/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/fkp2013-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:57:28,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:57:28,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:57:28,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:57:28,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:57:28,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:57:28,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:57:28,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:57:28,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:57:28,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:57:28,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:57:28,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:57:28,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:57:28,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:57:28,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:57:28,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:57:28,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:57:28,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:57:28,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:57:28,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:57:28,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:57:28,344 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:57:28,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:57:28,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:57:28,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:57:28,351 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:57:28,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:57:28,351 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:57:28,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:57:28,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:57:28,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:57:28,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:57:28,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:57:28,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:57:28,354 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:57:28,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:57:28,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:57:28,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:57:28,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:57:28,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:57:28,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:57:28,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:57:28,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:57:28,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:57:28,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:57:28,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:57:28,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:57:28,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:57:28,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:57:28,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:57:28,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:57:28,359 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:57:28,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:57:28,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:57:28,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:57:28,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:57:28,840 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:57:28,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/fkp2013-1.i [2021-04-29 00:57:28,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6fa3436/ea041e95d43e43a5b1a007f8380de42b/FLAG35ccc3e98 [2021-04-29 00:57:29,688 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:57:29,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013-1.i [2021-04-29 00:57:29,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6fa3436/ea041e95d43e43a5b1a007f8380de42b/FLAG35ccc3e98 [2021-04-29 00:57:29,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6fa3436/ea041e95d43e43a5b1a007f8380de42b [2021-04-29 00:57:29,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:57:30,006 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:57:30,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:57:30,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:57:30,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:57:30,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:57:29" (1/1) ... [2021-04-29 00:57:30,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469b3b20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30, skipping insertion in model container [2021-04-29 00:57:30,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:57:29" (1/1) ... [2021-04-29 00:57:30,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:57:30,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:57:30,454 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013-1.i[30003,30016] [2021-04-29 00:57:30,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:57:30,505 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:57:30,599 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/fkp2013-1.i[30003,30016] [2021-04-29 00:57:30,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:57:30,768 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:57:30,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30 WrapperNode [2021-04-29 00:57:30,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:57:30,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:57:30,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:57:30,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:57:30,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (1/1) ... [2021-04-29 00:57:30,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (1/1) ... [2021-04-29 00:57:30,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:57:30,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:57:30,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:57:30,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:57:30,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (1/1) ... [2021-04-29 00:57:30,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (1/1) ... [2021-04-29 00:57:30,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (1/1) ... [2021-04-29 00:57:30,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (1/1) ... [2021-04-29 00:57:30,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (1/1) ... [2021-04-29 00:57:30,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (1/1) ... [2021-04-29 00:57:30,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (1/1) ... [2021-04-29 00:57:30,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:57:30,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:57:30,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:57:30,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:57:30,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:57:30,963 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-04-29 00:57:30,963 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-04-29 00:57:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-04-29 00:57:30,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-04-29 00:57:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:57:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:57:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:57:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:57:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:57:30,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:57:30,968 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:57:31,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:57:31,481 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-04-29 00:57:31,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:57:31 BoogieIcfgContainer [2021-04-29 00:57:31,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:57:31,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:57:31,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:57:31,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:57:31,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:57:29" (1/3) ... [2021-04-29 00:57:31,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e6f428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:57:31, skipping insertion in model container [2021-04-29 00:57:31,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:57:30" (2/3) ... [2021-04-29 00:57:31,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e6f428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:57:31, skipping insertion in model container [2021-04-29 00:57:31,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:57:31" (3/3) ... [2021-04-29 00:57:31,509 INFO L111 eAbstractionObserver]: Analyzing ICFG fkp2013-1.i [2021-04-29 00:57:31,519 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:57:31,525 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:57:31,526 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:57:31,563 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,563 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,563 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,563 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,564 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,564 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,564 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,564 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,565 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,565 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,565 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,565 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,565 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,566 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,566 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,566 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,567 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,567 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,576 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,576 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,577 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,577 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,577 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:31,587 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:57:31,613 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:57:31,644 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:57:31,645 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:57:31,645 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:57:31,645 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:57:31,645 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:57:31,645 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:57:31,646 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:57:31,646 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:57:31,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 56 transitions, 122 flow [2021-04-29 00:57:31,718 INFO L129 PetriNetUnfolder]: 3/66 cut-off events. [2021-04-29 00:57:31,719 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:57:31,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 66 events. 3/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 104 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2021-04-29 00:57:31,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 56 transitions, 122 flow [2021-04-29 00:57:31,736 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 55 transitions, 118 flow [2021-04-29 00:57:31,738 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:57:31,763 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 55 transitions, 118 flow [2021-04-29 00:57:31,769 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 55 transitions, 118 flow [2021-04-29 00:57:31,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 55 transitions, 118 flow [2021-04-29 00:57:31,801 INFO L129 PetriNetUnfolder]: 3/66 cut-off events. [2021-04-29 00:57:31,802 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:57:31,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 66 events. 3/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2021-04-29 00:57:31,807 INFO L146 LiptonReduction]: Number of co-enabled transitions 742 [2021-04-29 00:57:36,758 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:36,953 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:37,251 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:57:37,431 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:37,634 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:37,807 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:57:37,967 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:57:38,419 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:38,607 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:40,106 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:57:40,300 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:57:40,572 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:57:40,870 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:57:41,115 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:57:41,363 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:57:41,686 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:57:42,028 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:42,142 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:57:42,416 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:42,534 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:57:42,805 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:42,926 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:57:43,200 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:43,318 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:57:43,427 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:57:43,602 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:57:43,924 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:44,045 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:57:44,323 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:44,449 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:57:44,607 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:57:44,822 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:57:45,052 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:57:45,294 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:57:45,525 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:57:45,656 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:57:45,800 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:57:45,957 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:57:45,988 INFO L158 LiptonReduction]: Checked pairs total: 1423 [2021-04-29 00:57:45,988 INFO L160 LiptonReduction]: Total number of compositions: 112 [2021-04-29 00:57:45,992 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14256 [2021-04-29 00:57:46,011 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-04-29 00:57:46,012 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:57:46,012 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:57:46,013 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 00:57:46,013 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-29 00:57:46,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:57:46,021 INFO L82 PathProgramCache]: Analyzing trace with hash 281488, now seen corresponding path program 1 times [2021-04-29 00:57:46,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:57:46,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834240834] [2021-04-29 00:57:46,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:57:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:57:46,354 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-04-29 00:57:46,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:57:46,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:57:46,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834240834] [2021-04-29 00:57:46,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:57:46,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:57:46,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93872577] [2021-04-29 00:57:46,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:57:46,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:57:46,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:57:46,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:57:46,405 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 168 [2021-04-29 00:57:46,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:46,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:57:46,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 168 [2021-04-29 00:57:46,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:57:46,548 INFO L129 PetriNetUnfolder]: 19/134 cut-off events. [2021-04-29 00:57:46,549 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:57:46,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 134 events. 19/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 826 event pairs, 7 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 183. Up to 47 conditions per place. [2021-04-29 00:57:46,552 INFO L132 encePairwiseOnDemand]: 142/168 looper letters, 14 selfloop transitions, 7 changer transitions 26/70 dead transitions. [2021-04-29 00:57:46,553 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 70 transitions, 220 flow [2021-04-29 00:57:46,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:57:46,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:57:46,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2021-04-29 00:57:46,572 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6726190476190477 [2021-04-29 00:57:46,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 339 transitions. [2021-04-29 00:57:46,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 339 transitions. [2021-04-29 00:57:46,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:57:46,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 339 transitions. [2021-04-29 00:57:46,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:46,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:46,594 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:46,597 INFO L185 Difference]: Start difference. First operand has 71 places, 65 transitions, 138 flow. Second operand 3 states and 339 transitions. [2021-04-29 00:57:46,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 70 transitions, 220 flow [2021-04-29 00:57:46,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 70 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:57:46,606 INFO L241 Difference]: Finished difference. Result has 72 places, 40 transitions, 125 flow [2021-04-29 00:57:46,608 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=72, PETRI_TRANSITIONS=40} [2021-04-29 00:57:46,610 INFO L343 CegarLoopForPetriNet]: 71 programPoint places, 1 predicate places. [2021-04-29 00:57:46,610 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:57:46,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 40 transitions, 125 flow [2021-04-29 00:57:46,611 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 40 transitions, 125 flow [2021-04-29 00:57:46,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 40 transitions, 125 flow [2021-04-29 00:57:46,628 INFO L129 PetriNetUnfolder]: 0/70 cut-off events. [2021-04-29 00:57:46,629 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 00:57:46,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 70 events. 0/70 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 478 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2021-04-29 00:57:46,632 INFO L146 LiptonReduction]: Number of co-enabled transitions 766 [2021-04-29 00:57:46,638 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:57:46,638 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:57:46,639 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-04-29 00:57:46,641 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 125 flow [2021-04-29 00:57:46,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:46,642 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:57:46,642 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:57:46,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:57:46,643 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-29 00:57:46,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:57:46,645 INFO L82 PathProgramCache]: Analyzing trace with hash -2090874943, now seen corresponding path program 1 times [2021-04-29 00:57:46,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:57:46,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250836885] [2021-04-29 00:57:46,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:57:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 00:57:46,725 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 00:57:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 00:57:46,775 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 00:57:46,802 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 00:57:46,803 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 00:57:46,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:57:46,805 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 00:57:46,806 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-04-29 00:57:46,815 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,816 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,816 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,816 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,816 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,817 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,817 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,817 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,817 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,817 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,818 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,818 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,818 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,818 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,818 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,818 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,819 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,819 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,819 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,819 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,819 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,820 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,820 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,820 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,820 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,820 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,821 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,821 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,821 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,821 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,821 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,821 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,822 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,822 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,822 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,822 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,823 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,823 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,823 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,824 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,824 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,824 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,824 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,825 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,825 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,825 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,826 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,826 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,827 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,827 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,827 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,827 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,828 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,828 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,828 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,828 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,828 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,828 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,829 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,829 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,829 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,829 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,829 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,829 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,830 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,830 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,830 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,831 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,831 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,831 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,831 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,831 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,831 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,832 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,832 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,832 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,833 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,833 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,833 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,835 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,835 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,836 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,836 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,836 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,837 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,838 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,838 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:46,842 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:57:46,842 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 00:57:46,844 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:57:46,844 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:57:46,844 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:57:46,845 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:57:46,845 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:57:46,845 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:57:46,845 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:57:46,845 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:57:46,848 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 75 transitions, 174 flow [2021-04-29 00:57:46,862 INFO L129 PetriNetUnfolder]: 4/88 cut-off events. [2021-04-29 00:57:46,862 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:57:46,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 88 events. 4/88 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. 0/80 useless extension candidates. Maximal degree in co-relation 97. Up to 6 conditions per place. [2021-04-29 00:57:46,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 75 transitions, 174 flow [2021-04-29 00:57:46,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 62 transitions, 139 flow [2021-04-29 00:57:46,865 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:57:46,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 62 transitions, 139 flow [2021-04-29 00:57:46,865 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 62 transitions, 139 flow [2021-04-29 00:57:46,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 62 transitions, 139 flow [2021-04-29 00:57:46,887 INFO L129 PetriNetUnfolder]: 4/88 cut-off events. [2021-04-29 00:57:46,888 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:57:46,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 88 events. 4/88 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. 0/80 useless extension candidates. Maximal degree in co-relation 76. Up to 6 conditions per place. [2021-04-29 00:57:46,893 INFO L146 LiptonReduction]: Number of co-enabled transitions 1172 [2021-04-29 00:57:51,079 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:51,231 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:51,378 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:51,531 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:51,948 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:52,127 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:57:53,886 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:57:54,073 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:57:54,251 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:57:54,441 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:57:54,670 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:57:54,926 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:57:55,162 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:57:55,337 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:57:55,626 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:55,928 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:56,036 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:57:56,179 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:57:56,362 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:57:56,523 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:57:56,672 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:57:56,976 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:57,088 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:57:57,311 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:57,660 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:57,770 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:57:58,006 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:57:58,113 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:57:58,246 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:57:58,358 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:57:58,474 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:57:58,587 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:57:58,609 INFO L158 LiptonReduction]: Checked pairs total: 4776 [2021-04-29 00:57:58,610 INFO L160 LiptonReduction]: Total number of compositions: 111 [2021-04-29 00:57:58,611 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11746 [2021-04-29 00:57:58,618 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-04-29 00:57:58,618 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:57:58,619 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:57:58,619 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 00:57:58,619 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:57:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:57:58,620 INFO L82 PathProgramCache]: Analyzing trace with hash 485039, now seen corresponding path program 1 times [2021-04-29 00:57:58,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:57:58,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104795758] [2021-04-29 00:57:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:57:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:57:58,657 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-04-29 00:57:58,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:57:58,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:57:58,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104795758] [2021-04-29 00:57:58,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:57:58,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:57:58,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793666920] [2021-04-29 00:57:58,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:57:58,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:57:58,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:57:58,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:57:58,665 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 186 [2021-04-29 00:57:58,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:58,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:57:58,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 186 [2021-04-29 00:57:58,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:57:58,873 INFO L129 PetriNetUnfolder]: 337/715 cut-off events. [2021-04-29 00:57:58,873 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:57:58,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1382 conditions, 715 events. 337/715 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 4342 event pairs, 70 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 1332. Up to 505 conditions per place. [2021-04-29 00:57:58,893 INFO L132 encePairwiseOnDemand]: 154/186 looper letters, 22 selfloop transitions, 10 changer transitions 26/83 dead transitions. [2021-04-29 00:57:58,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 83 transitions, 275 flow [2021-04-29 00:57:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:57:58,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:57:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 400 transitions. [2021-04-29 00:57:58,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7168458781362007 [2021-04-29 00:57:58,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 400 transitions. [2021-04-29 00:57:58,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 400 transitions. [2021-04-29 00:57:58,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:57:58,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 400 transitions. [2021-04-29 00:57:58,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:58,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:58,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:58,912 INFO L185 Difference]: Start difference. First operand has 81 places, 73 transitions, 161 flow. Second operand 3 states and 400 transitions. [2021-04-29 00:57:58,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 83 transitions, 275 flow [2021-04-29 00:57:58,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 83 transitions, 272 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 00:57:58,916 INFO L241 Difference]: Finished difference. Result has 80 places, 52 transitions, 180 flow [2021-04-29 00:57:58,917 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=80, PETRI_TRANSITIONS=52} [2021-04-29 00:57:58,917 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, -1 predicate places. [2021-04-29 00:57:58,917 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:57:58,917 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 52 transitions, 180 flow [2021-04-29 00:57:58,918 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 52 transitions, 180 flow [2021-04-29 00:57:58,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 52 transitions, 180 flow [2021-04-29 00:57:58,988 INFO L129 PetriNetUnfolder]: 144/354 cut-off events. [2021-04-29 00:57:58,989 INFO L130 PetriNetUnfolder]: For 27/144 co-relation queries the response was YES. [2021-04-29 00:57:58,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 354 events. 144/354 cut-off events. For 27/144 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 2225 event pairs, 33 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 778. Up to 250 conditions per place. [2021-04-29 00:57:59,001 INFO L146 LiptonReduction]: Number of co-enabled transitions 1364 [2021-04-29 00:57:59,022 INFO L158 LiptonReduction]: Checked pairs total: 426 [2021-04-29 00:57:59,022 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:57:59,022 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 105 [2021-04-29 00:57:59,024 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 180 flow [2021-04-29 00:57:59,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:59,025 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:57:59,025 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:57:59,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:57:59,026 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:57:59,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:57:59,027 INFO L82 PathProgramCache]: Analyzing trace with hash -459066158, now seen corresponding path program 1 times [2021-04-29 00:57:59,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:57:59,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153096366] [2021-04-29 00:57:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:57:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:57:59,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:57:59,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:57:59,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:57:59,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:57:59,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:57:59,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:57:59,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:57:59,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153096366] [2021-04-29 00:57:59,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:57:59,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:57:59,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103796200] [2021-04-29 00:57:59,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:57:59,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:57:59,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:57:59,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:57:59,088 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 186 [2021-04-29 00:57:59,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:59,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:57:59,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 186 [2021-04-29 00:57:59,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:57:59,414 INFO L129 PetriNetUnfolder]: 380/1045 cut-off events. [2021-04-29 00:57:59,414 INFO L130 PetriNetUnfolder]: For 135/135 co-relation queries the response was YES. [2021-04-29 00:57:59,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3065 conditions, 1045 events. 380/1045 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 8925 event pairs, 85 based on Foata normal form. 15/371 useless extension candidates. Maximal degree in co-relation 3052. Up to 520 conditions per place. [2021-04-29 00:57:59,435 INFO L132 encePairwiseOnDemand]: 175/186 looper letters, 49 selfloop transitions, 23 changer transitions 0/95 dead transitions. [2021-04-29 00:57:59,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 95 transitions, 500 flow [2021-04-29 00:57:59,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:57:59,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:57:59,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 732 transitions. [2021-04-29 00:57:59,440 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6559139784946236 [2021-04-29 00:57:59,441 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 732 transitions. [2021-04-29 00:57:59,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 732 transitions. [2021-04-29 00:57:59,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:57:59,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 732 transitions. [2021-04-29 00:57:59,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:59,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:59,452 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:59,453 INFO L185 Difference]: Start difference. First operand has 54 places, 52 transitions, 180 flow. Second operand 6 states and 732 transitions. [2021-04-29 00:57:59,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 95 transitions, 500 flow [2021-04-29 00:57:59,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 95 transitions, 444 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:57:59,465 INFO L241 Difference]: Finished difference. Result has 60 places, 68 transitions, 323 flow [2021-04-29 00:57:59,466 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=323, PETRI_PLACES=60, PETRI_TRANSITIONS=68} [2021-04-29 00:57:59,466 INFO L343 CegarLoopForPetriNet]: 81 programPoint places, -21 predicate places. [2021-04-29 00:57:59,467 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:57:59,467 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 68 transitions, 323 flow [2021-04-29 00:57:59,467 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 68 transitions, 323 flow [2021-04-29 00:57:59,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 68 transitions, 323 flow [2021-04-29 00:57:59,540 INFO L129 PetriNetUnfolder]: 108/531 cut-off events. [2021-04-29 00:57:59,540 INFO L130 PetriNetUnfolder]: For 181/478 co-relation queries the response was YES. [2021-04-29 00:57:59,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1541 conditions, 531 events. 108/531 cut-off events. For 181/478 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 5239 event pairs, 27 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 1527. Up to 352 conditions per place. [2021-04-29 00:57:59,562 INFO L146 LiptonReduction]: Number of co-enabled transitions 1902 [2021-04-29 00:57:59,576 INFO L158 LiptonReduction]: Checked pairs total: 384 [2021-04-29 00:57:59,576 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:57:59,576 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 109 [2021-04-29 00:57:59,578 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 68 transitions, 323 flow [2021-04-29 00:57:59,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:57:59,579 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:57:59,579 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-04-29 00:57:59,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:57:59,579 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:57:59,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:57:59,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1217213297, now seen corresponding path program 1 times [2021-04-29 00:57:59,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:57:59,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538076007] [2021-04-29 00:57:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:57:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 00:57:59,600 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 00:57:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 00:57:59,616 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 00:57:59,624 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 00:57:59,624 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 00:57:59,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:57:59,625 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 00:57:59,626 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-04-29 00:57:59,637 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,638 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,638 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,638 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,638 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,638 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,638 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,638 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,639 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,640 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,640 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,640 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,640 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,640 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,640 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,641 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,641 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,642 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,643 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,643 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,644 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,644 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,644 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,644 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,645 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,645 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,646 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,646 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,646 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,646 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,647 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,647 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,647 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,647 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,648 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,648 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,648 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,648 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,649 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,649 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,649 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,649 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,649 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,650 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,650 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,651 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,651 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,652 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,652 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,653 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,653 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,654 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,654 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,655 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,655 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,656 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,656 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,657 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,657 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,658 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,658 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,659 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,659 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,659 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,659 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,659 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,661 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,661 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,661 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,662 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,662 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,663 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,663 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,663 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,663 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,663 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,664 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,665 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,667 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,667 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:57:59,669 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:57:59,670 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-29 00:57:59,671 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:57:59,671 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:57:59,671 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:57:59,671 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:57:59,671 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:57:59,671 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:57:59,671 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:57:59,672 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:57:59,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 94 transitions, 230 flow [2021-04-29 00:57:59,688 INFO L129 PetriNetUnfolder]: 5/110 cut-off events. [2021-04-29 00:57:59,688 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-29 00:57:59,689 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 110 events. 5/110 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 195 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 124. Up to 8 conditions per place. [2021-04-29 00:57:59,689 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 94 transitions, 230 flow [2021-04-29 00:57:59,690 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 69 transitions, 162 flow [2021-04-29 00:57:59,691 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:57:59,691 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 162 flow [2021-04-29 00:57:59,692 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 162 flow [2021-04-29 00:57:59,692 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 162 flow [2021-04-29 00:57:59,705 INFO L129 PetriNetUnfolder]: 5/110 cut-off events. [2021-04-29 00:57:59,705 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-29 00:57:59,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 110 events. 5/110 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 181 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 103. Up to 8 conditions per place. [2021-04-29 00:57:59,708 INFO L146 LiptonReduction]: Number of co-enabled transitions 1686 [2021-04-29 00:58:03,976 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:58:04,148 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:58:04,554 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:58:04,721 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:58:05,145 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:58:05,305 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-29 00:58:06,919 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:58:07,208 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:58:07,710 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:58:07,909 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:58:08,103 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:58:08,287 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:58:08,622 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:58:08,736 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:08,987 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:58:09,101 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:09,356 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:58:09,476 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:09,737 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:58:09,850 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:09,979 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:58:10,163 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-04-29 00:58:10,321 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:58:10,650 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:58:10,855 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-04-29 00:58:11,169 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:58:11,282 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:11,527 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-04-29 00:58:11,632 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:11,788 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:58:11,911 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:58:12,034 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:58:12,161 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:58:12,186 INFO L158 LiptonReduction]: Checked pairs total: 6992 [2021-04-29 00:58:12,186 INFO L160 LiptonReduction]: Total number of compositions: 109 [2021-04-29 00:58:12,188 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12497 [2021-04-29 00:58:12,209 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-04-29 00:58:12,209 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:58:12,209 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:58:12,209 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 00:58:12,210 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:58:12,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:58:12,210 INFO L82 PathProgramCache]: Analyzing trace with hash 705528, now seen corresponding path program 1 times [2021-04-29 00:58:12,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:58:12,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92890654] [2021-04-29 00:58:12,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:58:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:58:12,238 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-04-29 00:58:12,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:12,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:58:12,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92890654] [2021-04-29 00:58:12,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:58:12,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:58:12,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233116116] [2021-04-29 00:58:12,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:58:12,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:58:12,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:58:12,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:58:12,245 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 203 [2021-04-29 00:58:12,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 77 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:12,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:58:12,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 203 [2021-04-29 00:58:12,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:58:13,112 INFO L129 PetriNetUnfolder]: 3185/4865 cut-off events. [2021-04-29 00:58:13,113 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-29 00:58:13,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9670 conditions, 4865 events. 3185/4865 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 29325 event pairs, 836 based on Foata normal form. 0/1836 useless extension candidates. Maximal degree in co-relation 9619. Up to 4078 conditions per place. [2021-04-29 00:58:13,202 INFO L132 encePairwiseOnDemand]: 172/203 looper letters, 28 selfloop transitions, 13 changer transitions 26/95 dead transitions. [2021-04-29 00:58:13,202 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 95 transitions, 326 flow [2021-04-29 00:58:13,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:58:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:58:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2021-04-29 00:58:13,205 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7405582922824302 [2021-04-29 00:58:13,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2021-04-29 00:58:13,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2021-04-29 00:58:13,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:58:13,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2021-04-29 00:58:13,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:13,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:13,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:13,211 INFO L185 Difference]: Start difference. First operand has 87 places, 77 transitions, 178 flow. Second operand 3 states and 451 transitions. [2021-04-29 00:58:13,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 95 transitions, 326 flow [2021-04-29 00:58:13,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 95 transitions, 319 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-04-29 00:58:13,215 INFO L241 Difference]: Finished difference. Result has 89 places, 62 transitions, 221 flow [2021-04-29 00:58:13,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=89, PETRI_TRANSITIONS=62} [2021-04-29 00:58:13,218 INFO L343 CegarLoopForPetriNet]: 87 programPoint places, 2 predicate places. [2021-04-29 00:58:13,218 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:58:13,218 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 62 transitions, 221 flow [2021-04-29 00:58:13,219 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 62 transitions, 221 flow [2021-04-29 00:58:13,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 62 transitions, 221 flow [2021-04-29 00:58:13,420 INFO L129 PetriNetUnfolder]: 999/1646 cut-off events. [2021-04-29 00:58:13,421 INFO L130 PetriNetUnfolder]: For 95/608 co-relation queries the response was YES. [2021-04-29 00:58:13,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3864 conditions, 1646 events. 999/1646 cut-off events. For 95/608 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 10601 event pairs, 326 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 3852. Up to 1378 conditions per place. [2021-04-29 00:58:13,482 INFO L146 LiptonReduction]: Number of co-enabled transitions 2096 [2021-04-29 00:58:13,504 INFO L158 LiptonReduction]: Checked pairs total: 864 [2021-04-29 00:58:13,504 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:58:13,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 286 [2021-04-29 00:58:13,508 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 221 flow [2021-04-29 00:58:13,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:13,509 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:58:13,509 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:58:13,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:58:13,509 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:58:13,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:58:13,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1806574286, now seen corresponding path program 1 times [2021-04-29 00:58:13,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:58:13,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509350789] [2021-04-29 00:58:13,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:58:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:58:13,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:58:13,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:13,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:58:13,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:13,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:58:13,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:13,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:58:13,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509350789] [2021-04-29 00:58:13,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:58:13,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:58:13,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204308469] [2021-04-29 00:58:13,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:58:13,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:58:13,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:58:13,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:58:13,600 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 203 [2021-04-29 00:58:13,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 221 flow. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:13,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:58:13,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 203 [2021-04-29 00:58:13,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:58:15,514 INFO L129 PetriNetUnfolder]: 6042/9894 cut-off events. [2021-04-29 00:58:15,515 INFO L130 PetriNetUnfolder]: For 649/649 co-relation queries the response was YES. [2021-04-29 00:58:15,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28956 conditions, 9894 events. 6042/9894 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 1113. Compared 76573 event pairs, 981 based on Foata normal form. 75/4120 useless extension candidates. Maximal degree in co-relation 28942. Up to 5881 conditions per place. [2021-04-29 00:58:15,770 INFO L132 encePairwiseOnDemand]: 190/203 looper letters, 83 selfloop transitions, 35 changer transitions 0/144 dead transitions. [2021-04-29 00:58:15,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 144 transitions, 805 flow [2021-04-29 00:58:15,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:58:15,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:58:15,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 859 transitions. [2021-04-29 00:58:15,776 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7052545155993432 [2021-04-29 00:58:15,776 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 859 transitions. [2021-04-29 00:58:15,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 859 transitions. [2021-04-29 00:58:15,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:58:15,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 859 transitions. [2021-04-29 00:58:15,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.16666666666666) internal successors, (859), 6 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:15,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:15,788 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:15,788 INFO L185 Difference]: Start difference. First operand has 63 places, 62 transitions, 221 flow. Second operand 6 states and 859 transitions. [2021-04-29 00:58:15,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 144 transitions, 805 flow [2021-04-29 00:58:15,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 144 transitions, 707 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:58:15,844 INFO L241 Difference]: Finished difference. Result has 69 places, 102 transitions, 530 flow [2021-04-29 00:58:15,845 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=530, PETRI_PLACES=69, PETRI_TRANSITIONS=102} [2021-04-29 00:58:15,845 INFO L343 CegarLoopForPetriNet]: 87 programPoint places, -18 predicate places. [2021-04-29 00:58:15,845 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:58:15,845 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 102 transitions, 530 flow [2021-04-29 00:58:15,846 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 102 transitions, 530 flow [2021-04-29 00:58:15,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 102 transitions, 530 flow [2021-04-29 00:58:16,432 INFO L129 PetriNetUnfolder]: 2016/3626 cut-off events. [2021-04-29 00:58:16,433 INFO L130 PetriNetUnfolder]: For 1108/8014 co-relation queries the response was YES. [2021-04-29 00:58:16,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11258 conditions, 3626 events. 2016/3626 cut-off events. For 1108/8014 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 29298 event pairs, 342 based on Foata normal form. 1/1116 useless extension candidates. Maximal degree in co-relation 11243. Up to 3019 conditions per place. [2021-04-29 00:58:16,578 INFO L146 LiptonReduction]: Number of co-enabled transitions 3780 [2021-04-29 00:58:16,602 INFO L158 LiptonReduction]: Checked pairs total: 2667 [2021-04-29 00:58:16,602 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:58:16,602 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 757 [2021-04-29 00:58:16,606 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 102 transitions, 530 flow [2021-04-29 00:58:16,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:16,609 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:58:16,609 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:58:16,609 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:58:16,610 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:58:16,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:58:16,610 INFO L82 PathProgramCache]: Analyzing trace with hash 64472153, now seen corresponding path program 1 times [2021-04-29 00:58:16,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:58:16,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203938803] [2021-04-29 00:58:16,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:58:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:58:16,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:58:16,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:16,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:58:16,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:16,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:58:16,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:16,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-29 00:58:16,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203938803] [2021-04-29 00:58:16,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:58:16,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:58:16,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312128193] [2021-04-29 00:58:16,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:58:16,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:58:16,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:58:16,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:58:16,701 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 203 [2021-04-29 00:58:16,704 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 102 transitions, 530 flow. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:16,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:58:16,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 203 [2021-04-29 00:58:16,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:58:20,635 INFO L129 PetriNetUnfolder]: 8973/16244 cut-off events. [2021-04-29 00:58:20,635 INFO L130 PetriNetUnfolder]: For 4839/4839 co-relation queries the response was YES. [2021-04-29 00:58:20,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57921 conditions, 16244 events. 8973/16244 cut-off events. For 4839/4839 co-relation queries the response was YES. Maximal size of possible extension queue 2619. Compared 155947 event pairs, 1329 based on Foata normal form. 117/6438 useless extension candidates. Maximal degree in co-relation 57904. Up to 9652 conditions per place. [2021-04-29 00:58:20,977 INFO L132 encePairwiseOnDemand]: 190/203 looper letters, 117 selfloop transitions, 62 changer transitions 0/205 dead transitions. [2021-04-29 00:58:20,977 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 205 transitions, 1453 flow [2021-04-29 00:58:20,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:58:20,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:58:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 860 transitions. [2021-04-29 00:58:20,982 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7060755336617406 [2021-04-29 00:58:20,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 860 transitions. [2021-04-29 00:58:20,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 860 transitions. [2021-04-29 00:58:20,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:58:20,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 860 transitions. [2021-04-29 00:58:20,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.33333333333334) internal successors, (860), 6 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:20,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:20,992 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:20,993 INFO L185 Difference]: Start difference. First operand has 69 places, 102 transitions, 530 flow. Second operand 6 states and 860 transitions. [2021-04-29 00:58:20,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 205 transitions, 1453 flow [2021-04-29 00:58:21,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 205 transitions, 1453 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:58:21,358 INFO L241 Difference]: Finished difference. Result has 77 places, 148 transitions, 1135 flow [2021-04-29 00:58:21,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1135, PETRI_PLACES=77, PETRI_TRANSITIONS=148} [2021-04-29 00:58:21,359 INFO L343 CegarLoopForPetriNet]: 87 programPoint places, -10 predicate places. [2021-04-29 00:58:21,360 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:58:21,360 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 148 transitions, 1135 flow [2021-04-29 00:58:21,360 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 148 transitions, 1135 flow [2021-04-29 00:58:21,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 148 transitions, 1135 flow [2021-04-29 00:58:22,722 INFO L129 PetriNetUnfolder]: 3204/6752 cut-off events. [2021-04-29 00:58:22,722 INFO L130 PetriNetUnfolder]: For 6243/11694 co-relation queries the response was YES. [2021-04-29 00:58:22,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27873 conditions, 6752 events. 3204/6752 cut-off events. For 6243/11694 co-relation queries the response was YES. Maximal size of possible extension queue 1740. Compared 71933 event pairs, 396 based on Foata normal form. 8/2208 useless extension candidates. Maximal degree in co-relation 27853. Up to 5449 conditions per place. [2021-04-29 00:58:23,069 INFO L146 LiptonReduction]: Number of co-enabled transitions 5616 [2021-04-29 00:58:23,103 INFO L158 LiptonReduction]: Checked pairs total: 2628 [2021-04-29 00:58:23,103 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:58:23,103 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1743 [2021-04-29 00:58:23,105 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 148 transitions, 1135 flow [2021-04-29 00:58:23,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:23,106 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:58:23,106 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:58:23,107 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:58:23,107 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:58:23,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:58:23,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1813930318, now seen corresponding path program 1 times [2021-04-29 00:58:23,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:58:23,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448878442] [2021-04-29 00:58:23,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:58:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 00:58:23,123 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 00:58:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 00:58:23,136 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 00:58:23,144 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 00:58:23,144 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 00:58:23,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:58:23,144 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-04-29 00:58:23,145 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-04-29 00:58:23,232 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,232 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,232 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,233 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,233 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,235 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,235 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,236 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,236 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,236 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,236 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,238 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,238 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,238 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,239 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,239 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,239 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,239 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,240 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,241 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,241 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,241 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,241 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,241 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,241 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,242 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,242 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,242 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,242 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,242 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,242 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,242 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,243 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,243 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,243 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,243 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,243 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,243 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,244 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,244 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,244 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,244 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,244 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,244 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,244 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,245 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,245 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,245 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,245 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,245 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,245 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,246 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,246 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,246 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,246 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,246 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,247 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,247 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,247 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,247 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,248 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,248 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,249 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,249 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,249 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,256 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,256 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,257 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,257 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,258 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,259 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,259 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,260 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,260 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,260 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,260 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,260 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,261 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,261 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,262 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,262 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,262 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,262 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,262 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,263 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,263 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,263 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,264 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,264 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,265 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,265 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,265 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,266 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,266 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,267 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,268 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,268 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,269 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,269 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,270 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,270 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,271 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,271 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,272 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,272 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,272 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,273 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,273 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,274 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,275 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,275 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,275 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,278 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,278 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,279 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,279 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,280 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,280 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,281 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,281 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,281 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,282 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,283 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,283 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,284 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,286 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,286 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,287 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,289 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,289 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,290 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,291 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,292 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,292 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,293 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,293 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:58:23,294 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:58:23,294 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-29 00:58:23,296 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:58:23,296 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:58:23,296 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:58:23,296 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:58:23,296 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:58:23,297 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:58:23,297 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:58:23,297 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:58:23,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 113 transitions, 290 flow [2021-04-29 00:58:23,323 INFO L129 PetriNetUnfolder]: 6/132 cut-off events. [2021-04-29 00:58:23,323 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-04-29 00:58:23,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 132 events. 6/132 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 218 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 152. Up to 10 conditions per place. [2021-04-29 00:58:23,325 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 113 transitions, 290 flow [2021-04-29 00:58:23,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 76 transitions, 187 flow [2021-04-29 00:58:23,327 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:58:23,327 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 76 transitions, 187 flow [2021-04-29 00:58:23,327 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 76 transitions, 187 flow [2021-04-29 00:58:23,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 76 transitions, 187 flow [2021-04-29 00:58:23,346 INFO L129 PetriNetUnfolder]: 6/132 cut-off events. [2021-04-29 00:58:23,346 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-04-29 00:58:23,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 132 events. 6/132 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 242 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 131. Up to 10 conditions per place. [2021-04-29 00:58:23,352 INFO L146 LiptonReduction]: Number of co-enabled transitions 2284 [2021-04-29 00:58:28,714 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2021-04-29 00:58:28,947 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2021-04-29 00:58:30,174 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-29 00:58:30,285 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 00:58:30,543 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-29 00:58:30,874 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2021-04-29 00:58:31,200 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2021-04-29 00:58:31,697 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2021-04-29 00:58:32,005 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2021-04-29 00:58:34,445 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:58:34,573 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:34,697 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:58:34,816 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:34,946 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:58:35,075 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:35,209 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:58:35,363 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:35,485 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:58:35,605 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:35,734 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:58:35,854 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-29 00:58:36,724 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:58:36,850 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:58:36,976 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:58:37,105 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-29 00:58:37,135 INFO L158 LiptonReduction]: Checked pairs total: 13390 [2021-04-29 00:58:37,136 INFO L160 LiptonReduction]: Total number of compositions: 148 [2021-04-29 00:58:37,139 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13812 [2021-04-29 00:58:37,147 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2021-04-29 00:58:37,147 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:58:37,147 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:58:37,147 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 00:58:37,148 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-29 00:58:37,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:58:37,149 INFO L82 PathProgramCache]: Analyzing trace with hash 982330, now seen corresponding path program 1 times [2021-04-29 00:58:37,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:58:37,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996953664] [2021-04-29 00:58:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:58:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:58:37,190 INFO L142 QuantifierPusher]: treesize reduction 5, result has 37.5 percent of original size [2021-04-29 00:58:37,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:37,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:58:37,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996953664] [2021-04-29 00:58:37,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:58:37,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:58:37,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588534664] [2021-04-29 00:58:37,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:58:37,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:58:37,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:58:37,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:58:37,198 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 261 [2021-04-29 00:58:37,198 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 94 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:37,198 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:58:37,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 261 [2021-04-29 00:58:37,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:58:44,191 INFO L129 PetriNetUnfolder]: 36781/49308 cut-off events. [2021-04-29 00:58:44,192 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-04-29 00:58:44,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98533 conditions, 49308 events. 36781/49308 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 3282. Compared 308276 event pairs, 13666 based on Foata normal form. 0/19469 useless extension candidates. Maximal degree in co-relation 98483. Up to 45298 conditions per place. [2021-04-29 00:58:45,440 INFO L132 encePairwiseOnDemand]: 227/261 looper letters, 46 selfloop transitions, 16 changer transitions 26/121 dead transitions. [2021-04-29 00:58:45,441 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 121 transitions, 427 flow [2021-04-29 00:58:45,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:58:45,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:58:45,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2021-04-29 00:58:45,445 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7177522349936143 [2021-04-29 00:58:45,445 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 562 transitions. [2021-04-29 00:58:45,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 562 transitions. [2021-04-29 00:58:45,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:58:45,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 562 transitions. [2021-04-29 00:58:45,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:45,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 261.0) internal successors, (1044), 4 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:45,453 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 261.0) internal successors, (1044), 4 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:45,454 INFO L185 Difference]: Start difference. First operand has 106 places, 94 transitions, 223 flow. Second operand 3 states and 562 transitions. [2021-04-29 00:58:45,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 121 transitions, 427 flow [2021-04-29 00:58:45,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 121 transitions, 414 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-04-29 00:58:45,464 INFO L241 Difference]: Finished difference. Result has 107 places, 81 transitions, 284 flow [2021-04-29 00:58:45,464 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=107, PETRI_TRANSITIONS=81} [2021-04-29 00:58:45,464 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, 1 predicate places. [2021-04-29 00:58:45,465 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:58:45,465 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 81 transitions, 284 flow [2021-04-29 00:58:45,466 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 81 transitions, 284 flow [2021-04-29 00:58:45,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 81 transitions, 284 flow [2021-04-29 00:58:46,296 INFO L129 PetriNetUnfolder]: 6588/9253 cut-off events. [2021-04-29 00:58:46,297 INFO L130 PetriNetUnfolder]: For 343/3988 co-relation queries the response was YES. [2021-04-29 00:58:46,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21498 conditions, 9253 events. 6588/9253 cut-off events. For 343/3988 co-relation queries the response was YES. Maximal size of possible extension queue 1377. Compared 61558 event pairs, 3312 based on Foata normal form. 0/2765 useless extension candidates. Maximal degree in co-relation 21485. Up to 8374 conditions per place. [2021-04-29 00:58:46,676 INFO L146 LiptonReduction]: Number of co-enabled transitions 3842 [2021-04-29 00:58:46,707 INFO L158 LiptonReduction]: Checked pairs total: 1596 [2021-04-29 00:58:46,708 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:58:46,708 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1243 [2021-04-29 00:58:46,710 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 81 transitions, 284 flow [2021-04-29 00:58:46,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:46,710 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:58:46,711 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:58:46,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 00:58:46,711 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-29 00:58:46,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:58:46,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1990362993, now seen corresponding path program 1 times [2021-04-29 00:58:46,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:58:46,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898647695] [2021-04-29 00:58:46,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:58:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:58:46,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:58:46,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:46,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:58:46,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:46,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:58:46,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:58:46,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:58:46,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898647695] [2021-04-29 00:58:46,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:58:46,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:58:46,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310098429] [2021-04-29 00:58:46,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:58:46,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:58:46,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:58:46,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:58:46,755 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 261 [2021-04-29 00:58:46,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 284 flow. Second operand has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:58:46,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:58:46,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 261 [2021-04-29 00:58:46,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:59:03,774 INFO L129 PetriNetUnfolder]: 82021/113294 cut-off events. [2021-04-29 00:59:03,774 INFO L130 PetriNetUnfolder]: For 4745/4745 co-relation queries the response was YES. [2021-04-29 00:59:04,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317911 conditions, 113294 events. 82021/113294 cut-off events. For 4745/4745 co-relation queries the response was YES. Maximal size of possible extension queue 8622. Compared 846700 event pairs, 18209 based on Foata normal form. 375/45630 useless extension candidates. Maximal degree in co-relation 317896. Up to 70375 conditions per place. [2021-04-29 00:59:06,194 INFO L132 encePairwiseOnDemand]: 244/261 looper letters, 132 selfloop transitions, 47 changer transitions 0/210 dead transitions. [2021-04-29 00:59:06,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 210 transitions, 1146 flow [2021-04-29 00:59:06,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:59:06,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:59:06,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1088 transitions. [2021-04-29 00:59:06,200 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6947637292464879 [2021-04-29 00:59:06,200 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1088 transitions. [2021-04-29 00:59:06,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1088 transitions. [2021-04-29 00:59:06,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:59:06,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1088 transitions. [2021-04-29 00:59:06,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:59:06,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:59:06,211 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:59:06,211 INFO L185 Difference]: Start difference. First operand has 81 places, 81 transitions, 284 flow. Second operand 6 states and 1088 transitions. [2021-04-29 00:59:06,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 210 transitions, 1146 flow [2021-04-29 00:59:06,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 210 transitions, 1018 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:59:06,602 INFO L241 Difference]: Finished difference. Result has 87 places, 136 transitions, 709 flow [2021-04-29 00:59:06,602 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=709, PETRI_PLACES=87, PETRI_TRANSITIONS=136} [2021-04-29 00:59:06,602 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, -19 predicate places. [2021-04-29 00:59:06,602 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:59:06,603 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 136 transitions, 709 flow [2021-04-29 00:59:06,603 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 136 transitions, 709 flow [2021-04-29 00:59:06,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 136 transitions, 709 flow [2021-04-29 00:59:09,022 INFO L129 PetriNetUnfolder]: 15552/22654 cut-off events. [2021-04-29 00:59:09,022 INFO L130 PetriNetUnfolder]: For 6856/142273 co-relation queries the response was YES. [2021-04-29 00:59:09,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71804 conditions, 22654 events. 15552/22654 cut-off events. For 6856/142273 co-relation queries the response was YES. Maximal size of possible extension queue 3024. Compared 174662 event pairs, 4023 based on Foata normal form. 2/6986 useless extension candidates. Maximal degree in co-relation 71788. Up to 20416 conditions per place. [2021-04-29 00:59:10,396 INFO L146 LiptonReduction]: Number of co-enabled transitions 7168 [2021-04-29 00:59:10,437 INFO L158 LiptonReduction]: Checked pairs total: 6678 [2021-04-29 00:59:10,437 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:59:10,438 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3836 [2021-04-29 00:59:10,439 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 136 transitions, 709 flow [2021-04-29 00:59:10,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:59:10,440 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:59:10,440 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:59:10,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 00:59:10,440 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-29 00:59:10,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:59:10,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1304632721, now seen corresponding path program 1 times [2021-04-29 00:59:10,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:59:10,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162462577] [2021-04-29 00:59:10,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:59:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:59:10,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:59:10,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:59:10,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:59:10,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:59:10,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:59:10,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:59:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-29 00:59:10,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162462577] [2021-04-29 00:59:10,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:59:10,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:59:10,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968782177] [2021-04-29 00:59:10,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:59:10,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:59:10,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:59:10,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:59:10,486 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 261 [2021-04-29 00:59:10,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 136 transitions, 709 flow. Second operand has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:59:10,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:59:10,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 261 [2021-04-29 00:59:10,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:59:50,843 INFO L129 PetriNetUnfolder]: 154351/220693 cut-off events. [2021-04-29 00:59:50,844 INFO L130 PetriNetUnfolder]: For 44961/44961 co-relation queries the response was YES. [2021-04-29 00:59:53,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 775984 conditions, 220693 events. 154351/220693 cut-off events. For 44961/44961 co-relation queries the response was YES. Maximal size of possible extension queue 18954. Compared 1930060 event pairs, 31805 based on Foata normal form. 639/85433 useless extension candidates. Maximal degree in co-relation 775966. Up to 138421 conditions per place. [2021-04-29 00:59:55,700 INFO L132 encePairwiseOnDemand]: 244/261 looper letters, 190 selfloop transitions, 83 changer transitions 0/304 dead transitions. [2021-04-29 00:59:55,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 304 transitions, 2116 flow [2021-04-29 00:59:55,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:59:55,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:59:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1089 transitions. [2021-04-29 00:59:55,706 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6954022988505747 [2021-04-29 00:59:55,707 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1089 transitions. [2021-04-29 00:59:55,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1089 transitions. [2021-04-29 00:59:55,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:59:55,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1089 transitions. [2021-04-29 00:59:55,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:59:55,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:59:55,717 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:59:55,717 INFO L185 Difference]: Start difference. First operand has 87 places, 136 transitions, 709 flow. Second operand 6 states and 1089 transitions. [2021-04-29 00:59:55,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 304 transitions, 2116 flow [2021-04-29 01:00:00,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 304 transitions, 2116 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 01:00:00,714 INFO L241 Difference]: Finished difference. Result has 95 places, 197 transitions, 1502 flow [2021-04-29 01:00:00,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=709, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1502, PETRI_PLACES=95, PETRI_TRANSITIONS=197} [2021-04-29 01:00:00,715 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, -11 predicate places. [2021-04-29 01:00:00,715 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:00:00,715 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 197 transitions, 1502 flow [2021-04-29 01:00:00,716 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 197 transitions, 1502 flow [2021-04-29 01:00:00,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 197 transitions, 1502 flow [2021-04-29 01:00:08,779 INFO L129 PetriNetUnfolder]: 33624/51049 cut-off events. [2021-04-29 01:00:08,779 INFO L130 PetriNetUnfolder]: For 43143/318750 co-relation queries the response was YES. [2021-04-29 01:00:09,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214029 conditions, 51049 events. 33624/51049 cut-off events. For 43143/318750 co-relation queries the response was YES. Maximal size of possible extension queue 6610. Compared 461571 event pairs, 5832 based on Foata normal form. 16/16473 useless extension candidates. Maximal degree in co-relation 214008. Up to 45631 conditions per place. [2021-04-29 01:00:11,630 INFO L146 LiptonReduction]: Number of co-enabled transitions 10882 [2021-04-29 01:00:11,713 INFO L158 LiptonReduction]: Checked pairs total: 10908 [2021-04-29 01:00:11,713 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:00:11,713 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10998 [2021-04-29 01:00:11,714 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 197 transitions, 1502 flow [2021-04-29 01:00:11,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:00:11,715 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:00:11,715 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 01:00:11,716 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 01:00:11,716 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-29 01:00:11,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:00:11,716 INFO L82 PathProgramCache]: Analyzing trace with hash -373788688, now seen corresponding path program 1 times [2021-04-29 01:00:11,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:00:11,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348368581] [2021-04-29 01:00:11,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:00:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:00:11,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:00:11,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:00:11,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:00:11,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:00:11,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:00:11,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:00:11,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:00:11,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:00:11,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:00:11,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:00:11,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-29 01:00:11,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348368581] [2021-04-29 01:00:11,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:00:11,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 01:00:11,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939536049] [2021-04-29 01:00:11,785 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 01:00:11,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:00:11,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 01:00:11,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 01:00:11,788 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 261 [2021-04-29 01:00:11,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 197 transitions, 1502 flow. Second operand has 7 states, 7 states have (on average 157.14285714285714) internal successors, (1100), 7 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:00:11,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:00:11,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 261 [2021-04-29 01:00:11,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:01:03,500 INFO L129 PetriNetUnfolder]: 186126/268298 cut-off events. [2021-04-29 01:01:03,501 INFO L130 PetriNetUnfolder]: For 148365/148365 co-relation queries the response was YES. [2021-04-29 01:01:05,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1126626 conditions, 268298 events. 186126/268298 cut-off events. For 148365/148365 co-relation queries the response was YES. Maximal size of possible extension queue 23427. Compared 2428418 event pairs, 25209 based on Foata normal form. 225/111928 useless extension candidates. Maximal degree in co-relation 1126603. Up to 164059 conditions per place. [2021-04-29 01:01:10,226 INFO L132 encePairwiseOnDemand]: 243/261 looper letters, 283 selfloop transitions, 162 changer transitions 0/474 dead transitions. [2021-04-29 01:01:10,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 474 transitions, 3666 flow [2021-04-29 01:01:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-29 01:01:10,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-04-29 01:01:10,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2332 transitions. [2021-04-29 01:01:10,255 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6872973769525493 [2021-04-29 01:01:10,256 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2332 transitions. [2021-04-29 01:01:10,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2332 transitions. [2021-04-29 01:01:10,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:01:10,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2332 transitions. [2021-04-29 01:01:10,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 179.3846153846154) internal successors, (2332), 13 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:01:10,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 261.0) internal successors, (3654), 14 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:01:10,296 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 261.0) internal successors, (3654), 14 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:01:10,296 INFO L185 Difference]: Start difference. First operand has 95 places, 197 transitions, 1502 flow. Second operand 13 states and 2332 transitions. [2021-04-29 01:01:10,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 474 transitions, 3666 flow [2021-04-29 01:01:35,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 474 transitions, 3626 flow, removed 12 selfloop flow, removed 1 redundant places. [2021-04-29 01:01:35,916 INFO L241 Difference]: Finished difference. Result has 109 places, 251 transitions, 2439 flow [2021-04-29 01:01:35,917 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=1474, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2439, PETRI_PLACES=109, PETRI_TRANSITIONS=251} [2021-04-29 01:01:35,917 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2021-04-29 01:01:35,917 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:01:35,917 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 251 transitions, 2439 flow [2021-04-29 01:01:35,918 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 251 transitions, 2439 flow [2021-04-29 01:01:35,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 251 transitions, 2439 flow [2021-04-29 01:01:44,653 INFO L129 PetriNetUnfolder]: 40072/61701 cut-off events. [2021-04-29 01:01:44,653 INFO L130 PetriNetUnfolder]: For 104119/434497 co-relation queries the response was YES. [2021-04-29 01:01:45,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 316565 conditions, 61701 events. 40072/61701 cut-off events. For 104119/434497 co-relation queries the response was YES. Maximal size of possible extension queue 8253. Compared 582964 event pairs, 6312 based on Foata normal form. 102/20299 useless extension candidates. Maximal degree in co-relation 316540. Up to 54712 conditions per place. [2021-04-29 01:01:47,081 INFO L146 LiptonReduction]: Number of co-enabled transitions 14040 [2021-04-29 01:01:47,146 INFO L158 LiptonReduction]: Checked pairs total: 19125 [2021-04-29 01:01:47,146 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:01:47,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11230 [2021-04-29 01:01:47,148 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 251 transitions, 2439 flow [2021-04-29 01:01:47,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 157.14285714285714) internal successors, (1100), 7 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:01:47,148 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:01:47,149 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 01:01:47,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-29 01:01:47,149 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-29 01:01:47,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:01:47,149 INFO L82 PathProgramCache]: Analyzing trace with hash -374800528, now seen corresponding path program 2 times [2021-04-29 01:01:47,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:01:47,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461373432] [2021-04-29 01:01:47,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:01:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:01:47,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:01:47,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:01:47,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:01:47,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:01:47,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:01:47,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:01:47,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:01:47,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:01:47,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:01:47,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:01:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-04-29 01:01:47,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461373432] [2021-04-29 01:01:47,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:01:47,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 01:01:47,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649799162] [2021-04-29 01:01:47,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 01:01:47,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:01:47,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 01:01:47,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 01:01:47,204 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 261 [2021-04-29 01:01:47,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 251 transitions, 2439 flow. Second operand has 7 states, 7 states have (on average 157.14285714285714) internal successors, (1100), 7 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:01:47,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:01:47,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 261 [2021-04-29 01:01:47,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:02:43,365 INFO L129 PetriNetUnfolder]: 202002/294146 cut-off events. [2021-04-29 01:02:43,365 INFO L130 PetriNetUnfolder]: For 261613/261613 co-relation queries the response was YES. [2021-04-29 01:02:46,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1426686 conditions, 294146 events. 202002/294146 cut-off events. For 261613/261613 co-relation queries the response was YES. Maximal size of possible extension queue 26298. Compared 2763738 event pairs, 23127 based on Foata normal form. 225/121243 useless extension candidates. Maximal degree in co-relation 1426659. Up to 180583 conditions per place. [2021-04-29 01:02:51,304 INFO L132 encePairwiseOnDemand]: 243/261 looper letters, 307 selfloop transitions, 192 changer transitions 0/528 dead transitions. [2021-04-29 01:02:51,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 528 transitions, 4861 flow [2021-04-29 01:02:51,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-29 01:02:51,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-04-29 01:02:51,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2332 transitions. [2021-04-29 01:02:51,331 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6872973769525493 [2021-04-29 01:02:51,331 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2332 transitions. [2021-04-29 01:02:51,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2332 transitions. [2021-04-29 01:02:51,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:02:51,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2332 transitions. [2021-04-29 01:02:51,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 179.3846153846154) internal successors, (2332), 13 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:02:51,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 261.0) internal successors, (3654), 14 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:02:51,370 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 261.0) internal successors, (3654), 14 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:02:51,370 INFO L185 Difference]: Start difference. First operand has 109 places, 251 transitions, 2439 flow. Second operand 13 states and 2332 transitions. [2021-04-29 01:02:51,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 528 transitions, 4861 flow [2021-04-29 01:05:34,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 528 transitions, 4596 flow, removed 49 selfloop flow, removed 6 redundant places. [2021-04-29 01:05:34,407 INFO L241 Difference]: Finished difference. Result has 118 places, 300 transitions, 3255 flow [2021-04-29 01:05:34,407 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=2210, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3255, PETRI_PLACES=118, PETRI_TRANSITIONS=300} [2021-04-29 01:05:34,408 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2021-04-29 01:05:34,408 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:05:34,408 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 300 transitions, 3255 flow [2021-04-29 01:05:34,408 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 300 transitions, 3255 flow [2021-04-29 01:05:34,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 300 transitions, 3255 flow [2021-04-29 01:05:46,028 INFO L129 PetriNetUnfolder]: 46222/72054 cut-off events. [2021-04-29 01:05:46,028 INFO L130 PetriNetUnfolder]: For 170338/530616 co-relation queries the response was YES. [2021-04-29 01:05:46,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418639 conditions, 72054 events. 46222/72054 cut-off events. For 170338/530616 co-relation queries the response was YES. Maximal size of possible extension queue 9855. Compared 707232 event pairs, 6882 based on Foata normal form. 287/24151 useless extension candidates. Maximal degree in co-relation 418612. Up to 63397 conditions per place. [2021-04-29 01:05:49,100 INFO L146 LiptonReduction]: Number of co-enabled transitions 16668 [2021-04-29 01:05:49,201 INFO L158 LiptonReduction]: Checked pairs total: 29325 [2021-04-29 01:05:49,202 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:05:49,202 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14794 [2021-04-29 01:05:49,203 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 300 transitions, 3255 flow [2021-04-29 01:05:49,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 157.14285714285714) internal successors, (1100), 7 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:05:49,204 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:05:49,204 INFO L263 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 01:05:49,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-29 01:05:49,204 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-04-29 01:05:49,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:05:49,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1188492119, now seen corresponding path program 1 times [2021-04-29 01:05:49,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:05:49,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830501663] [2021-04-29 01:05:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:05:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:05:49,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:05:49,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:05:49,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:05:49,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:05:49,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:05:49,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:05:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-04-29 01:05:49,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830501663] [2021-04-29 01:05:49,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:05:49,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 01:05:49,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014067757] [2021-04-29 01:05:49,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 01:05:49,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:05:49,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 01:05:49,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 01:05:49,246 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 261 [2021-04-29 01:05:49,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 300 transitions, 3255 flow. Second operand has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:05:49,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:05:49,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 261 [2021-04-29 01:05:49,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:07:54,243 INFO L129 PetriNetUnfolder]: 323850/501304 cut-off events. [2021-04-29 01:07:54,246 INFO L130 PetriNetUnfolder]: For 742556/748515 co-relation queries the response was YES. [2021-04-29 01:07:58,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2740592 conditions, 501304 events. 323850/501304 cut-off events. For 742556/748515 co-relation queries the response was YES. Maximal size of possible extension queue 52974. Compared 5524747 event pairs, 55527 based on Foata normal form. 1319/177703 useless extension candidates. Maximal degree in co-relation 2740563. Up to 311707 conditions per place. [2021-04-29 01:08:03,876 INFO L132 encePairwiseOnDemand]: 244/261 looper letters, 444 selfloop transitions, 179 changer transitions 0/654 dead transitions. [2021-04-29 01:08:03,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 654 transitions, 8372 flow [2021-04-29 01:08:03,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 01:08:03,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 01:08:03,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1089 transitions. [2021-04-29 01:08:03,879 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6954022988505747 [2021-04-29 01:08:03,879 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1089 transitions. [2021-04-29 01:08:03,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1089 transitions. [2021-04-29 01:08:03,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:08:03,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1089 transitions. [2021-04-29 01:08:03,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.5) internal successors, (1089), 6 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:08:03,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:08:03,888 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:08:03,888 INFO L185 Difference]: Start difference. First operand has 118 places, 300 transitions, 3255 flow. Second operand 6 states and 1089 transitions. [2021-04-29 01:08:03,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 654 transitions, 8372 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown