 113/126 looper letters, 15 selfloop transitions, 12 changer transitions 0/83 dead transitions. [2020-10-16 03:51:27,603 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 83 transitions, 663 flow [2020-10-16 03:51:27,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:27,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 429 transitions. [2020-10-16 03:51:27,607 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2020-10-16 03:51:27,607 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 429 transitions. [2020-10-16 03:51:27,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 429 transitions. [2020-10-16 03:51:27,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:27,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 429 transitions. [2020-10-16 03:51:27,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:27,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:27,612 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:27,612 INFO L185 Difference]: Start difference. First operand has 63 places, 144 transitions, 1272 flow. Second operand 5 states and 429 transitions. [2020-10-16 03:51:27,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 83 transitions, 663 flow [2020-10-16 03:51:27,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 83 transitions, 566 flow, removed 20 selfloop flow, removed 7 redundant places. [2020-10-16 03:51:27,623 INFO L241 Difference]: Finished difference. Result has 60 places, 83 transitions, 584 flow [2020-10-16 03:51:27,624 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=584, PETRI_PLACES=60, PETRI_TRANSITIONS=83} [2020-10-16 03:51:27,624 INFO L342 CegarLoopForPetriNet]: 38 programPoint places, 22 predicate places. [2020-10-16 03:51:27,624 INFO L481 AbstractCegarLoop]: Abstraction has has 60 places, 83 transitions, 584 flow [2020-10-16 03:51:27,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:27,625 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:27,625 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:27,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 03:51:27,625 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 03:51:27,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:27,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1594368647, now seen corresponding path program 1 times [2020-10-16 03:51:27,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:27,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767371710] [2020-10-16 03:51:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:51:27,636 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:51:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:51:27,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:51:27,648 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 03:51:27,649 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 03:51:27,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 03:51:27,649 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 03:51:27,650 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-16 03:51:27,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,659 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,659 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,659 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,660 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,660 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,661 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,661 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,661 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,662 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,662 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,663 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,663 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,664 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,664 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,664 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,667 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,667 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,667 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,667 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,667 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,672 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,672 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,679 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,679 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,679 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:27,684 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 03:51:27,684 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:51:27,684 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:51:27,684 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:51:27,684 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:51:27,685 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:51:27,685 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:51:27,685 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:51:27,685 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:51:27,687 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 221 flow [2020-10-16 03:51:27,701 INFO L129 PetriNetUnfolder]: 16/132 cut-off events. [2020-10-16 03:51:27,702 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 03:51:27,703 INFO L80 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 132 events. 16/132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 397 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 125. Up to 12 conditions per place. [2020-10-16 03:51:27,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 88 transitions, 221 flow [2020-10-16 03:51:27,705 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 88 transitions, 221 flow [2020-10-16 03:51:27,705 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:51:27,706 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 88 transitions, 221 flow [2020-10-16 03:51:27,706 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 88 transitions, 221 flow [2020-10-16 03:51:27,706 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 88 places, 88 transitions, 221 flow [2020-10-16 03:51:27,720 INFO L129 PetriNetUnfolder]: 16/132 cut-off events. [2020-10-16 03:51:27,720 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 03:51:27,722 INFO L80 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 132 events. 16/132 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 362 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 125. Up to 12 conditions per place. [2020-10-16 03:51:27,730 INFO L117 LiptonReduction]: Number of co-enabled transitions 4940 [2020-10-16 03:51:29,234 INFO L132 LiptonReduction]: Checked pairs total: 12187 [2020-10-16 03:51:29,235 INFO L134 LiptonReduction]: Total number of compositions: 61 [2020-10-16 03:51:29,235 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1530 [2020-10-16 03:51:29,237 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2020-10-16 03:51:29,237 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 03:51:29,237 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:29,238 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:29,238 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:29,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:29,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1061986474, now seen corresponding path program 1 times [2020-10-16 03:51:29,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:29,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183395920] [2020-10-16 03:51:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:29,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183395920] [2020-10-16 03:51:29,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:29,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:29,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166824485] [2020-10-16 03:51:29,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:29,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:29,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:29,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:29,282 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 149 [2020-10-16 03:51:29,282 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 44 transitions, 133 flow. Second operand 5 states. [2020-10-16 03:51:29,282 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:29,282 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 149 [2020-10-16 03:51:29,282 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:29,969 INFO L129 PetriNetUnfolder]: 5146/6476 cut-off events. [2020-10-16 03:51:29,969 INFO L130 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2020-10-16 03:51:29,989 INFO L80 FinitePrefix]: Finished finitePrefix Result has 12942 conditions, 6476 events. 5146/6476 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 28266 event pairs, 2581 based on Foata normal form. 1303/6164 useless extension candidates. Maximal degree in co-relation 12892. Up to 6419 conditions per place. [2020-10-16 03:51:30,038 INFO L132 encePairwiseOnDemand]: 135/149 looper letters, 25 selfloop transitions, 17 changer transitions 0/63 dead transitions. [2020-10-16 03:51:30,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 63 transitions, 255 flow [2020-10-16 03:51:30,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:30,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:30,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 485 transitions. [2020-10-16 03:51:30,041 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6510067114093959 [2020-10-16 03:51:30,041 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 485 transitions. [2020-10-16 03:51:30,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 485 transitions. [2020-10-16 03:51:30,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:30,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 485 transitions. [2020-10-16 03:51:30,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:30,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:30,044 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:30,045 INFO L185 Difference]: Start difference. First operand has 46 places, 44 transitions, 133 flow. Second operand 5 states and 485 transitions. [2020-10-16 03:51:30,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 63 transitions, 255 flow [2020-10-16 03:51:30,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 63 transitions, 235 flow, removed 10 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:30,047 INFO L241 Difference]: Finished difference. Result has 51 places, 55 transitions, 202 flow [2020-10-16 03:51:30,047 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=202, PETRI_PLACES=51, PETRI_TRANSITIONS=55} [2020-10-16 03:51:30,047 INFO L342 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2020-10-16 03:51:30,047 INFO L481 AbstractCegarLoop]: Abstraction has has 51 places, 55 transitions, 202 flow [2020-10-16 03:51:30,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:30,048 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:30,048 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:30,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 03:51:30,048 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:30,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:30,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1633198036, now seen corresponding path program 1 times [2020-10-16 03:51:30,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:30,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399673246] [2020-10-16 03:51:30,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:30,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399673246] [2020-10-16 03:51:30,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:30,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:30,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980928515] [2020-10-16 03:51:30,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:51:30,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:30,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:51:30,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:51:30,090 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 149 [2020-10-16 03:51:30,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 55 transitions, 202 flow. Second operand 4 states. [2020-10-16 03:51:30,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:30,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 149 [2020-10-16 03:51:30,091 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:31,051 INFO L129 PetriNetUnfolder]: 8181/10269 cut-off events. [2020-10-16 03:51:31,052 INFO L130 PetriNetUnfolder]: For 3789/5174 co-relation queries the response was YES. [2020-10-16 03:51:31,091 INFO L80 FinitePrefix]: Finished finitePrefix Result has 26713 conditions, 10269 events. 8181/10269 cut-off events. For 3789/5174 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 45313 event pairs, 2281 based on Foata normal form. 22/7905 useless extension candidates. Maximal degree in co-relation 26689. Up to 7412 conditions per place. [2020-10-16 03:51:31,174 INFO L132 encePairwiseOnDemand]: 142/149 looper letters, 48 selfloop transitions, 13 changer transitions 0/82 dead transitions. [2020-10-16 03:51:31,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 82 transitions, 400 flow [2020-10-16 03:51:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:51:31,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:51:31,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 390 transitions. [2020-10-16 03:51:31,177 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6543624161073825 [2020-10-16 03:51:31,177 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 390 transitions. [2020-10-16 03:51:31,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 390 transitions. [2020-10-16 03:51:31,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:31,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 390 transitions. [2020-10-16 03:51:31,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:51:31,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:51:31,180 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:51:31,180 INFO L185 Difference]: Start difference. First operand has 51 places, 55 transitions, 202 flow. Second operand 4 states and 390 transitions. [2020-10-16 03:51:31,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 82 transitions, 400 flow [2020-10-16 03:51:31,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 82 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:31,183 INFO L241 Difference]: Finished difference. Result has 55 places, 66 transitions, 295 flow [2020-10-16 03:51:31,183 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=295, PETRI_PLACES=55, PETRI_TRANSITIONS=66} [2020-10-16 03:51:31,183 INFO L342 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2020-10-16 03:51:31,184 INFO L481 AbstractCegarLoop]: Abstraction has has 55 places, 66 transitions, 295 flow [2020-10-16 03:51:31,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:51:31,184 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:31,184 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:31,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 03:51:31,184 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:31,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:31,184 INFO L82 PathProgramCache]: Analyzing trace with hash 956422696, now seen corresponding path program 1 times [2020-10-16 03:51:31,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:31,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083195136] [2020-10-16 03:51:31,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:51:31,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083195136] [2020-10-16 03:51:31,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:31,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:31,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312662749] [2020-10-16 03:51:31,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:31,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:31,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:31,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:31,229 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 149 [2020-10-16 03:51:31,230 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 66 transitions, 295 flow. Second operand 5 states. [2020-10-16 03:51:31,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:31,230 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 149 [2020-10-16 03:51:31,230 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:32,344 INFO L129 PetriNetUnfolder]: 10244/12895 cut-off events. [2020-10-16 03:51:32,345 INFO L130 PetriNetUnfolder]: For 20377/27351 co-relation queries the response was YES. [2020-10-16 03:51:32,383 INFO L80 FinitePrefix]: Finished finitePrefix Result has 42484 conditions, 12895 events. 10244/12895 cut-off events. For 20377/27351 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 57831 event pairs, 4446 based on Foata normal form. 37/10376 useless extension candidates. Maximal degree in co-relation 42426. Up to 12786 conditions per place. [2020-10-16 03:51:32,504 INFO L132 encePairwiseOnDemand]: 140/149 looper letters, 42 selfloop transitions, 34 changer transitions 0/98 dead transitions. [2020-10-16 03:51:32,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 602 flow [2020-10-16 03:51:32,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:32,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:32,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 473 transitions. [2020-10-16 03:51:32,507 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6348993288590604 [2020-10-16 03:51:32,507 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 473 transitions. [2020-10-16 03:51:32,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 473 transitions. [2020-10-16 03:51:32,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:32,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 473 transitions. [2020-10-16 03:51:32,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:32,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:32,511 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:32,511 INFO L185 Difference]: Start difference. First operand has 55 places, 66 transitions, 295 flow. Second operand 5 states and 473 transitions. [2020-10-16 03:51:32,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 602 flow [2020-10-16 03:51:32,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 98 transitions, 570 flow, removed 16 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:32,546 INFO L241 Difference]: Finished difference. Result has 61 places, 90 transitions, 530 flow [2020-10-16 03:51:32,546 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=530, PETRI_PLACES=61, PETRI_TRANSITIONS=90} [2020-10-16 03:51:32,547 INFO L342 CegarLoopForPetriNet]: 46 programPoint places, 15 predicate places. [2020-10-16 03:51:32,547 INFO L481 AbstractCegarLoop]: Abstraction has has 61 places, 90 transitions, 530 flow [2020-10-16 03:51:32,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:32,547 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:32,547 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:32,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 03:51:32,547 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:32,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:32,548 INFO L82 PathProgramCache]: Analyzing trace with hash -760702, now seen corresponding path program 1 times [2020-10-16 03:51:32,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:32,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123136905] [2020-10-16 03:51:32,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:32,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:51:32,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123136905] [2020-10-16 03:51:32,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:32,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:32,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664124428] [2020-10-16 03:51:32,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:51:32,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:32,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:51:32,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:51:32,593 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 149 [2020-10-16 03:51:32,593 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 90 transitions, 530 flow. Second operand 4 states. [2020-10-16 03:51:32,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:32,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 149 [2020-10-16 03:51:32,594 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:34,580 INFO L129 PetriNetUnfolder]: 16006/20104 cut-off events. [2020-10-16 03:51:34,580 INFO L130 PetriNetUnfolder]: For 37273/46883 co-relation queries the response was YES. [2020-10-16 03:51:34,889 INFO L80 FinitePrefix]: Finished finitePrefix Result has 72892 conditions, 20104 events. 16006/20104 cut-off events. For 37273/46883 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 92631 event pairs, 3928 based on Foata normal form. 47/16499 useless extension candidates. Maximal degree in co-relation 72829. Up to 14730 conditions per place. [2020-10-16 03:51:35,053 INFO L132 encePairwiseOnDemand]: 142/149 looper letters, 84 selfloop transitions, 38 changer transitions 0/144 dead transitions. [2020-10-16 03:51:35,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 144 transitions, 1071 flow [2020-10-16 03:51:35,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:51:35,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:51:35,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 390 transitions. [2020-10-16 03:51:35,056 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6543624161073825 [2020-10-16 03:51:35,057 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 390 transitions. [2020-10-16 03:51:35,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 390 transitions. [2020-10-16 03:51:35,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:35,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 390 transitions. [2020-10-16 03:51:35,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:51:35,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:51:35,060 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:51:35,060 INFO L185 Difference]: Start difference. First operand has 61 places, 90 transitions, 530 flow. Second operand 4 states and 390 transitions. [2020-10-16 03:51:35,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 144 transitions, 1071 flow [2020-10-16 03:51:35,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 144 transitions, 1047 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:51:35,135 INFO L241 Difference]: Finished difference. Result has 65 places, 126 transitions, 922 flow [2020-10-16 03:51:35,135 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=922, PETRI_PLACES=65, PETRI_TRANSITIONS=126} [2020-10-16 03:51:35,135 INFO L342 CegarLoopForPetriNet]: 46 programPoint places, 19 predicate places. [2020-10-16 03:51:35,136 INFO L481 AbstractCegarLoop]: Abstraction has has 65 places, 126 transitions, 922 flow [2020-10-16 03:51:35,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:51:35,136 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:35,136 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:35,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 03:51:35,136 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:35,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:35,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1037380060, now seen corresponding path program 1 times [2020-10-16 03:51:35,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:35,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226348874] [2020-10-16 03:51:35,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 03:51:35,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226348874] [2020-10-16 03:51:35,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:35,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:35,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252055738] [2020-10-16 03:51:35,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:35,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:35,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:35,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:35,180 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 149 [2020-10-16 03:51:35,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 126 transitions, 922 flow. Second operand 5 states. [2020-10-16 03:51:35,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:35,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 149 [2020-10-16 03:51:35,180 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:37,278 INFO L129 PetriNetUnfolder]: 20106/25435 cut-off events. [2020-10-16 03:51:37,279 INFO L130 PetriNetUnfolder]: For 115008/145235 co-relation queries the response was YES. [2020-10-16 03:51:37,412 INFO L80 FinitePrefix]: Finished finitePrefix Result has 112231 conditions, 25435 events. 20106/25435 cut-off events. For 115008/145235 co-relation queries the response was YES. Maximal size of possible extension queue 1008. Compared 118816 event pairs, 7519 based on Foata normal form. 80/21647 useless extension candidates. Maximal degree in co-relation 112200. Up to 25122 conditions per place. [2020-10-16 03:51:37,590 INFO L132 encePairwiseOnDemand]: 140/149 looper letters, 93 selfloop transitions, 71 changer transitions 0/187 dead transitions. [2020-10-16 03:51:37,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 187 transitions, 1739 flow [2020-10-16 03:51:37,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:37,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:37,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 472 transitions. [2020-10-16 03:51:37,592 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6335570469798658 [2020-10-16 03:51:37,593 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 472 transitions. [2020-10-16 03:51:37,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 472 transitions. [2020-10-16 03:51:37,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:37,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 472 transitions. [2020-10-16 03:51:37,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:37,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:37,596 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:37,596 INFO L185 Difference]: Start difference. First operand has 65 places, 126 transitions, 922 flow. Second operand 5 states and 472 transitions. [2020-10-16 03:51:37,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 187 transitions, 1739 flow [2020-10-16 03:51:37,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 187 transitions, 1657 flow, removed 41 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:37,739 INFO L241 Difference]: Finished difference. Result has 71 places, 180 transitions, 1599 flow [2020-10-16 03:51:37,739 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1599, PETRI_PLACES=71, PETRI_TRANSITIONS=180} [2020-10-16 03:51:37,739 INFO L342 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2020-10-16 03:51:37,739 INFO L481 AbstractCegarLoop]: Abstraction has has 71 places, 180 transitions, 1599 flow [2020-10-16 03:51:37,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:37,740 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:37,740 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:37,740 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 03:51:37,740 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:37,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:37,740 INFO L82 PathProgramCache]: Analyzing trace with hash -973447414, now seen corresponding path program 1 times [2020-10-16 03:51:37,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:37,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071554960] [2020-10-16 03:51:37,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:37,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:37,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071554960] [2020-10-16 03:51:37,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397268639] [2020-10-16 03:51:37,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-16 03:51:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:37,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-16 03:51:37,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-16 03:51:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:37,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-16 03:51:37,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-16 03:51:37,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955331593] [2020-10-16 03:51:37,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 03:51:37,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:37,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 03:51:37,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 03:51:37,977 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 149 [2020-10-16 03:51:37,978 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 180 transitions, 1599 flow. Second operand 6 states. [2020-10-16 03:51:37,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:37,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 149 [2020-10-16 03:51:37,978 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:39,315 INFO L129 PetriNetUnfolder]: 3067/4929 cut-off events. [2020-10-16 03:51:39,316 INFO L130 PetriNetUnfolder]: For 2202/2207 co-relation queries the response was YES. [2020-10-16 03:51:39,370 INFO L80 FinitePrefix]: Finished finitePrefix Result has 12056 conditions, 4929 events. 3067/4929 cut-off events. For 2202/2207 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 32849 event pairs, 1070 based on Foata normal form. 2/4759 useless extension candidates. Maximal degree in co-relation 12021. Up to 4540 conditions per place. [2020-10-16 03:51:39,402 INFO L132 encePairwiseOnDemand]: 133/149 looper letters, 23 selfloop transitions, 22 changer transitions 0/120 dead transitions. [2020-10-16 03:51:39,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 120 transitions, 933 flow [2020-10-16 03:51:39,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 03:51:39,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 03:51:39,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 597 transitions. [2020-10-16 03:51:39,406 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6677852348993288 [2020-10-16 03:51:39,406 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 597 transitions. [2020-10-16 03:51:39,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 597 transitions. [2020-10-16 03:51:39,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:39,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 597 transitions. [2020-10-16 03:51:39,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 03:51:39,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 03:51:39,409 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 03:51:39,409 INFO L185 Difference]: Start difference. First operand has 71 places, 180 transitions, 1599 flow. Second operand 6 states and 597 transitions. [2020-10-16 03:51:39,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 120 transitions, 933 flow [2020-10-16 03:51:39,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 120 transitions, 804 flow, removed 28 selfloop flow, removed 7 redundant places. [2020-10-16 03:51:39,420 INFO L241 Difference]: Finished difference. Result has 70 places, 115 transitions, 831 flow [2020-10-16 03:51:39,420 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=623, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=831, PETRI_PLACES=70, PETRI_TRANSITIONS=115} [2020-10-16 03:51:39,421 INFO L342 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2020-10-16 03:51:39,421 INFO L481 AbstractCegarLoop]: Abstraction has has 70 places, 115 transitions, 831 flow [2020-10-16 03:51:39,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 03:51:39,421 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:39,421 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:39,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-10-16 03:51:39,622 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:39,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:39,623 INFO L82 PathProgramCache]: Analyzing trace with hash -489841492, now seen corresponding path program 1 times [2020-10-16 03:51:39,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:39,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638941260] [2020-10-16 03:51:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 03:51:39,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638941260] [2020-10-16 03:51:39,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:39,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:39,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156239561] [2020-10-16 03:51:39,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:51:39,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:39,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:51:39,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:51:39,672 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 149 [2020-10-16 03:51:39,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 115 transitions, 831 flow. Second operand 4 states. [2020-10-16 03:51:39,673 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:39,673 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 149 [2020-10-16 03:51:39,673 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:40,098 INFO L129 PetriNetUnfolder]: 1696/3302 cut-off events. [2020-10-16 03:51:40,098 INFO L130 PetriNetUnfolder]: For 2191/2478 co-relation queries the response was YES. [2020-10-16 03:51:40,127 INFO L80 FinitePrefix]: Finished finitePrefix Result has 8283 conditions, 3302 events. 1696/3302 cut-off events. For 2191/2478 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 28285 event pairs, 1292 based on Foata normal form. 4/2449 useless extension candidates. Maximal degree in co-relation 8250. Up to 2352 conditions per place. [2020-10-16 03:51:40,150 INFO L132 encePairwiseOnDemand]: 146/149 looper letters, 69 selfloop transitions, 6 changer transitions 0/114 dead transitions. [2020-10-16 03:51:40,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 114 transitions, 977 flow [2020-10-16 03:51:40,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:51:40,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:51:40,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 362 transitions. [2020-10-16 03:51:40,152 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6073825503355704 [2020-10-16 03:51:40,152 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 362 transitions. [2020-10-16 03:51:40,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 362 transitions. [2020-10-16 03:51:40,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:40,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 362 transitions. [2020-10-16 03:51:40,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:51:40,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:51:40,155 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:51:40,155 INFO L185 Difference]: Start difference. First operand has 70 places, 115 transitions, 831 flow. Second operand 4 states and 362 transitions. [2020-10-16 03:51:40,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 114 transitions, 977 flow [2020-10-16 03:51:40,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 114 transitions, 976 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:51:40,164 INFO L241 Difference]: Finished difference. Result has 71 places, 114 transitions, 838 flow [2020-10-16 03:51:40,165 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=838, PETRI_PLACES=71, PETRI_TRANSITIONS=114} [2020-10-16 03:51:40,165 INFO L342 CegarLoopForPetriNet]: 46 programPoint places, 25 predicate places. [2020-10-16 03:51:40,165 INFO L481 AbstractCegarLoop]: Abstraction has has 71 places, 114 transitions, 838 flow [2020-10-16 03:51:40,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:51:40,165 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:40,165 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:40,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-16 03:51:40,166 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:40,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:40,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1100110844, now seen corresponding path program 1 times [2020-10-16 03:51:40,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:40,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691802029] [2020-10-16 03:51:40,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-16 03:51:40,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691802029] [2020-10-16 03:51:40,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:40,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:40,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912636349] [2020-10-16 03:51:40,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:40,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:40,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:40,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:40,211 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 149 [2020-10-16 03:51:40,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 114 transitions, 838 flow. Second operand 5 states. [2020-10-16 03:51:40,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:40,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 149 [2020-10-16 03:51:40,212 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:40,396 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 4#L698-2true, 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 36#L686-1true, Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), 174#true, 78#L689true, Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), 17#L686-1true, thr1Thread1of5ForFork0InUse, 179#true, 116#(<= (+ thr1Thread2of5ForFork0_~l~0 1) (+ ~s~0 (* 4294967296 (div thr1Thread2of5ForFork0_~l~0 4294967296)) (* 4294967296 (div (+ (* ~s~0 (- 1)) (* (div thr1Thread2of5ForFork0_~l~0 4294967296) (- 4294967296)) thr1Thread2of5ForFork0_~l~0 1) 4294967296)))), thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0NotInUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,396 INFO L384 tUnfolder$Statistics]: this new event has 20 ancestors and is cut-off event [2020-10-16 03:51:40,396 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2020-10-16 03:51:40,397 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2020-10-16 03:51:40,397 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2020-10-16 03:51:40,404 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 4#L698-2true, 69#L686-1true, Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), 17#L686-1true, 177#(<= (+ thr1Thread3of5ForFork0_~l~0 1) (+ ~s~0 (* 4294967296 (div thr1Thread3of5ForFork0_~l~0 4294967296)) (* 4294967296 (div (+ (* ~s~0 (- 1)) (* (div thr1Thread3of5ForFork0_~l~0 4294967296) (- 4294967296)) thr1Thread3of5ForFork0_~l~0 1) 4294967296)))), thr1Thread1of5ForFork0InUse, 179#true, 51#L689true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0NotInUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,404 INFO L384 tUnfolder$Statistics]: this new event has 20 ancestors and is cut-off event [2020-10-16 03:51:40,405 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2020-10-16 03:51:40,405 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2020-10-16 03:51:40,405 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2020-10-16 03:51:40,437 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 4#L698-2true, 36#L686-1true, 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 69#L686-1true, 102#(<= (+ thr1Thread1of5ForFork0_~l~0 1) (+ ~s~0 (* 4294967296 (div thr1Thread1of5ForFork0_~l~0 4294967296)) (* 4294967296 (div (+ thr1Thread1of5ForFork0_~l~0 (* ~s~0 (- 1)) (* (div thr1Thread1of5ForFork0_~l~0 4294967296) (- 4294967296)) 1) 4294967296)))), Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), 13#L689true, 174#true, Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), thr1Thread1of5ForFork0InUse, 179#true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0NotInUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,438 INFO L384 tUnfolder$Statistics]: this new event has 20 ancestors and is not cut-off event [2020-10-16 03:51:40,438 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is not cut-off event [2020-10-16 03:51:40,438 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is not cut-off event [2020-10-16 03:51:40,438 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is not cut-off event [2020-10-16 03:51:40,440 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 36#L686-1true, 4#L698-2true, 69#L686-1true, 101#(and (<= (+ thr1Thread1of5ForFork0_~l~0 (* 4294967296 (div ~s~0 4294967296))) (+ ~s~0 (* 4294967296 (div thr1Thread1of5ForFork0_~l~0 4294967296)))) (<= (+ ~s~0 (* 4294967296 (div thr1Thread1of5ForFork0_~l~0 4294967296))) (+ thr1Thread1of5ForFork0_~l~0 (* 4294967296 (div ~s~0 4294967296))))), Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), 174#true, Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), thr1Thread1of5ForFork0InUse, 179#true, 19#L690-3true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0NotInUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,440 INFO L384 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2020-10-16 03:51:40,441 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2020-10-16 03:51:40,441 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2020-10-16 03:51:40,441 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2020-10-16 03:51:40,444 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 4#L698-2true, 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 36#L686-1true, Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), 174#true, Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), 17#L686-1true, 49#L690-3true, thr1Thread1of5ForFork0InUse, 179#true, 115#(and (<= (+ (* 4294967296 (div ~s~0 4294967296)) thr1Thread2of5ForFork0_~l~0) (+ ~s~0 (* 4294967296 (div thr1Thread2of5ForFork0_~l~0 4294967296)))) (<= (+ ~s~0 (* 4294967296 (div thr1Thread2of5ForFork0_~l~0 4294967296))) (+ (* 4294967296 (div ~s~0 4294967296)) thr1Thread2of5ForFork0_~l~0))), thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0NotInUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,444 INFO L384 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2020-10-16 03:51:40,444 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2020-10-16 03:51:40,444 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2020-10-16 03:51:40,444 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2020-10-16 03:51:40,448 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 4#L698-2true, 69#L686-1true, Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), 176#(and (<= (+ (* 4294967296 (div ~s~0 4294967296)) thr1Thread3of5ForFork0_~l~0) (+ ~s~0 (* 4294967296 (div thr1Thread3of5ForFork0_~l~0 4294967296)))) (<= (+ ~s~0 (* 4294967296 (div thr1Thread3of5ForFork0_~l~0 4294967296))) (+ (* 4294967296 (div ~s~0 4294967296)) thr1Thread3of5ForFork0_~l~0))), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), 17#L686-1true, thr1Thread1of5ForFork0InUse, 179#true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0NotInUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), 31#L690-3true, Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,449 INFO L384 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2020-10-16 03:51:40,449 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2020-10-16 03:51:40,449 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2020-10-16 03:51:40,449 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2020-10-16 03:51:40,498 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 36#L686-1true, 4#L698-2true, 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 101#(and (<= (+ thr1Thread1of5ForFork0_~l~0 (* 4294967296 (div ~s~0 4294967296))) (+ ~s~0 (* 4294967296 (div thr1Thread1of5ForFork0_~l~0 4294967296)))) (<= (+ ~s~0 (* 4294967296 (div thr1Thread1of5ForFork0_~l~0 4294967296))) (+ thr1Thread1of5ForFork0_~l~0 (* 4294967296 (div ~s~0 4294967296))))), 69#L686-1true, 5#L686-1true, Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), 174#true, Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), thr1Thread1of5ForFork0InUse, 19#L690-3true, 179#true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0InUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,499 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2020-10-16 03:51:40,499 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2020-10-16 03:51:40,499 INFO L387 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2020-10-16 03:51:40,499 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2020-10-16 03:51:40,507 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 4#L698-2true, 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 36#L686-1true, 5#L686-1true, Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), 174#true, Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), 17#L686-1true, 49#L690-3true, thr1Thread1of5ForFork0InUse, 179#true, 115#(and (<= (+ (* 4294967296 (div ~s~0 4294967296)) thr1Thread2of5ForFork0_~l~0) (+ ~s~0 (* 4294967296 (div thr1Thread2of5ForFork0_~l~0 4294967296)))) (<= (+ ~s~0 (* 4294967296 (div thr1Thread2of5ForFork0_~l~0 4294967296))) (+ (* 4294967296 (div ~s~0 4294967296)) thr1Thread2of5ForFork0_~l~0))), thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0InUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,507 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2020-10-16 03:51:40,507 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2020-10-16 03:51:40,508 INFO L387 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2020-10-16 03:51:40,508 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2020-10-16 03:51:40,522 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 4#L698-2true, 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 69#L686-1true, 5#L686-1true, Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), 176#(and (<= (+ (* 4294967296 (div ~s~0 4294967296)) thr1Thread3of5ForFork0_~l~0) (+ ~s~0 (* 4294967296 (div thr1Thread3of5ForFork0_~l~0 4294967296)))) (<= (+ ~s~0 (* 4294967296 (div thr1Thread3of5ForFork0_~l~0 4294967296))) (+ (* 4294967296 (div ~s~0 4294967296)) thr1Thread3of5ForFork0_~l~0))), 17#L686-1true, thr1Thread1of5ForFork0InUse, 179#true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0InUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0)), 31#L690-3true]) [2020-10-16 03:51:40,522 INFO L384 tUnfolder$Statistics]: this new event has 23 ancestors and is cut-off event [2020-10-16 03:51:40,522 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2020-10-16 03:51:40,522 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2020-10-16 03:51:40,523 INFO L387 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2020-10-16 03:51:40,538 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 36#L686-1true, 4#L698-2true, 5#L686-1true, 69#L686-1true, 102#(<= (+ thr1Thread1of5ForFork0_~l~0 1) (+ ~s~0 (* 4294967296 (div thr1Thread1of5ForFork0_~l~0 4294967296)) (* 4294967296 (div (+ thr1Thread1of5ForFork0_~l~0 (* ~s~0 (- 1)) (* (div thr1Thread1of5ForFork0_~l~0 4294967296) (- 4294967296)) 1) 4294967296)))), Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), 13#L689true, 174#true, Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), thr1Thread1of5ForFork0InUse, 179#true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0InUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,539 INFO L384 tUnfolder$Statistics]: this new event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,539 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,539 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,539 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,550 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 4#L698-2true, 36#L686-1true, 5#L686-1true, Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), 174#true, 78#L689true, Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), 17#L686-1true, thr1Thread1of5ForFork0InUse, 179#true, 116#(<= (+ thr1Thread2of5ForFork0_~l~0 1) (+ ~s~0 (* 4294967296 (div thr1Thread2of5ForFork0_~l~0 4294967296)) (* 4294967296 (div (+ (* ~s~0 (- 1)) (* (div thr1Thread2of5ForFork0_~l~0 4294967296) (- 4294967296)) thr1Thread2of5ForFork0_~l~0 1) 4294967296)))), thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0InUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,551 INFO L384 tUnfolder$Statistics]: this new event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,551 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,551 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,551 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,676 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([649] thr1ENTRY-->L686-1: Formula: (and (= v_thr1Thread4of5ForFork0_~l~0_45 0) (not (= (mod v_~r~0_580 4294967296) 4294967295)) (= v_thr1Thread4of5ForFork0_~arg.offset_4 |v_thr1Thread4of5ForFork0_#in~arg.offset_4|) (= v_~r~0_579 (+ v_~r~0_580 1)) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7) (= v_thr1Thread4of5ForFork0_~arg.base_4 |v_thr1Thread4of5ForFork0_#in~arg.base_4|) (= |v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7| 1)) InVars {thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, ~r~0=v_~r~0_580} OutVars{thr1Thread4of5ForFork0_#in~arg.base=|v_thr1Thread4of5ForFork0_#in~arg.base_4|, thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond=|v_thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond_7|, thr1Thread4of5ForFork0_~l~0=v_thr1Thread4of5ForFork0_~l~0_45, thr1Thread4of5ForFork0_#in~arg.offset=|v_thr1Thread4of5ForFork0_#in~arg.offset_4|, thr1Thread4of5ForFork0_assume_abort_if_not_~cond=v_thr1Thread4of5ForFork0_assume_abort_if_not_~cond_7, thr1Thread4of5ForFork0_~arg.base=v_thr1Thread4of5ForFork0_~arg.base_4, ~r~0=v_~r~0_579, thr1Thread4of5ForFork0_~arg.offset=v_thr1Thread4of5ForFork0_~arg.offset_4} AuxVars[] AssignedVars[thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond, thr1Thread4of5ForFork0_~l~0, thr1Thread4of5ForFork0_assume_abort_if_not_~cond, thr1Thread4of5ForFork0_~arg.base, ~r~0, thr1Thread4of5ForFork0_~arg.offset][70], [64#L686-1true, Black: 93#(and (<= ~s~0 0) (<= 0 ~s~0)), 132#(and (<= 2 ~r~0) (<= (div ~r~0 4294967296) 0)), 4#L698-2true, 69#L686-1true, 5#L686-1true, Black: 131#(and (<= 1 ~r~0) (<= ~r~0 1)), Black: 163#(and (<= ~r~0 2) (<= 2 ~r~0)), Black: 107#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 109#(and (<= ~s~0 1) (= thr1Thread2of5ForFork0_~l~0 0) (<= 1 ~s~0)), 17#L686-1true, 177#(<= (+ thr1Thread3of5ForFork0_~l~0 1) (+ ~s~0 (* 4294967296 (div thr1Thread3of5ForFork0_~l~0 4294967296)) (* 4294967296 (div (+ (* ~s~0 (- 1)) (* (div thr1Thread3of5ForFork0_~l~0 4294967296) (- 4294967296)) thr1Thread3of5ForFork0_~l~0 1) 4294967296)))), thr1Thread1of5ForFork0InUse, 179#true, 51#L689true, thr1Thread2of5ForFork0InUse, thr1Thread3of5ForFork0InUse, thr1Thread4of5ForFork0InUse, thr1Thread5of5ForFork0InUse, 91#true, Black: 122#(and (<= ~s~0 0) (<= 0 ~s~0)), Black: 124#(and (<= ~s~0 1) (<= 1 ~s~0) (= thr1Thread3of5ForFork0_~l~0 0))]) [2020-10-16 03:51:40,677 INFO L384 tUnfolder$Statistics]: this new event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,677 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,677 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,677 INFO L387 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2020-10-16 03:51:40,760 INFO L129 PetriNetUnfolder]: 2393/4736 cut-off events. [2020-10-16 03:51:40,761 INFO L130 PetriNetUnfolder]: For 2866/3109 co-relation queries the response was YES. [2020-10-16 03:51:40,783 INFO L80 FinitePrefix]: Finished finitePrefix Result has 11740 conditions, 4736 events. 2393/4736 cut-off events. For 2866/3109 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 43619 event pairs, 1842 based on Foata normal form. 12/3594 useless extension candidates. Maximal degree in co-relation 11707. Up to 3259 conditions per place. [2020-10-16 03:51:40,801 INFO L132 encePairwiseOnDemand]: 140/149 looper letters, 48 selfloop transitions, 74 changer transitions 0/164 dead transitions. [2020-10-16 03:51:40,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 164 transitions, 1479 flow [2020-10-16 03:51:40,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:40,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:40,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 467 transitions. [2020-10-16 03:51:40,803 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6268456375838927 [2020-10-16 03:51:40,803 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 467 transitions. [2020-10-16 03:51:40,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 467 transitions. [2020-10-16 03:51:40,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:40,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 467 transitions. [2020-10-16 03:51:40,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:40,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:40,806 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:40,806 INFO L185 Difference]: Start difference. First operand has 71 places, 114 transitions, 838 flow. Second operand 5 states and 467 transitions. [2020-10-16 03:51:40,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 164 transitions, 1479 flow [2020-10-16 03:51:40,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 164 transitions, 1475 flow, removed 1 selfloop flow, removed 1 redundant places. [2020-10-16 03:51:40,817 INFO L241 Difference]: Finished difference. Result has 76 places, 158 transitions, 1477 flow [2020-10-16 03:51:40,818 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1477, PETRI_PLACES=76, PETRI_TRANSITIONS=158} [2020-10-16 03:51:40,818 INFO L342 CegarLoopForPetriNet]: 46 programPoint places, 30 predicate places. [2020-10-16 03:51:40,818 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 158 transitions, 1477 flow [2020-10-16 03:51:40,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:40,818 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:40,818 INFO L255 CegarLoopForPetriNet]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:40,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-16 03:51:40,819 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:40,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:40,819 INFO L82 PathProgramCache]: Analyzing trace with hash -475239234, now seen corresponding path program 1 times [2020-10-16 03:51:40,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:40,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111655969] [2020-10-16 03:51:40,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:51:40,827 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:51:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:51:40,832 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:51:40,837 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 03:51:40,837 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 03:51:40,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-16 03:51:40,838 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 03:51:40,838 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-16 03:51:40,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,849 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,849 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,849 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,849 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,855 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,855 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,857 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,857 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,858 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,858 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,858 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,858 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,859 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,859 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,859 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,859 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,859 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,859 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,859 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,877 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,880 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,880 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,881 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,881 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,881 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,883 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,883 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,883 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,883 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,883 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,884 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,884 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:51:40,885 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-16 03:51:40,885 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:51:40,885 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:51:40,885 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:51:40,885 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:51:40,886 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:51:40,886 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:51:40,886 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:51:40,886 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:51:40,887 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions, 264 flow [2020-10-16 03:51:40,899 INFO L129 PetriNetUnfolder]: 19/155 cut-off events. [2020-10-16 03:51:40,899 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-16 03:51:40,901 INFO L80 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 155 events. 19/155 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 462 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 14 conditions per place. [2020-10-16 03:51:40,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 102 transitions, 264 flow [2020-10-16 03:51:40,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 102 transitions, 264 flow [2020-10-16 03:51:40,903 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:51:40,903 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 102 transitions, 264 flow [2020-10-16 03:51:40,903 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 102 transitions, 264 flow [2020-10-16 03:51:40,903 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions, 264 flow [2020-10-16 03:51:40,915 INFO L129 PetriNetUnfolder]: 19/155 cut-off events. [2020-10-16 03:51:40,915 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-16 03:51:40,916 INFO L80 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 155 events. 19/155 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 450 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 156. Up to 14 conditions per place. [2020-10-16 03:51:40,924 INFO L117 LiptonReduction]: Number of co-enabled transitions 7020 [2020-10-16 03:51:42,690 INFO L132 LiptonReduction]: Checked pairs total: 20409 [2020-10-16 03:51:42,690 INFO L134 LiptonReduction]: Total number of compositions: 72 [2020-10-16 03:51:42,691 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1788 [2020-10-16 03:51:42,692 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2020-10-16 03:51:42,692 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 03:51:42,692 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:42,692 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:42,692 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:42,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:42,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1232360898, now seen corresponding path program 1 times [2020-10-16 03:51:42,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:42,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155623088] [2020-10-16 03:51:42,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:42,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:42,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155623088] [2020-10-16 03:51:42,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:42,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:42,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031683662] [2020-10-16 03:51:42,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:42,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:42,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:42,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:42,730 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2020-10-16 03:51:42,730 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 166 flow. Second operand 5 states. [2020-10-16 03:51:42,730 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:42,730 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2020-10-16 03:51:42,731 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:45,219 INFO L129 PetriNetUnfolder]: 25642/30822 cut-off events. [2020-10-16 03:51:45,219 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2020-10-16 03:51:45,380 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61635 conditions, 30822 events. 25642/30822 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 1507. Compared 139723 event pairs, 14105 based on Foata normal form. 5149/28377 useless extension candidates. Maximal degree in co-relation 61573. Up to 30754 conditions per place. [2020-10-16 03:51:45,534 INFO L132 encePairwiseOnDemand]: 157/174 looper letters, 30 selfloop transitions, 20 changer transitions 0/75 dead transitions. [2020-10-16 03:51:45,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 75 transitions, 310 flow [2020-10-16 03:51:45,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:45,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 567 transitions. [2020-10-16 03:51:45,537 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6517241379310345 [2020-10-16 03:51:45,537 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 567 transitions. [2020-10-16 03:51:45,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 567 transitions. [2020-10-16 03:51:45,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:45,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 567 transitions. [2020-10-16 03:51:45,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:45,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:45,541 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:45,541 INFO L185 Difference]: Start difference. First operand has 54 places, 53 transitions, 166 flow. Second operand 5 states and 567 transitions. [2020-10-16 03:51:45,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 75 transitions, 310 flow [2020-10-16 03:51:45,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 75 transitions, 280 flow, removed 15 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:45,543 INFO L241 Difference]: Finished difference. Result has 59 places, 65 transitions, 238 flow [2020-10-16 03:51:45,543 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=238, PETRI_PLACES=59, PETRI_TRANSITIONS=65} [2020-10-16 03:51:45,543 INFO L342 CegarLoopForPetriNet]: 54 programPoint places, 5 predicate places. [2020-10-16 03:51:45,544 INFO L481 AbstractCegarLoop]: Abstraction has has 59 places, 65 transitions, 238 flow [2020-10-16 03:51:45,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:45,544 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:45,544 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:45,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-16 03:51:45,544 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:45,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:45,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1112151552, now seen corresponding path program 1 times [2020-10-16 03:51:45,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:45,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378941855] [2020-10-16 03:51:45,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:51:45,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378941855] [2020-10-16 03:51:45,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:45,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:45,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747520171] [2020-10-16 03:51:45,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:51:45,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:45,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:51:45,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:51:45,592 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2020-10-16 03:51:45,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 65 transitions, 238 flow. Second operand 4 states. [2020-10-16 03:51:45,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:45,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2020-10-16 03:51:45,592 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:49,708 INFO L129 PetriNetUnfolder]: 40946/49186 cut-off events. [2020-10-16 03:51:49,708 INFO L130 PetriNetUnfolder]: For 18227/23331 co-relation queries the response was YES. [2020-10-16 03:51:49,916 INFO L80 FinitePrefix]: Finished finitePrefix Result has 127098 conditions, 49186 events. 40946/49186 cut-off events. For 18227/23331 co-relation queries the response was YES. Maximal size of possible extension queue 1866. Compared 224820 event pairs, 12801 based on Foata normal form. 28/37760 useless extension candidates. Maximal degree in co-relation 127073. Up to 35825 conditions per place. [2020-10-16 03:51:50,186 INFO L132 encePairwiseOnDemand]: 166/174 looper letters, 58 selfloop transitions, 15 changer transitions 0/98 dead transitions. [2020-10-16 03:51:50,186 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 98 transitions, 476 flow [2020-10-16 03:51:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:51:50,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:51:50,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2020-10-16 03:51:50,188 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6537356321839081 [2020-10-16 03:51:50,188 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2020-10-16 03:51:50,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2020-10-16 03:51:50,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:50,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2020-10-16 03:51:50,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:51:50,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:51:50,192 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:51:50,192 INFO L185 Difference]: Start difference. First operand has 59 places, 65 transitions, 238 flow. Second operand 4 states and 455 transitions. [2020-10-16 03:51:50,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 98 transitions, 476 flow [2020-10-16 03:51:50,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 98 transitions, 476 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:50,196 INFO L241 Difference]: Finished difference. Result has 63 places, 78 transitions, 347 flow [2020-10-16 03:51:50,196 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=347, PETRI_PLACES=63, PETRI_TRANSITIONS=78} [2020-10-16 03:51:50,196 INFO L342 CegarLoopForPetriNet]: 54 programPoint places, 9 predicate places. [2020-10-16 03:51:50,196 INFO L481 AbstractCegarLoop]: Abstraction has has 63 places, 78 transitions, 347 flow [2020-10-16 03:51:50,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:51:50,197 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:50,197 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:50,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-16 03:51:50,197 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:50,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:50,197 INFO L82 PathProgramCache]: Analyzing trace with hash 338611599, now seen corresponding path program 1 times [2020-10-16 03:51:50,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:50,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299623063] [2020-10-16 03:51:50,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:50,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:51:50,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299623063] [2020-10-16 03:51:50,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:50,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:50,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263265583] [2020-10-16 03:51:50,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:51:50,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:50,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:51:50,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:51:50,248 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2020-10-16 03:51:50,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 78 transitions, 347 flow. Second operand 5 states. [2020-10-16 03:51:50,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:50,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2020-10-16 03:51:50,249 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:51:56,776 INFO L129 PetriNetUnfolder]: 51167/61528 cut-off events. [2020-10-16 03:51:56,776 INFO L130 PetriNetUnfolder]: For 98740/132119 co-relation queries the response was YES. [2020-10-16 03:51:57,119 INFO L80 FinitePrefix]: Finished finitePrefix Result has 201325 conditions, 61528 events. 51167/61528 cut-off events. For 98740/132119 co-relation queries the response was YES. Maximal size of possible extension queue 2349. Compared 281737 event pairs, 24298 based on Foata normal form. 50/49015 useless extension candidates. Maximal degree in co-relation 201266. Up to 61379 conditions per place. [2020-10-16 03:51:57,529 INFO L132 encePairwiseOnDemand]: 164/174 looper letters, 50 selfloop transitions, 41 changer transitions 0/117 dead transitions. [2020-10-16 03:51:57,529 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 117 transitions, 716 flow [2020-10-16 03:51:57,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:51:57,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:51:57,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 551 transitions. [2020-10-16 03:51:57,531 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2020-10-16 03:51:57,531 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 551 transitions. [2020-10-16 03:51:57,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 551 transitions. [2020-10-16 03:51:57,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:51:57,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 551 transitions. [2020-10-16 03:51:57,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:51:57,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:51:57,535 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:51:57,535 INFO L185 Difference]: Start difference. First operand has 63 places, 78 transitions, 347 flow. Second operand 5 states and 551 transitions. [2020-10-16 03:51:57,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 117 transitions, 716 flow [2020-10-16 03:51:57,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 117 transitions, 678 flow, removed 19 selfloop flow, removed 0 redundant places. [2020-10-16 03:51:57,985 INFO L241 Difference]: Finished difference. Result has 69 places, 107 transitions, 631 flow [2020-10-16 03:51:57,986 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=631, PETRI_PLACES=69, PETRI_TRANSITIONS=107} [2020-10-16 03:51:57,986 INFO L342 CegarLoopForPetriNet]: 54 programPoint places, 15 predicate places. [2020-10-16 03:51:57,986 INFO L481 AbstractCegarLoop]: Abstraction has has 69 places, 107 transitions, 631 flow [2020-10-16 03:51:57,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:51:57,986 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:51:57,986 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:51:57,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-16 03:51:57,987 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:51:57,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:51:57,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1011762542, now seen corresponding path program 1 times [2020-10-16 03:51:57,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:51:57,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720197675] [2020-10-16 03:51:57,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:51:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:51:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:51:58,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720197675] [2020-10-16 03:51:58,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:51:58,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:51:58,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88401046] [2020-10-16 03:51:58,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:51:58,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:51:58,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:51:58,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:51:58,035 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2020-10-16 03:51:58,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 107 transitions, 631 flow. Second operand 4 states. [2020-10-16 03:51:58,035 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:51:58,035 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2020-10-16 03:51:58,036 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:52:09,350 INFO L129 PetriNetUnfolder]: 80452/96669 cut-off events. [2020-10-16 03:52:09,350 INFO L130 PetriNetUnfolder]: For 183261/293412 co-relation queries the response was YES. [2020-10-16 03:52:09,997 INFO L80 FinitePrefix]: Finished finitePrefix Result has 345889 conditions, 96669 events. 80452/96669 cut-off events. For 183261/293412 co-relation queries the response was YES. Maximal size of possible extension queue 3033. Compared 456488 event pairs, 22177 based on Foata normal form. 62/78270 useless extension candidates. Maximal degree in co-relation 345825. Up to 71458 conditions per place. [2020-10-16 03:52:11,429 INFO L132 encePairwiseOnDemand]: 166/174 looper letters, 101 selfloop transitions, 45 changer transitions 0/172 dead transitions. [2020-10-16 03:52:11,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 172 transitions, 1275 flow [2020-10-16 03:52:11,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:52:11,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:52:11,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2020-10-16 03:52:11,431 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6537356321839081 [2020-10-16 03:52:11,432 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2020-10-16 03:52:11,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2020-10-16 03:52:11,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:52:11,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2020-10-16 03:52:11,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:52:11,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:52:11,434 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:52:11,434 INFO L185 Difference]: Start difference. First operand has 69 places, 107 transitions, 631 flow. Second operand 4 states and 455 transitions. [2020-10-16 03:52:11,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 172 transitions, 1275 flow [2020-10-16 03:52:12,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 172 transitions, 1246 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:52:12,883 INFO L241 Difference]: Finished difference. Result has 73 places, 150 transitions, 1098 flow [2020-10-16 03:52:12,883 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1098, PETRI_PLACES=73, PETRI_TRANSITIONS=150} [2020-10-16 03:52:12,884 INFO L342 CegarLoopForPetriNet]: 54 programPoint places, 19 predicate places. [2020-10-16 03:52:12,884 INFO L481 AbstractCegarLoop]: Abstraction has has 73 places, 150 transitions, 1098 flow [2020-10-16 03:52:12,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:52:12,884 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:52:12,884 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:52:12,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-16 03:52:12,884 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:52:12,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:52:12,885 INFO L82 PathProgramCache]: Analyzing trace with hash 508059146, now seen corresponding path program 1 times [2020-10-16 03:52:12,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:52:12,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626818956] [2020-10-16 03:52:12,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:52:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:52:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 03:52:12,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626818956] [2020-10-16 03:52:12,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:52:12,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:52:12,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882528860] [2020-10-16 03:52:12,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:52:12,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:52:12,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:52:12,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:52:12,926 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2020-10-16 03:52:12,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 150 transitions, 1098 flow. Second operand 5 states. [2020-10-16 03:52:12,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:52:12,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2020-10-16 03:52:12,927 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:52:27,453 INFO L129 PetriNetUnfolder]: 100726/121272 cut-off events. [2020-10-16 03:52:27,453 INFO L130 PetriNetUnfolder]: For 559833/898679 co-relation queries the response was YES. [2020-10-16 03:52:28,149 INFO L80 FinitePrefix]: Finished finitePrefix Result has 529290 conditions, 121272 events. 100726/121272 cut-off events. For 559833/898679 co-relation queries the response was YES. Maximal size of possible extension queue 3798. Compared 571618 event pairs, 41784 based on Foata normal form. 123/101361 useless extension candidates. Maximal degree in co-relation 529258. Up to 120855 conditions per place. [2020-10-16 03:52:29,069 INFO L132 encePairwiseOnDemand]: 164/174 looper letters, 111 selfloop transitions, 87 changer transitions 0/225 dead transitions. [2020-10-16 03:52:29,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 225 transitions, 2090 flow [2020-10-16 03:52:29,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:52:29,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:52:29,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 550 transitions. [2020-10-16 03:52:29,072 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.632183908045977 [2020-10-16 03:52:29,072 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 550 transitions. [2020-10-16 03:52:29,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 550 transitions. [2020-10-16 03:52:29,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:52:29,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 550 transitions. [2020-10-16 03:52:29,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:52:29,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:52:29,075 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:52:29,075 INFO L185 Difference]: Start difference. First operand has 73 places, 150 transitions, 1098 flow. Second operand 5 states and 550 transitions. [2020-10-16 03:52:29,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 225 transitions, 2090 flow [2020-10-16 03:52:31,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 225 transitions, 1992 flow, removed 49 selfloop flow, removed 0 redundant places. [2020-10-16 03:52:31,610 INFO L241 Difference]: Finished difference. Result has 79 places, 216 transitions, 1926 flow [2020-10-16 03:52:31,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=1024, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1926, PETRI_PLACES=79, PETRI_TRANSITIONS=216} [2020-10-16 03:52:31,611 INFO L342 CegarLoopForPetriNet]: 54 programPoint places, 25 predicate places. [2020-10-16 03:52:31,611 INFO L481 AbstractCegarLoop]: Abstraction has has 79 places, 216 transitions, 1926 flow [2020-10-16 03:52:31,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:52:31,611 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:52:31,611 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:52:31,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-16 03:52:31,612 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:52:31,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:52:31,612 INFO L82 PathProgramCache]: Analyzing trace with hash 287062734, now seen corresponding path program 1 times [2020-10-16 03:52:31,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:52:31,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454973771] [2020-10-16 03:52:31,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:52:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:52:31,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:52:31,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454973771] [2020-10-16 03:52:31,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:52:31,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 03:52:31,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934302993] [2020-10-16 03:52:31,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:52:31,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:52:31,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:52:31,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:52:31,667 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 174 [2020-10-16 03:52:31,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 216 transitions, 1926 flow. Second operand 5 states. [2020-10-16 03:52:31,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:52:31,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 174 [2020-10-16 03:52:31,668 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:52:35,674 INFO L129 PetriNetUnfolder]: 15116/21541 cut-off events. [2020-10-16 03:52:35,675 INFO L130 PetriNetUnfolder]: For 6178/6183 co-relation queries the response was YES. [2020-10-16 03:52:35,848 INFO L80 FinitePrefix]: Finished finitePrefix Result has 50379 conditions, 21541 events. 15116/21541 cut-off events. For 6178/6183 co-relation queries the response was YES. Maximal size of possible extension queue 1794. Compared 146614 event pairs, 13007 based on Foata normal form. 2/21091 useless extension candidates. Maximal degree in co-relation 50343. Up to 21144 conditions per place. [2020-10-16 03:52:35,950 INFO L132 encePairwiseOnDemand]: 155/174 looper letters, 21 selfloop transitions, 16 changer transitions 0/131 dead transitions. [2020-10-16 03:52:35,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 131 transitions, 1069 flow [2020-10-16 03:52:35,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:52:35,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:52:35,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 583 transitions. [2020-10-16 03:52:35,952 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6701149425287356 [2020-10-16 03:52:35,952 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 583 transitions. [2020-10-16 03:52:35,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 583 transitions. [2020-10-16 03:52:35,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:52:35,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 583 transitions. [2020-10-16 03:52:35,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:52:35,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:52:35,955 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:52:35,955 INFO L185 Difference]: Start difference. First operand has 79 places, 216 transitions, 1926 flow. Second operand 5 states and 583 transitions. [2020-10-16 03:52:35,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 131 transitions, 1069 flow [2020-10-16 03:52:35,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 131 transitions, 908 flow, removed 36 selfloop flow, removed 7 redundant places. [2020-10-16 03:52:35,971 INFO L241 Difference]: Finished difference. Result has 76 places, 131 transitions, 932 flow [2020-10-16 03:52:35,971 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=932, PETRI_PLACES=76, PETRI_TRANSITIONS=131} [2020-10-16 03:52:35,971 INFO L342 CegarLoopForPetriNet]: 54 programPoint places, 22 predicate places. [2020-10-16 03:52:35,971 INFO L481 AbstractCegarLoop]: Abstraction has has 76 places, 131 transitions, 932 flow [2020-10-16 03:52:35,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:52:35,971 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:52:35,972 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:52:35,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-16 03:52:35,972 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:52:35,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:52:35,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1381432313, now seen corresponding path program 1 times [2020-10-16 03:52:35,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:52:35,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815457504] [2020-10-16 03:52:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:52:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:52:36,030 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 03:52:36,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815457504] [2020-10-16 03:52:36,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:52:36,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:52:36,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963207465] [2020-10-16 03:52:36,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:52:36,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:52:36,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:52:36,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:52:36,033 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2020-10-16 03:52:36,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 131 transitions, 932 flow. Second operand 4 states. [2020-10-16 03:52:36,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:52:36,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2020-10-16 03:52:36,034 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:52:37,509 INFO L129 PetriNetUnfolder]: 10899/16973 cut-off events. [2020-10-16 03:52:37,509 INFO L130 PetriNetUnfolder]: For 10241/11031 co-relation queries the response was YES. [2020-10-16 03:52:37,641 INFO L80 FinitePrefix]: Finished finitePrefix Result has 41920 conditions, 16973 events. 10899/16973 cut-off events. For 10241/11031 co-relation queries the response was YES. Maximal size of possible extension queue 2145. Compared 141335 event pairs, 8998 based on Foata normal form. 22/13817 useless extension candidates. Maximal degree in co-relation 41887. Up to 15213 conditions per place. [2020-10-16 03:52:37,733 INFO L132 encePairwiseOnDemand]: 171/174 looper letters, 85 selfloop transitions, 6 changer transitions 0/130 dead transitions. [2020-10-16 03:52:37,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 130 transitions, 1110 flow [2020-10-16 03:52:37,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:52:37,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:52:37,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 421 transitions. [2020-10-16 03:52:37,734 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6048850574712644 [2020-10-16 03:52:37,735 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 421 transitions. [2020-10-16 03:52:37,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 421 transitions. [2020-10-16 03:52:37,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:52:37,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 421 transitions. [2020-10-16 03:52:37,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:52:37,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:52:37,738 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:52:37,739 INFO L185 Difference]: Start difference. First operand has 76 places, 131 transitions, 932 flow. Second operand 4 states and 421 transitions. [2020-10-16 03:52:37,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 130 transitions, 1110 flow [2020-10-16 03:52:37,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 130 transitions, 1109 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:52:37,754 INFO L241 Difference]: Finished difference. Result has 77 places, 130 transitions, 939 flow [2020-10-16 03:52:37,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=939, PETRI_PLACES=77, PETRI_TRANSITIONS=130} [2020-10-16 03:52:37,755 INFO L342 CegarLoopForPetriNet]: 54 programPoint places, 23 predicate places. [2020-10-16 03:52:37,755 INFO L481 AbstractCegarLoop]: Abstraction has has 77 places, 130 transitions, 939 flow [2020-10-16 03:52:37,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:52:37,755 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:52:37,756 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:52:37,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-16 03:52:37,756 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:52:37,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:52:37,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1113234386, now seen corresponding path program 1 times [2020-10-16 03:52:37,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:52:37,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438374975] [2020-10-16 03:52:37,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:52:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:52:37,818 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-16 03:52:37,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438374975] [2020-10-16 03:52:37,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:52:37,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:52:37,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843756285] [2020-10-16 03:52:37,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:52:37,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:52:37,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:52:37,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:52:37,821 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2020-10-16 03:52:37,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 130 transitions, 939 flow. Second operand 5 states. [2020-10-16 03:52:37,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:52:37,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2020-10-16 03:52:37,821 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:52:39,817 INFO L129 PetriNetUnfolder]: 13336/21404 cut-off events. [2020-10-16 03:52:39,817 INFO L130 PetriNetUnfolder]: For 7048/7359 co-relation queries the response was YES. [2020-10-16 03:52:40,003 INFO L80 FinitePrefix]: Finished finitePrefix Result has 49301 conditions, 21404 events. 13336/21404 cut-off events. For 7048/7359 co-relation queries the response was YES. Maximal size of possible extension queue 2583. Compared 188158 event pairs, 12232 based on Foata normal form. 38/18180 useless extension candidates. Maximal degree in co-relation 49268. Up to 19172 conditions per place. [2020-10-16 03:52:40,125 INFO L132 encePairwiseOnDemand]: 164/174 looper letters, 59 selfloop transitions, 97 changer transitions 0/197 dead transitions. [2020-10-16 03:52:40,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 197 transitions, 1786 flow [2020-10-16 03:52:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:52:40,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:52:40,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 545 transitions. [2020-10-16 03:52:40,127 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6264367816091954 [2020-10-16 03:52:40,127 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 545 transitions. [2020-10-16 03:52:40,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 545 transitions. [2020-10-16 03:52:40,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:52:40,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 545 transitions. [2020-10-16 03:52:40,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:52:40,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:52:40,129 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:52:40,129 INFO L185 Difference]: Start difference. First operand has 77 places, 130 transitions, 939 flow. Second operand 5 states and 545 transitions. [2020-10-16 03:52:40,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 197 transitions, 1786 flow [2020-10-16 03:52:40,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 197 transitions, 1782 flow, removed 1 selfloop flow, removed 1 redundant places. [2020-10-16 03:52:40,150 INFO L241 Difference]: Finished difference. Result has 82 places, 189 transitions, 1795 flow [2020-10-16 03:52:40,150 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1795, PETRI_PLACES=82, PETRI_TRANSITIONS=189} [2020-10-16 03:52:40,150 INFO L342 CegarLoopForPetriNet]: 54 programPoint places, 28 predicate places. [2020-10-16 03:52:40,150 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 189 transitions, 1795 flow [2020-10-16 03:52:40,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:52:40,151 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:52:40,151 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:52:40,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-16 03:52:40,151 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:52:40,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:52:40,151 INFO L82 PathProgramCache]: Analyzing trace with hash 371361058, now seen corresponding path program 1 times [2020-10-16 03:52:40,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:52:40,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446444366] [2020-10-16 03:52:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:52:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:52:40,204 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-16 03:52:40,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446444366] [2020-10-16 03:52:40,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:52:40,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:52:40,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188789634] [2020-10-16 03:52:40,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:52:40,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:52:40,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:52:40,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:52:40,206 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2020-10-16 03:52:40,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 189 transitions, 1795 flow. Second operand 4 states. [2020-10-16 03:52:40,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:52:40,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2020-10-16 03:52:40,207 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:52:42,135 INFO L129 PetriNetUnfolder]: 13739/21849 cut-off events. [2020-10-16 03:52:42,135 INFO L130 PetriNetUnfolder]: For 9504/9971 co-relation queries the response was YES. [2020-10-16 03:52:42,329 INFO L80 FinitePrefix]: Finished finitePrefix Result has 51514 conditions, 21849 events. 13739/21849 cut-off events. For 9504/9971 co-relation queries the response was YES. Maximal size of possible extension queue 2639. Compared 190778 event pairs, 12546 based on Foata normal form. 30/18643 useless extension candidates. Maximal degree in co-relation 51478. Up to 19820 conditions per place. [2020-10-16 03:52:42,455 INFO L132 encePairwiseOnDemand]: 171/174 looper letters, 137 selfloop transitions, 10 changer transitions 0/188 dead transitions. [2020-10-16 03:52:42,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 188 transitions, 2085 flow [2020-10-16 03:52:42,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:52:42,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:52:42,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 420 transitions. [2020-10-16 03:52:42,458 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.603448275862069 [2020-10-16 03:52:42,458 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 420 transitions. [2020-10-16 03:52:42,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 420 transitions. [2020-10-16 03:52:42,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:52:42,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 420 transitions. [2020-10-16 03:52:42,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:52:42,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:52:42,460 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:52:42,460 INFO L185 Difference]: Start difference. First operand has 82 places, 189 transitions, 1795 flow. Second operand 4 states and 420 transitions. [2020-10-16 03:52:42,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 188 transitions, 2085 flow [2020-10-16 03:52:42,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 188 transitions, 2027 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:52:42,477 INFO L241 Difference]: Finished difference. Result has 83 places, 188 transitions, 1753 flow [2020-10-16 03:52:42,477 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=1733, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1753, PETRI_PLACES=83, PETRI_TRANSITIONS=188} [2020-10-16 03:52:42,478 INFO L342 CegarLoopForPetriNet]: 54 programPoint places, 29 predicate places. [2020-10-16 03:52:42,478 INFO L481 AbstractCegarLoop]: Abstraction has has 83 places, 188 transitions, 1753 flow [2020-10-16 03:52:42,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:52:42,478 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:52:42,478 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:52:42,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-16 03:52:42,478 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:52:42,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:52:42,479 INFO L82 PathProgramCache]: Analyzing trace with hash 745940009, now seen corresponding path program 1 times [2020-10-16 03:52:42,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:52:42,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225085180] [2020-10-16 03:52:42,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:52:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:52:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-16 03:52:42,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225085180] [2020-10-16 03:52:42,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:52:42,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:52:42,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963795244] [2020-10-16 03:52:42,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:52:42,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:52:42,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:52:42,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:52:42,545 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 174 [2020-10-16 03:52:42,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 188 transitions, 1753 flow. Second operand 5 states. [2020-10-16 03:52:42,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:52:42,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 174 [2020-10-16 03:52:42,546 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:52:45,433 INFO L129 PetriNetUnfolder]: 18401/29520 cut-off events. [2020-10-16 03:52:45,433 INFO L130 PetriNetUnfolder]: For 14007/14794 co-relation queries the response was YES. [2020-10-16 03:52:45,724 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69147 conditions, 29520 events. 18401/29520 cut-off events. For 14007/14794 co-relation queries the response was YES. Maximal size of possible extension queue 3622. Compared 272567 event pairs, 16984 based on Foata normal form. 61/25345 useless extension candidates. Maximal degree in co-relation 69111. Up to 26412 conditions per place. [2020-10-16 03:52:46,496 INFO L132 encePairwiseOnDemand]: 164/174 looper letters, 86 selfloop transitions, 165 changer transitions 0/294 dead transitions. [2020-10-16 03:52:46,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 294 transitions, 3363 flow [2020-10-16 03:52:46,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:52:46,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:52:46,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 543 transitions. [2020-10-16 03:52:46,498 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6241379310344828 [2020-10-16 03:52:46,498 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 543 transitions. [2020-10-16 03:52:46,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 543 transitions. [2020-10-16 03:52:46,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:52:46,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 543 transitions. [2020-10-16 03:52:46,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:52:46,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:52:46,500 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:52:46,500 INFO L185 Difference]: Start difference. First operand has 83 places, 188 transitions, 1753 flow. Second operand 5 states and 543 transitions. [2020-10-16 03:52:46,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 294 transitions, 3363 flow [2020-10-16 03:52:46,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 294 transitions, 3359 flow, removed 1 selfloop flow, removed 1 redundant places. [2020-10-16 03:52:46,527 INFO L241 Difference]: Finished difference. Result has 88 places, 287 transitions, 3425 flow [2020-10-16 03:52:46,527 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=1750, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=3425, PETRI_PLACES=88, PETRI_TRANSITIONS=287} [2020-10-16 03:52:46,527 INFO L342 CegarLoopForPetriNet]: 54 programPoint places, 34 predicate places. [2020-10-16 03:52:46,527 INFO L481 AbstractCegarLoop]: Abstraction has has 88 places, 287 transitions, 3425 flow [2020-10-16 03:52:46,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:52:46,528 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:52:46,528 INFO L255 CegarLoopForPetriNet]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:52:46,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-16 03:52:46,528 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:52:46,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:52:46,529 INFO L82 PathProgramCache]: Analyzing trace with hash -603092677, now seen corresponding path program 1 times [2020-10-16 03:52:46,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:52:46,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077451029] [2020-10-16 03:52:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:52:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:52:46,537 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:52:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 03:52:46,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 03:52:46,547 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 03:52:46,547 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 03:52:46,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-16 03:52:46,548 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 03:52:46,548 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-16 03:52:46,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,559 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,560 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,575 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,575 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,575 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,577 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,577 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,577 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,577 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,577 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,579 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,579 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,579 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,580 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:52:46,583 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-16 03:52:46,583 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:52:46,584 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:52:46,584 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:52:46,584 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:52:46,584 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:52:46,584 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:52:46,584 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:52:46,584 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:52:46,586 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 116 places, 116 transitions, 309 flow [2020-10-16 03:52:46,597 INFO L129 PetriNetUnfolder]: 22/178 cut-off events. [2020-10-16 03:52:46,597 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-16 03:52:46,598 INFO L80 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 178 events. 22/178 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 560 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 188. Up to 16 conditions per place. [2020-10-16 03:52:46,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 116 transitions, 309 flow [2020-10-16 03:52:46,599 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 116 transitions, 309 flow [2020-10-16 03:52:46,600 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:52:46,600 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 116 transitions, 309 flow [2020-10-16 03:52:46,600 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 116 transitions, 309 flow [2020-10-16 03:52:46,600 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 116 places, 116 transitions, 309 flow [2020-10-16 03:52:46,613 INFO L129 PetriNetUnfolder]: 22/178 cut-off events. [2020-10-16 03:52:46,613 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-16 03:52:46,615 INFO L80 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 178 events. 22/178 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 536 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 188. Up to 16 conditions per place. [2020-10-16 03:52:46,625 INFO L117 LiptonReduction]: Number of co-enabled transitions 9464 [2020-10-16 03:52:48,721 INFO L132 LiptonReduction]: Checked pairs total: 23761 [2020-10-16 03:52:48,721 INFO L134 LiptonReduction]: Total number of compositions: 81 [2020-10-16 03:52:48,721 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2121 [2020-10-16 03:52:48,722 INFO L129 PetriNetUnfolder]: 2/16 cut-off events. [2020-10-16 03:52:48,722 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 03:52:48,723 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:52:48,723 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:52:48,723 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:52:48,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:52:48,723 INFO L82 PathProgramCache]: Analyzing trace with hash -552103113, now seen corresponding path program 1 times [2020-10-16 03:52:48,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:52:48,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955367374] [2020-10-16 03:52:48,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:52:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:52:48,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:52:48,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955367374] [2020-10-16 03:52:48,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:52:48,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:52:48,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198566599] [2020-10-16 03:52:48,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:52:48,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:52:48,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:52:48,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:52:48,772 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 197 [2020-10-16 03:52:48,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 193 flow. Second operand 5 states. [2020-10-16 03:52:48,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:52:48,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 197 [2020-10-16 03:52:48,772 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:53:01,196 INFO L129 PetriNetUnfolder]: 122942/143492 cut-off events. [2020-10-16 03:53:01,196 INFO L130 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2020-10-16 03:53:02,215 INFO L80 FinitePrefix]: Finished finitePrefix Result has 286977 conditions, 143492 events. 122942/143492 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 5916. Compared 667717 event pairs, 71709 based on Foata normal form. 20515/128829 useless extension candidates. Maximal degree in co-relation 286902. Up to 143413 conditions per place. [2020-10-16 03:53:03,037 INFO L132 encePairwiseOnDemand]: 181/197 looper letters, 35 selfloop transitions, 23 changer transitions 0/87 dead transitions. [2020-10-16 03:53:03,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 87 transitions, 367 flow [2020-10-16 03:53:03,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:53:03,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:53:03,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 646 transitions. [2020-10-16 03:53:03,039 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6558375634517767 [2020-10-16 03:53:03,039 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 646 transitions. [2020-10-16 03:53:03,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 646 transitions. [2020-10-16 03:53:03,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:53:03,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 646 transitions. [2020-10-16 03:53:03,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:53:03,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:53:03,041 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:53:03,041 INFO L185 Difference]: Start difference. First operand has 62 places, 58 transitions, 193 flow. Second operand 5 states and 646 transitions. [2020-10-16 03:53:03,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 87 transitions, 367 flow [2020-10-16 03:53:03,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 87 transitions, 325 flow, removed 21 selfloop flow, removed 0 redundant places. [2020-10-16 03:53:03,043 INFO L241 Difference]: Finished difference. Result has 67 places, 75 transitions, 274 flow [2020-10-16 03:53:03,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=274, PETRI_PLACES=67, PETRI_TRANSITIONS=75} [2020-10-16 03:53:03,043 INFO L342 CegarLoopForPetriNet]: 62 programPoint places, 5 predicate places. [2020-10-16 03:53:03,044 INFO L481 AbstractCegarLoop]: Abstraction has has 67 places, 75 transitions, 274 flow [2020-10-16 03:53:03,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:53:03,044 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:53:03,044 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:53:03,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-16 03:53:03,044 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:53:03,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:53:03,044 INFO L82 PathProgramCache]: Analyzing trace with hash 2004854451, now seen corresponding path program 1 times [2020-10-16 03:53:03,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:53:03,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831279406] [2020-10-16 03:53:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:53:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:53:03,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:53:03,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831279406] [2020-10-16 03:53:03,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:53:03,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:53:03,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701506606] [2020-10-16 03:53:03,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:53:03,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:53:03,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:53:03,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:53:03,098 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 197 [2020-10-16 03:53:03,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 75 transitions, 274 flow. Second operand 4 states. [2020-10-16 03:53:03,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:53:03,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 197 [2020-10-16 03:53:03,099 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:53:35,496 INFO L129 PetriNetUnfolder]: 196591/229411 cut-off events. [2020-10-16 03:53:35,497 INFO L130 PetriNetUnfolder]: For 85780/123575 co-relation queries the response was YES. [2020-10-16 03:53:36,683 INFO L80 FinitePrefix]: Finished finitePrefix Result has 589981 conditions, 229411 events. 196591/229411 cut-off events. For 85780/123575 co-relation queries the response was YES. Maximal size of possible extension queue 7533. Compared 1082888 event pairs, 66333 based on Foata normal form. 34/175764 useless extension candidates. Maximal degree in co-relation 589955. Up to 167918 conditions per place. [2020-10-16 03:53:38,072 INFO L132 encePairwiseOnDemand]: 188/197 looper letters, 68 selfloop transitions, 17 changer transitions 0/114 dead transitions. [2020-10-16 03:53:38,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 114 transitions, 552 flow [2020-10-16 03:53:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:53:38,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:53:38,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 524 transitions. [2020-10-16 03:53:38,073 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6649746192893401 [2020-10-16 03:53:38,073 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 524 transitions. [2020-10-16 03:53:38,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 524 transitions. [2020-10-16 03:53:38,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:53:38,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 524 transitions. [2020-10-16 03:53:38,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:53:38,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:53:38,075 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:53:38,075 INFO L185 Difference]: Start difference. First operand has 67 places, 75 transitions, 274 flow. Second operand 4 states and 524 transitions. [2020-10-16 03:53:38,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 114 transitions, 552 flow [2020-10-16 03:53:38,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 114 transitions, 552 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 03:53:38,079 INFO L241 Difference]: Finished difference. Result has 71 places, 90 transitions, 399 flow [2020-10-16 03:53:38,079 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=399, PETRI_PLACES=71, PETRI_TRANSITIONS=90} [2020-10-16 03:53:38,079 INFO L342 CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places. [2020-10-16 03:53:38,079 INFO L481 AbstractCegarLoop]: Abstraction has has 71 places, 90 transitions, 399 flow [2020-10-16 03:53:38,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:53:38,080 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:53:38,080 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:53:38,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-16 03:53:38,080 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:53:38,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:53:38,080 INFO L82 PathProgramCache]: Analyzing trace with hash -586096431, now seen corresponding path program 1 times [2020-10-16 03:53:38,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:53:38,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167749954] [2020-10-16 03:53:38,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:53:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:53:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:53:38,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167749954] [2020-10-16 03:53:38,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:53:38,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:53:38,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158488568] [2020-10-16 03:53:38,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:53:38,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:53:38,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:53:38,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:53:38,123 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 197 [2020-10-16 03:53:38,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 90 transitions, 399 flow. Second operand 5 states. [2020-10-16 03:53:38,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:53:38,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 197 [2020-10-16 03:53:38,124 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:54:21,407 INFO L129 PetriNetUnfolder]: 245750/286853 cut-off events. [2020-10-16 03:54:21,408 INFO L130 PetriNetUnfolder]: For 470010/636296 co-relation queries the response was YES. [2020-10-16 03:54:23,141 INFO L80 FinitePrefix]: Finished finitePrefix Result has 933096 conditions, 286853 events. 245750/286853 cut-off events. For 470010/636296 co-relation queries the response was YES. Maximal size of possible extension queue 9332. Compared 1346989 event pairs, 123935 based on Foata normal form. 63/226907 useless extension candidates. Maximal degree in co-relation 933036. Up to 286680 conditions per place. [2020-10-16 03:54:25,176 INFO L132 encePairwiseOnDemand]: 186/197 looper letters, 58 selfloop transitions, 48 changer transitions 0/136 dead transitions. [2020-10-16 03:54:25,176 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 136 transitions, 830 flow [2020-10-16 03:54:25,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:54:25,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:54:25,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 634 transitions. [2020-10-16 03:54:25,177 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6436548223350254 [2020-10-16 03:54:25,177 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 634 transitions. [2020-10-16 03:54:25,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 634 transitions. [2020-10-16 03:54:25,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:54:25,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 634 transitions. [2020-10-16 03:54:25,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:54:25,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:54:25,179 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:54:25,179 INFO L185 Difference]: Start difference. First operand has 71 places, 90 transitions, 399 flow. Second operand 5 states and 634 transitions. [2020-10-16 03:54:25,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 136 transitions, 830 flow [2020-10-16 03:54:29,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 136 transitions, 786 flow, removed 22 selfloop flow, removed 0 redundant places. [2020-10-16 03:54:29,856 INFO L241 Difference]: Finished difference. Result has 77 places, 124 transitions, 732 flow [2020-10-16 03:54:29,856 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=732, PETRI_PLACES=77, PETRI_TRANSITIONS=124} [2020-10-16 03:54:29,857 INFO L342 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2020-10-16 03:54:29,857 INFO L481 AbstractCegarLoop]: Abstraction has has 77 places, 124 transitions, 732 flow [2020-10-16 03:54:29,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 03:54:29,857 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:54:29,857 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:54:29,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-16 03:54:29,857 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:54:29,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:54:29,857 INFO L82 PathProgramCache]: Analyzing trace with hash -597977640, now seen corresponding path program 1 times [2020-10-16 03:54:29,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:54:29,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006801094] [2020-10-16 03:54:29,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:54:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:54:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 03:54:29,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006801094] [2020-10-16 03:54:29,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:54:29,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:54:29,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222437029] [2020-10-16 03:54:29,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 03:54:29,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:54:29,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 03:54:29,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 03:54:29,917 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 197 [2020-10-16 03:54:29,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 124 transitions, 732 flow. Second operand 4 states. [2020-10-16 03:54:29,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:54:29,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 197 [2020-10-16 03:54:29,918 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:56:01,846 INFO L129 PetriNetUnfolder]: 386770/451399 cut-off events. [2020-10-16 03:56:01,846 INFO L130 PetriNetUnfolder]: For 854158/1500207 co-relation queries the response was YES. [2020-10-16 03:56:06,371 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1598661 conditions, 451399 events. 386770/451399 cut-off events. For 854158/1500207 co-relation queries the response was YES. Maximal size of possible extension queue 12119. Compared 2163170 event pairs, 115381 based on Foata normal form. 77/361943 useless extension candidates. Maximal degree in co-relation 1598596. Up to 335013 conditions per place. [2020-10-16 03:56:09,733 INFO L132 encePairwiseOnDemand]: 188/197 looper letters, 118 selfloop transitions, 52 changer transitions 0/200 dead transitions. [2020-10-16 03:56:09,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 200 transitions, 1479 flow [2020-10-16 03:56:09,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 03:56:09,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 03:56:09,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 524 transitions. [2020-10-16 03:56:09,734 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6649746192893401 [2020-10-16 03:56:09,735 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 524 transitions. [2020-10-16 03:56:09,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 524 transitions. [2020-10-16 03:56:09,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:56:09,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 524 transitions. [2020-10-16 03:56:09,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 03:56:09,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 03:56:09,736 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 03:56:09,736 INFO L185 Difference]: Start difference. First operand has 77 places, 124 transitions, 732 flow. Second operand 4 states and 524 transitions. [2020-10-16 03:56:09,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 200 transitions, 1479 flow [2020-10-16 03:56:47,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 200 transitions, 1445 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:56:47,786 INFO L241 Difference]: Finished difference. Result has 81 places, 174 transitions, 1274 flow [2020-10-16 03:56:47,786 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1274, PETRI_PLACES=81, PETRI_TRANSITIONS=174} [2020-10-16 03:56:47,786 INFO L342 CegarLoopForPetriNet]: 62 programPoint places, 19 predicate places. [2020-10-16 03:56:47,786 INFO L481 AbstractCegarLoop]: Abstraction has has 81 places, 174 transitions, 1274 flow [2020-10-16 03:56:47,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 03:56:47,786 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:56:47,787 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:56:47,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-16 03:56:47,787 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:56:47,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:56:47,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1152020037, now seen corresponding path program 1 times [2020-10-16 03:56:47,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:56:47,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128359900] [2020-10-16 03:56:47,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:56:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:56:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 03:56:47,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128359900] [2020-10-16 03:56:47,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:56:47,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:56:47,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139575665] [2020-10-16 03:56:47,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 03:56:47,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:56:47,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 03:56:47,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 03:56:47,827 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 197 [2020-10-16 03:56:47,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 174 transitions, 1274 flow. Second operand 5 states. [2020-10-16 03:56:47,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:56:47,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 197 [2020-10-16 03:56:47,828 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:59:14,314 INFO L129 PetriNetUnfolder]: 483718/564846 cut-off events. [2020-10-16 03:59:14,315 INFO L130 PetriNetUnfolder]: For 2514404/3533300 co-relation queries the response was YES. [2020-10-16 03:59:18,589 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2439333 conditions, 564846 events. 483718/564846 cut-off events. For 2514404/3533300 co-relation queries the response was YES. Maximal size of possible extension queue 15203. Compared 2691023 event pairs, 214317 based on Foata normal form. 166/466140 useless extension candidates. Maximal degree in co-relation 2439300. Up to 564315 conditions per place. [2020-10-16 03:59:40,392 INFO L132 encePairwiseOnDemand]: 186/197 looper letters, 129 selfloop transitions, 103 changer transitions 0/263 dead transitions. [2020-10-16 03:59:40,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 263 transitions, 2441 flow [2020-10-16 03:59:40,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 03:59:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 03:59:40,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 633 transitions. [2020-10-16 03:59:40,394 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6426395939086295 [2020-10-16 03:59:40,394 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 633 transitions. [2020-10-16 03:59:40,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 633 transitions. [2020-10-16 03:59:40,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:59:40,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 633 transitions. [2020-10-16 03:59:40,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 03:59:40,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 03:59:40,397 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 03:59:40,397 INFO L185 Difference]: Start difference. First operand has 81 places, 174 transitions, 1274 flow. Second operand 5 states and 633 transitions. [2020-10-16 03:59:40,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 263 transitions, 2441 flow [2020-10-16 04:00:44,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 263 transitions, 2327 flow, removed 57 selfloop flow, removed 0 redundant places. [2020-10-16 04:00:44,185 INFO L241 Difference]: Finished difference. Result has 87 places, 252 transitions, 2253 flow [2020-10-16 04:00:44,185 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1188, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2253, PETRI_PLACES=87, PETRI_TRANSITIONS=252} [2020-10-16 04:00:44,186 INFO L342 CegarLoopForPetriNet]: 62 programPoint places, 25 predicate places. [2020-10-16 04:00:44,186 INFO L481 AbstractCegarLoop]: Abstraction has has 87 places, 252 transitions, 2253 flow [2020-10-16 04:00:44,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 04:00:44,186 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:00:44,186 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:00:44,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-16 04:00:44,186 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:00:44,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:00:44,187 INFO L82 PathProgramCache]: Analyzing trace with hash -535184780, now seen corresponding path program 1 times [2020-10-16 04:00:44,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:00:44,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253055377] [2020-10-16 04:00:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:00:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:00:44,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 04:00:44,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253055377] [2020-10-16 04:00:44,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:00:44,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 04:00:44,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501364873] [2020-10-16 04:00:44,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 04:00:44,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:00:44,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 04:00:44,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 04:00:44,238 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 197 [2020-10-16 04:00:44,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 252 transitions, 2253 flow. Second operand 5 states. [2020-10-16 04:00:44,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:00:44,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 197 [2020-10-16 04:00:44,239 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:00:56,013 INFO L129 PetriNetUnfolder]: 67716/89972 cut-off events. [2020-10-16 04:00:56,013 INFO L130 PetriNetUnfolder]: For 19505/19510 co-relation queries the response was YES. [2020-10-16 04:00:56,780 INFO L80 FinitePrefix]: Finished finitePrefix Result has 204563 conditions, 89972 events. 67716/89972 cut-off events. For 19505/19510 co-relation queries the response was YES. Maximal size of possible extension queue 6208. Compared 611538 event pairs, 59449 based on Foata normal form. 2/88721 useless extension candidates. Maximal degree in co-relation 204526. Up to 89314 conditions per place. [2020-10-16 04:00:57,245 INFO L132 encePairwiseOnDemand]: 175/197 looper letters, 24 selfloop transitions, 18 changer transitions 0/155 dead transitions. [2020-10-16 04:00:57,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 155 transitions, 1272 flow [2020-10-16 04:00:57,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 04:00:57,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 04:00:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 665 transitions. [2020-10-16 04:00:57,246 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6751269035532995 [2020-10-16 04:00:57,246 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 665 transitions. [2020-10-16 04:00:57,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 665 transitions. [2020-10-16 04:00:57,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:00:57,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 665 transitions. [2020-10-16 04:00:57,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 04:00:57,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 04:00:57,248 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 04:00:57,248 INFO L185 Difference]: Start difference. First operand has 87 places, 252 transitions, 2253 flow. Second operand 5 states and 665 transitions. [2020-10-16 04:00:57,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 155 transitions, 1272 flow [2020-10-16 04:00:57,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 155 transitions, 1079 flow, removed 44 selfloop flow, removed 7 redundant places. [2020-10-16 04:00:57,272 INFO L241 Difference]: Finished difference. Result has 84 places, 155 transitions, 1106 flow [2020-10-16 04:00:57,273 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1106, PETRI_PLACES=84, PETRI_TRANSITIONS=155} [2020-10-16 04:00:57,273 INFO L342 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2020-10-16 04:00:57,273 INFO L481 AbstractCegarLoop]: Abstraction has has 84 places, 155 transitions, 1106 flow [2020-10-16 04:00:57,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 04:00:57,273 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:00:57,273 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:00:57,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-16 04:00:57,273 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:00:57,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:00:57,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1010306811, now seen corresponding path program 1 times [2020-10-16 04:00:57,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:00:57,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25717880] [2020-10-16 04:00:57,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:00:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:00:57,328 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 04:00:57,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25717880] [2020-10-16 04:00:57,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:00:57,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 04:00:57,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875510252] [2020-10-16 04:00:57,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 04:00:57,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:00:57,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 04:00:57,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 04:00:57,331 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 197 [2020-10-16 04:00:57,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 155 transitions, 1106 flow. Second operand 4 states. [2020-10-16 04:00:57,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:00:57,332 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 197 [2020-10-16 04:00:57,332 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:01:05,781 INFO L129 PetriNetUnfolder]: 45094/65547 cut-off events. [2020-10-16 04:01:05,781 INFO L130 PetriNetUnfolder]: For 33791/36339 co-relation queries the response was YES. [2020-10-16 04:01:06,323 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156758 conditions, 65547 events. 45094/65547 cut-off events. For 33791/36339 co-relation queries the response was YES. Maximal size of possible extension queue 7228. Compared 570380 event pairs, 38699 based on Foata normal form. 62/53685 useless extension candidates. Maximal degree in co-relation 156724. Up to 60792 conditions per place. [2020-10-16 04:01:06,698 INFO L132 encePairwiseOnDemand]: 194/197 looper letters, 103 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2020-10-16 04:01:06,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 154 transitions, 1320 flow [2020-10-16 04:01:06,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 04:01:06,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 04:01:06,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 484 transitions. [2020-10-16 04:01:06,700 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6142131979695431 [2020-10-16 04:01:06,700 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 484 transitions. [2020-10-16 04:01:06,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 484 transitions. [2020-10-16 04:01:06,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:01:06,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 484 transitions. [2020-10-16 04:01:06,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 04:01:06,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 04:01:06,701 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 04:01:06,701 INFO L185 Difference]: Start difference. First operand has 84 places, 155 transitions, 1106 flow. Second operand 4 states and 484 transitions. [2020-10-16 04:01:06,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 154 transitions, 1320 flow [2020-10-16 04:01:06,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 154 transitions, 1319 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 04:01:06,770 INFO L241 Difference]: Finished difference. Result has 85 places, 154 transitions, 1113 flow [2020-10-16 04:01:06,770 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1101, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1113, PETRI_PLACES=85, PETRI_TRANSITIONS=154} [2020-10-16 04:01:06,770 INFO L342 CegarLoopForPetriNet]: 62 programPoint places, 23 predicate places. [2020-10-16 04:01:06,770 INFO L481 AbstractCegarLoop]: Abstraction has has 85 places, 154 transitions, 1113 flow [2020-10-16 04:01:06,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 04:01:06,770 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:01:06,771 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:01:06,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-16 04:01:06,771 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:01:06,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:01:06,771 INFO L82 PathProgramCache]: Analyzing trace with hash -354280049, now seen corresponding path program 1 times [2020-10-16 04:01:06,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:01:06,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387338612] [2020-10-16 04:01:06,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:01:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:01:06,816 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-16 04:01:06,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387338612] [2020-10-16 04:01:06,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:01:06,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 04:01:06,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182677830] [2020-10-16 04:01:06,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 04:01:06,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:01:06,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 04:01:06,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 04:01:06,819 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 197 [2020-10-16 04:01:06,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 154 transitions, 1113 flow. Second operand 5 states. [2020-10-16 04:01:06,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:01:06,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 197 [2020-10-16 04:01:06,819 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:01:19,916 INFO L129 PetriNetUnfolder]: 57901/84975 cut-off events. [2020-10-16 04:01:19,916 INFO L130 PetriNetUnfolder]: For 18839/19686 co-relation queries the response was YES. [2020-10-16 04:01:20,586 INFO L80 FinitePrefix]: Finished finitePrefix Result has 188211 conditions, 84975 events. 57901/84975 cut-off events. For 18839/19686 co-relation queries the response was YES. Maximal size of possible extension queue 10037. Compared 771500 event pairs, 54518 based on Foata normal form. 117/72285 useless extension candidates. Maximal degree in co-relation 188177. Up to 79866 conditions per place. [2020-10-16 04:01:21,042 INFO L132 encePairwiseOnDemand]: 186/197 looper letters, 71 selfloop transitions, 121 changer transitions 0/239 dead transitions. [2020-10-16 04:01:21,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 239 transitions, 2176 flow [2020-10-16 04:01:21,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 04:01:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 04:01:21,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 628 transitions. [2020-10-16 04:01:21,043 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6375634517766497 [2020-10-16 04:01:21,043 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 628 transitions. [2020-10-16 04:01:21,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 628 transitions. [2020-10-16 04:01:21,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:01:21,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 628 transitions. [2020-10-16 04:01:21,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 04:01:21,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 04:01:21,045 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 04:01:21,045 INFO L185 Difference]: Start difference. First operand has 85 places, 154 transitions, 1113 flow. Second operand 5 states and 628 transitions. [2020-10-16 04:01:21,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 239 transitions, 2176 flow [2020-10-16 04:01:21,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 239 transitions, 2172 flow, removed 1 selfloop flow, removed 1 redundant places. [2020-10-16 04:01:21,081 INFO L241 Difference]: Finished difference. Result has 90 places, 229 transitions, 2197 flow [2020-10-16 04:01:21,081 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2197, PETRI_PLACES=90, PETRI_TRANSITIONS=229} [2020-10-16 04:01:21,081 INFO L342 CegarLoopForPetriNet]: 62 programPoint places, 28 predicate places. [2020-10-16 04:01:21,081 INFO L481 AbstractCegarLoop]: Abstraction has has 90 places, 229 transitions, 2197 flow [2020-10-16 04:01:21,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 04:01:21,081 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:01:21,081 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:01:21,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-16 04:01:21,081 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:01:21,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:01:21,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1160664995, now seen corresponding path program 1 times [2020-10-16 04:01:21,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:01:21,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555120130] [2020-10-16 04:01:21,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:01:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:01:21,128 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-16 04:01:21,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555120130] [2020-10-16 04:01:21,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:01:21,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 04:01:21,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51429816] [2020-10-16 04:01:21,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 04:01:21,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:01:21,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 04:01:21,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 04:01:21,131 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 197 [2020-10-16 04:01:21,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 229 transitions, 2197 flow. Second operand 4 states. [2020-10-16 04:01:21,131 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:01:21,132 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 197 [2020-10-16 04:01:21,132 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:01:34,915 INFO L129 PetriNetUnfolder]: 62003/90703 cut-off events. [2020-10-16 04:01:34,915 INFO L130 PetriNetUnfolder]: For 25302/26589 co-relation queries the response was YES. [2020-10-16 04:01:35,650 INFO L80 FinitePrefix]: Finished finitePrefix Result has 203662 conditions, 90703 events. 62003/90703 cut-off events. For 25302/26589 co-relation queries the response was YES. Maximal size of possible extension queue 10239. Compared 815530 event pairs, 57494 based on Foata normal form. 75/78024 useless extension candidates. Maximal degree in co-relation 203625. Up to 85835 conditions per place. [2020-10-16 04:01:36,159 INFO L132 encePairwiseOnDemand]: 194/197 looper letters, 171 selfloop transitions, 10 changer transitions 0/228 dead transitions. [2020-10-16 04:01:36,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 228 transitions, 2555 flow [2020-10-16 04:01:36,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 04:01:36,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 04:01:36,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 483 transitions. [2020-10-16 04:01:36,161 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6129441624365483 [2020-10-16 04:01:36,161 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 483 transitions. [2020-10-16 04:01:36,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 483 transitions. [2020-10-16 04:01:36,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:01:36,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 483 transitions. [2020-10-16 04:01:36,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 04:01:36,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 04:01:36,162 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 04:01:36,162 INFO L185 Difference]: Start difference. First operand has 90 places, 229 transitions, 2197 flow. Second operand 4 states and 483 transitions. [2020-10-16 04:01:36,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 228 transitions, 2555 flow [2020-10-16 04:01:36,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 228 transitions, 2481 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 04:01:36,193 INFO L241 Difference]: Finished difference. Result has 91 places, 228 transitions, 2139 flow [2020-10-16 04:01:36,193 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=2119, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2139, PETRI_PLACES=91, PETRI_TRANSITIONS=228} [2020-10-16 04:01:36,194 INFO L342 CegarLoopForPetriNet]: 62 programPoint places, 29 predicate places. [2020-10-16 04:01:36,194 INFO L481 AbstractCegarLoop]: Abstraction has has 91 places, 228 transitions, 2139 flow [2020-10-16 04:01:36,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 04:01:36,194 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:01:36,194 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:01:36,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-16 04:01:36,194 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:01:36,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:01:36,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1224284477, now seen corresponding path program 1 times [2020-10-16 04:01:36,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:01:36,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361982815] [2020-10-16 04:01:36,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:01:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:01:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-16 04:01:36,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361982815] [2020-10-16 04:01:36,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:01:36,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 04:01:36,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780952130] [2020-10-16 04:01:36,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 04:01:36,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:01:36,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 04:01:36,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 04:01:36,242 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 197 [2020-10-16 04:01:36,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 228 transitions, 2139 flow. Second operand 5 states. [2020-10-16 04:01:36,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:01:36,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 197 [2020-10-16 04:01:36,243 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:01:58,340 INFO L129 PetriNetUnfolder]: 81490/120333 cut-off events. [2020-10-16 04:01:58,340 INFO L130 PetriNetUnfolder]: For 34107/35142 co-relation queries the response was YES. [2020-10-16 04:01:59,440 INFO L80 FinitePrefix]: Finished finitePrefix Result has 269545 conditions, 120333 events. 81490/120333 cut-off events. For 34107/35142 co-relation queries the response was YES. Maximal size of possible extension queue 12857. Compared 1121918 event pairs, 77863 based on Foata normal form. 129/105217 useless extension candidates. Maximal degree in co-relation 269508. Up to 113297 conditions per place. [2020-10-16 04:02:00,169 INFO L132 encePairwiseOnDemand]: 186/197 looper letters, 106 selfloop transitions, 213 changer transitions 0/368 dead transitions. [2020-10-16 04:02:00,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 368 transitions, 4241 flow [2020-10-16 04:02:00,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 04:02:00,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 04:02:00,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 626 transitions. [2020-10-16 04:02:00,171 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.6355329949238578 [2020-10-16 04:02:00,171 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 626 transitions. [2020-10-16 04:02:00,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 626 transitions. [2020-10-16 04:02:00,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:02:00,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 626 transitions. [2020-10-16 04:02:00,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 04:02:00,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 04:02:00,173 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 04:02:00,173 INFO L185 Difference]: Start difference. First operand has 91 places, 228 transitions, 2139 flow. Second operand 5 states and 626 transitions. [2020-10-16 04:02:00,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 368 transitions, 4241 flow [2020-10-16 04:02:00,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 368 transitions, 4237 flow, removed 1 selfloop flow, removed 1 redundant places. [2020-10-16 04:02:00,222 INFO L241 Difference]: Finished difference. Result has 96 places, 359 transitions, 4339 flow [2020-10-16 04:02:00,222 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=4339, PETRI_PLACES=96, PETRI_TRANSITIONS=359} [2020-10-16 04:02:00,222 INFO L342 CegarLoopForPetriNet]: 62 programPoint places, 34 predicate places. [2020-10-16 04:02:00,222 INFO L481 AbstractCegarLoop]: Abstraction has has 96 places, 359 transitions, 4339 flow [2020-10-16 04:02:00,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 04:02:00,222 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:02:00,222 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:02:00,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-16 04:02:00,223 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:02:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:02:00,223 INFO L82 PathProgramCache]: Analyzing trace with hash 283667012, now seen corresponding path program 1 times [2020-10-16 04:02:00,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:02:00,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810085879] [2020-10-16 04:02:00,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:02:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:02:00,273 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-16 04:02:00,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810085879] [2020-10-16 04:02:00,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:02:00,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 04:02:00,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282340890] [2020-10-16 04:02:00,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 04:02:00,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:02:00,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 04:02:00,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 04:02:00,276 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 197 [2020-10-16 04:02:00,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 359 transitions, 4339 flow. Second operand 4 states. [2020-10-16 04:02:00,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:02:00,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 197 [2020-10-16 04:02:00,276 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2020-10-16 04:02:15,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 04:02:15,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-16 04:02:15,863 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-16 04:02:15,867 WARN L235 ceAbstractionStarter]: Timeout [2020-10-16 04:02:15,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 04:02:15 BasicIcfg [2020-10-16 04:02:15,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 04:02:15,871 INFO L168 Benchmark]: Toolchain (without parser) took 658149.38 ms. Allocated memory was 249.0 MB in the beginning and 5.1 GB in the end (delta: 4.8 GB). Free memory was 204.8 MB in the beginning and 3.0 GB in the end (delta: -2.8 GB). Peak memory consumption was 3.8 GB. Max. memory is 14.2 GB. [2020-10-16 04:02:15,871 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 04:02:15,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.03 ms. Allocated memory was 249.0 MB in the beginning and 302.0 MB in the end (delta: 53.0 MB). Free memory was 204.8 MB in the beginning and 257.9 MB in the end (delta: -53.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 14.2 GB. [2020-10-16 04:02:15,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.44 ms. Allocated memory is still 302.0 MB. Free memory was 257.9 MB in the beginning and 255.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 04:02:15,873 INFO L168 Benchmark]: Boogie Preprocessor took 54.96 ms. Allocated memory is still 302.0 MB. Free memory is still 255.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 04:02:15,874 INFO L168 Benchmark]: RCFGBuilder took 387.53 ms. Allocated memory is still 302.0 MB. Free memory was 255.4 MB in the beginning and 233.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-16 04:02:15,874 INFO L168 Benchmark]: TraceAbstraction took 656961.37 ms. Allocated memory was 302.0 MB in the beginning and 5.1 GB in the end (delta: 4.8 GB). Free memory was 233.6 MB in the beginning and 3.0 GB in the end (delta: -2.7 GB). Peak memory consumption was 3.7 GB. Max. memory is 14.2 GB. [2020-10-16 04:02:15,878 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 249.0 MB. Free memory is still 225.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 674.03 ms. Allocated memory was 249.0 MB in the beginning and 302.0 MB in the end (delta: 53.0 MB). Free memory was 204.8 MB in the beginning and 257.9 MB in the end (delta: -53.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 64.44 ms. Allocated memory is still 302.0 MB. Free memory was 257.9 MB in the beginning and 255.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 54.96 ms. Allocated memory is still 302.0 MB. Free memory is still 255.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 387.53 ms. Allocated memory is still 302.0 MB. Free memory was 255.4 MB in the beginning and 233.6 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 656961.37 ms. Allocated memory was 302.0 MB in the beginning and 5.1 GB in the end (delta: 4.8 GB). Free memory was 233.6 MB in the beginning and 3.0 GB in the end (delta: -2.7 GB). Peak memory consumption was 3.7 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 159 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 32 PlacesBefore, 12 PlacesAfterwards, 32 TransitionsBefore, 10 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 30 TotalNumberOfCompositions, 259 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 590 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 23 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 96 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.6s, 46 PlacesBefore, 22 PlacesAfterwards, 46 TransitionsBefore, 21 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 32 TotalNumberOfCompositions, 1821 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1107 VarBasedMoverChecksPositive, 56 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 39 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 168 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.9s, 60 PlacesBefore, 30 PlacesAfterwards, 60 TransitionsBefore, 27 TransitionsAfterwards, 1872 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 43 TotalNumberOfCompositions, 4048 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1882 VarBasedMoverChecksPositive, 86 VarBasedMoverChecksNegative, 33 SemBasedMoverChecksPositive, 53 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 275 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 74 PlacesBefore, 38 PlacesAfterwards, 74 TransitionsBefore, 35 TransitionsAfterwards, 3224 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 52 TotalNumberOfCompositions, 7163 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2879 VarBasedMoverChecksPositive, 190 VarBasedMoverChecksNegative, 117 SemBasedMoverChecksPositive, 73 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 360 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 88 PlacesBefore, 46 PlacesAfterwards, 88 TransitionsBefore, 44 TransitionsAfterwards, 4940 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 61 TotalNumberOfCompositions, 12187 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4725 VarBasedMoverChecksPositive, 255 VarBasedMoverChecksNegative, 158 SemBasedMoverChecksPositive, 97 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 704 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 102 PlacesBefore, 54 PlacesAfterwards, 102 TransitionsBefore, 53 TransitionsAfterwards, 7020 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 72 TotalNumberOfCompositions, 20409 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5117 VarBasedMoverChecksPositive, 239 VarBasedMoverChecksNegative, 133 SemBasedMoverChecksPositive, 106 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.9s, 549 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.1s, 116 PlacesBefore, 62 PlacesAfterwards, 116 TransitionsBefore, 58 TransitionsAfterwards, 9464 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 4 ChoiceCompositions, 81 TotalNumberOfCompositions, 23761 MoverChecksTotal - TimeoutResultAtElement [Line: 690]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 690). Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (4states, 115/197 universal loopers) in iteration 11,while PetriNetUnfolder was constructing finite prefix that currently has 221972 conditions, 95453 events (65527/95452 cut-off events. For 40994/42279 co-relation queries the response was YES. Maximal size of possible extension queue 13325. Compared 909178 event pairs, 61588 based on Foata normal form. 111/88775 useless extension candidates. Maximal degree in co-relation 221932. Up to 88878 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 7 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 656.6s, OverallIterations: 46, TraceHistogramMax: 7, AutomataDifference: 644.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.2s, HoareTripleCheckerStatistics: 549 SDtfs, 358 SDslu, 34 SDs, 0 SdLazy, 3138 SolverSat, 230 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4339occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 576 NumberOfCodeBlocks, 576 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 454 ConstructedInterpolants, 0 QuantifiedInterpolants, 28834 SizeOfPredicates, 1 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 41 InterpolantComputations, 39 PerfectInterpolantSequences, 256/260 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown