/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/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 01:07:39,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 01:07:39,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 01:07:39,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 01:07:39,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 01:07:39,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 01:07:39,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 01:07:39,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 01:07:39,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 01:07:39,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 01:07:39,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 01:07:39,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 01:07:39,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 01:07:39,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 01:07:39,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 01:07:39,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 01:07:39,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 01:07:39,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 01:07:39,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 01:07:39,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 01:07:39,878 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 01:07:39,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 01:07:39,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 01:07:39,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 01:07:39,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 01:07:39,910 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 01:07:39,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 01:07:39,911 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 01:07:39,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 01:07:39,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 01:07:39,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 01:07:39,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 01:07:39,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 01:07:39,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 01:07:39,912 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 01:07:39,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 01:07:39,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 01:07:39,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 01:07:39,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 01:07:39,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 01:07:39,914 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 01:07:39,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 01:07:39,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 01:07:39,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 01:07:39,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 01:07:39,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 01:07:39,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 01:07:39,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 01:07:39,916 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 01:07:39,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 01:07:39,916 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 01:07:39,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 01:07:40,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 01:07:40,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 01:07:40,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 01:07:40,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 01:07:40,336 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 01:07:40,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2021-04-29 01:07:40,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b3307a1/e11c983bb31d4764bc2b45c51f67ced4/FLAGced876f57 [2021-04-29 01:07:41,261 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 01:07:41,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2021-04-29 01:07:41,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b3307a1/e11c983bb31d4764bc2b45c51f67ced4/FLAGced876f57 [2021-04-29 01:07:41,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b3307a1/e11c983bb31d4764bc2b45c51f67ced4 [2021-04-29 01:07:41,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 01:07:41,444 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 01:07:41,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 01:07:41,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 01:07:41,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 01:07:41,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 01:07:41" (1/1) ... [2021-04-29 01:07:41,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4597ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:41, skipping insertion in model container [2021-04-29 01:07:41,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 01:07:41" (1/1) ... [2021-04-29 01:07:41,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 01:07:41,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 01:07:42,250 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2021-04-29 01:07:42,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 01:07:42,281 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 01:07:42,419 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i[76153,76166] [2021-04-29 01:07:42,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 01:07:42,753 INFO L208 MainTranslator]: Completed translation [2021-04-29 01:07:42,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42 WrapperNode [2021-04-29 01:07:42,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 01:07:42,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 01:07:42,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 01:07:42,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 01:07:42,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (1/1) ... [2021-04-29 01:07:42,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (1/1) ... [2021-04-29 01:07:42,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 01:07:42,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 01:07:42,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 01:07:42,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 01:07:42,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (1/1) ... [2021-04-29 01:07:42,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (1/1) ... [2021-04-29 01:07:42,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (1/1) ... [2021-04-29 01:07:42,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (1/1) ... [2021-04-29 01:07:42,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (1/1) ... [2021-04-29 01:07:42,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (1/1) ... [2021-04-29 01:07:42,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (1/1) ... [2021-04-29 01:07:42,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 01:07:42,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 01:07:42,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 01:07:42,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 01:07:42,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (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 01:07:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 01:07:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 01:07:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 01:07:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-29 01:07:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-04-29 01:07:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-04-29 01:07:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 01:07:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 01:07:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 01:07:43,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 01:07:43,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 01:07:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 01:07:43,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 01:07:43,090 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 01:07:44,085 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 01:07:44,086 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-04-29 01:07:44,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 01:07:44 BoogieIcfgContainer [2021-04-29 01:07:44,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 01:07:44,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 01:07:44,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 01:07:44,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 01:07:44,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 01:07:41" (1/3) ... [2021-04-29 01:07:44,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbb10b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 01:07:44, skipping insertion in model container [2021-04-29 01:07:44,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:07:42" (2/3) ... [2021-04-29 01:07:44,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbb10b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 01:07:44, skipping insertion in model container [2021-04-29 01:07:44,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 01:07:44" (3/3) ... [2021-04-29 01:07:44,102 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2021-04-29 01:07:44,113 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 01:07:44,119 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-04-29 01:07:44,120 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 01:07:44,170 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,171 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,171 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,171 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,172 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,172 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,172 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,172 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,173 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,174 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,178 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,178 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,178 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,179 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,179 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:07:44,186 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-04-29 01:07:44,211 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 01:07:44,237 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 01:07:44,237 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 01:07:44,237 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 01:07:44,237 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 01:07:44,237 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 01:07:44,238 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 01:07:44,238 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 01:07:44,238 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 01:07:44,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 87 transitions, 182 flow [2021-04-29 01:07:44,330 INFO L129 PetriNetUnfolder]: 4/98 cut-off events. [2021-04-29 01:07:44,330 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:07:44,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 4/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2021-04-29 01:07:44,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 87 transitions, 182 flow [2021-04-29 01:07:44,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 72 transitions, 150 flow [2021-04-29 01:07:44,341 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:07:44,358 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 72 transitions, 150 flow [2021-04-29 01:07:44,363 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 72 transitions, 150 flow [2021-04-29 01:07:44,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 150 flow [2021-04-29 01:07:44,384 INFO L129 PetriNetUnfolder]: 1/72 cut-off events. [2021-04-29 01:07:44,384 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:07:44,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 1/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-04-29 01:07:44,387 INFO L146 LiptonReduction]: Number of co-enabled transitions 168 [2021-04-29 01:07:46,873 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-04-29 01:07:47,052 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-04-29 01:07:47,439 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-04-29 01:07:47,627 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-04-29 01:07:47,872 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-04-29 01:07:48,126 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-04-29 01:07:51,065 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:51,168 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:51,291 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:51,398 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:55,245 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:55,350 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:55,459 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:55,584 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-29 01:07:55,701 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:07:55,824 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-29 01:07:55,938 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:07:56,054 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:07:56,166 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:07:56,278 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:07:56,399 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:07:56,522 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:07:56,644 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 01:07:56,776 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:07:56,897 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 01:07:57,102 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:57,305 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:57,413 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:57,535 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:57,648 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:57,755 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:57,863 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:57,967 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:58,072 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:58,179 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:58,287 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:58,394 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:58,511 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:58,622 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:58,731 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:58,839 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:58,945 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:59,052 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:07:59,180 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:07:59,300 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 01:07:59,429 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:07:59,553 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 01:07:59,661 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:07:59,884 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:07:59,989 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:08:00,122 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:00,246 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-29 01:08:00,365 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:00,478 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-29 01:08:00,591 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:08:00,698 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:08:00,814 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:08:00,915 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:08:01,022 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 01:08:01,226 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 01:08:01,337 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 01:08:01,441 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-29 01:08:01,849 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-29 01:08:01,983 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:08:02,105 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-29 01:08:02,213 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:08:02,338 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-29 01:08:02,471 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:02,595 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-29 01:08:02,707 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:02,876 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-29 01:08:03,012 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:03,158 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-29 01:08:03,302 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:03,456 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:03,604 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:08:03,756 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:03,897 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:08:04,047 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-29 01:08:04,200 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:04,348 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-29 01:08:04,489 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:04,627 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:04,757 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:04,917 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:05,044 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:05,183 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:05,314 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:05,458 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:05,594 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:05,736 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:05,864 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:05,996 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:06,127 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:06,286 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:06,443 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:08:06,606 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:06,761 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:08:06,896 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:07,033 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:07,178 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:07,335 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:07,468 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:07,597 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:07,735 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:07,868 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:08,012 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:08,140 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:08,286 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:08,422 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:08,565 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:08,699 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:08,836 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:08,978 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:09,343 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 97 [2021-04-29 01:08:09,507 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-29 01:08:09,854 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2021-04-29 01:08:10,007 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-29 01:08:10,335 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2021-04-29 01:08:10,505 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:08:10,875 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2021-04-29 01:08:11,061 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:08:11,386 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-04-29 01:08:11,546 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-29 01:08:11,915 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2021-04-29 01:08:12,101 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-29 01:08:12,473 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:08:12,632 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-29 01:08:13,000 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2021-04-29 01:08:13,168 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-29 01:08:13,513 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 95 [2021-04-29 01:08:13,673 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-29 01:08:14,036 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:08:14,207 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-29 01:08:14,689 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2021-04-29 01:08:14,925 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-04-29 01:08:15,450 WARN L205 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-29 01:08:15,702 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-04-29 01:08:16,097 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-04-29 01:08:16,279 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:08:16,680 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2021-04-29 01:08:16,884 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-29 01:08:17,051 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:17,213 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:17,391 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:17,556 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:17,945 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2021-04-29 01:08:18,126 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:08:18,508 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2021-04-29 01:08:18,676 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-29 01:08:19,076 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2021-04-29 01:08:19,272 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:08:19,684 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2021-04-29 01:08:19,880 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-29 01:08:20,258 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2021-04-29 01:08:20,425 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:20,837 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-04-29 01:08:21,018 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-29 01:08:21,404 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-04-29 01:08:21,580 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:08:21,993 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2021-04-29 01:08:22,197 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-29 01:08:22,520 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 95 [2021-04-29 01:08:22,687 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-29 01:08:23,044 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:08:23,231 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-29 01:08:23,308 INFO L158 LiptonReduction]: Checked pairs total: 591 [2021-04-29 01:08:23,308 INFO L160 LiptonReduction]: Total number of compositions: 194 [2021-04-29 01:08:23,315 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38975 [2021-04-29 01:08:23,337 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-04-29 01:08:23,337 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:08:23,337 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:08:23,339 INFO L263 CegarLoopForPetriNet]: trace histogram [1] [2021-04-29 01:08:23,339 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:08:23,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:08:23,352 INFO L82 PathProgramCache]: Analyzing trace with hash 447, now seen corresponding path program 1 times [2021-04-29 01:08:23,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:08:23,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356852550] [2021-04-29 01:08:23,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:08:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:08:23,679 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 01:08:23,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356852550] [2021-04-29 01:08:23,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:08:23,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-04-29 01:08:23,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42013836] [2021-04-29 01:08:23,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-04-29 01:08:23,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:08:23,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-04-29 01:08:23,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-04-29 01:08:23,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 281 [2021-04-29 01:08:23,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 180 flow. Second operand has 2 states, 2 states have (on average 259.5) internal successors, (519), 2 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:08:23,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:08:23,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 281 [2021-04-29 01:08:23,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:08:23,798 INFO L129 PetriNetUnfolder]: 0/80 cut-off events. [2021-04-29 01:08:23,799 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:08:23,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 80 events. 0/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 503 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 01:08:23,800 INFO L132 encePairwiseOnDemand]: 274/281 looper letters, 0 selfloop transitions, 0 changer transitions 69/80 dead transitions. [2021-04-29 01:08:23,800 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 80 transitions, 166 flow [2021-04-29 01:08:23,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-29 01:08:23,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-04-29 01:08:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 525 transitions. [2021-04-29 01:08:23,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9341637010676157 [2021-04-29 01:08:23,821 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 525 transitions. [2021-04-29 01:08:23,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 525 transitions. [2021-04-29 01:08:23,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:08:23,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 525 transitions. [2021-04-29 01:08:23,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 262.5) internal successors, (525), 2 states have internal predecessors, (525), 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 01:08:23,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 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 01:08:23,843 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 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 01:08:23,845 INFO L185 Difference]: Start difference. First operand has 91 places, 87 transitions, 180 flow. Second operand 2 states and 525 transitions. [2021-04-29 01:08:23,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 80 transitions, 166 flow [2021-04-29 01:08:23,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 80 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 01:08:23,852 INFO L241 Difference]: Finished difference. Result has 83 places, 11 transitions, 23 flow [2021-04-29 01:08:23,854 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=23, PETRI_PLACES=83, PETRI_TRANSITIONS=11} [2021-04-29 01:08:23,855 INFO L343 CegarLoopForPetriNet]: 91 programPoint places, -8 predicate places. [2021-04-29 01:08:23,856 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:08:23,856 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 11 transitions, 23 flow [2021-04-29 01:08:23,856 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 11 transitions, 23 flow [2021-04-29 01:08:23,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 13 places, 11 transitions, 23 flow [2021-04-29 01:08:23,859 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-04-29 01:08:23,859 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:08:23,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 26 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 01:08:23,859 INFO L146 LiptonReduction]: Number of co-enabled transitions 28 [2021-04-29 01:08:23,860 INFO L158 LiptonReduction]: Checked pairs total: 14 [2021-04-29 01:08:23,861 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:08:23,861 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-04-29 01:08:23,862 INFO L480 AbstractCegarLoop]: Abstraction has has 13 places, 11 transitions, 23 flow [2021-04-29 01:08:23,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 259.5) internal successors, (519), 2 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:08:23,863 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:08:23,863 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 01:08:23,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 01:08:23,864 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:08:23,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:08:23,864 INFO L82 PathProgramCache]: Analyzing trace with hash 13516020, now seen corresponding path program 1 times [2021-04-29 01:08:23,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:08:23,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477462498] [2021-04-29 01:08:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:08:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:08:24,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:08:24,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 01:08:24,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:08:24,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:08:24,104 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 01:08:24,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477462498] [2021-04-29 01:08:24,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:08:24,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 01:08:24,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447931223] [2021-04-29 01:08:24,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 01:08:24,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:08:24,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 01:08:24,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 01:08:24,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 281 [2021-04-29 01:08:24,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 11 transitions, 23 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:08:24,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:08:24,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 281 [2021-04-29 01:08:24,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:08:24,156 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-04-29 01:08:24,156 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:08:24,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 78 event pairs, 0 based on Foata normal form. 5/19 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2021-04-29 01:08:24,157 INFO L132 encePairwiseOnDemand]: 275/281 looper letters, 2 selfloop transitions, 5 changer transitions 7/15 dead transitions. [2021-04-29 01:08:24,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 15 transitions, 53 flow [2021-04-29 01:08:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 01:08:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 01:08:24,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2021-04-29 01:08:24,161 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5800711743772242 [2021-04-29 01:08:24,161 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 489 transitions. [2021-04-29 01:08:24,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 489 transitions. [2021-04-29 01:08:24,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:08:24,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 489 transitions. [2021-04-29 01:08:24,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 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 01:08:24,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 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 01:08:24,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 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 01:08:24,169 INFO L185 Difference]: Start difference. First operand has 13 places, 11 transitions, 23 flow. Second operand 3 states and 489 transitions. [2021-04-29 01:08:24,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 15 transitions, 53 flow [2021-04-29 01:08:24,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 15 transitions, 53 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 01:08:24,171 INFO L241 Difference]: Finished difference. Result has 16 places, 8 transitions, 34 flow [2021-04-29 01:08:24,171 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=16, PETRI_TRANSITIONS=8} [2021-04-29 01:08:24,172 INFO L343 CegarLoopForPetriNet]: 91 programPoint places, -75 predicate places. [2021-04-29 01:08:24,172 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:08:24,172 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 8 transitions, 34 flow [2021-04-29 01:08:24,172 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 16 places, 8 transitions, 34 flow [2021-04-29 01:08:24,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 13 places, 8 transitions, 34 flow [2021-04-29 01:08:24,176 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-04-29 01:08:24,176 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:08:24,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 11 events. 0/11 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-04-29 01:08:24,176 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 01:08:24,178 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 01:08:24,178 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:08:24,178 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-04-29 01:08:24,179 INFO L480 AbstractCegarLoop]: Abstraction has has 13 places, 8 transitions, 34 flow [2021-04-29 01:08:24,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 01:08:24,180 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:08:24,180 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 01:08:24,180 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 01:08:24,181 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:08:24,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:08:24,181 INFO L82 PathProgramCache]: Analyzing trace with hash 419002344, now seen corresponding path program 1 times [2021-04-29 01:08:24,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:08:24,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190131922] [2021-04-29 01:08:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:08:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 01:08:24,231 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 01:08:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 01:08:24,254 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 01:08:24,280 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 01:08:24,280 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 01:08:24,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 01:08:24,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 01:08:24 BasicIcfg [2021-04-29 01:08:24,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 01:08:24,317 INFO L168 Benchmark]: Toolchain (without parser) took 42927.67 ms. Allocated memory was 302.0 MB in the beginning and 446.7 MB in the end (delta: 144.7 MB). Free memory was 273.8 MB in the beginning and 287.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 131.9 MB. Max. memory is 16.0 GB. [2021-04-29 01:08:24,318 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.9 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 01:08:24,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1307.35 ms. Allocated memory is still 302.0 MB. Free memory was 270.7 MB in the beginning and 167.5 MB in the end (delta: 103.2 MB). Peak memory consumption was 103.1 MB. Max. memory is 16.0 GB. [2021-04-29 01:08:24,319 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.47 ms. Allocated memory is still 302.0 MB. Free memory was 167.5 MB in the beginning and 164.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-29 01:08:24,319 INFO L168 Benchmark]: Boogie Preprocessor took 74.85 ms. Allocated memory is still 302.0 MB. Free memory was 164.4 MB in the beginning and 162.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 01:08:24,320 INFO L168 Benchmark]: RCFGBuilder took 1176.45 ms. Allocated memory is still 302.0 MB. Free memory was 162.3 MB in the beginning and 119.3 MB in the end (delta: 43.0 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.0 GB. [2021-04-29 01:08:24,320 INFO L168 Benchmark]: TraceAbstraction took 40222.01 ms. Allocated memory was 302.0 MB in the beginning and 446.7 MB in the end (delta: 144.7 MB). Free memory was 118.2 MB in the beginning and 287.7 MB in the end (delta: -169.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 01:08:24,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.9 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1307.35 ms. Allocated memory is still 302.0 MB. Free memory was 270.7 MB in the beginning and 167.5 MB in the end (delta: 103.2 MB). Peak memory consumption was 103.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 74.47 ms. Allocated memory is still 302.0 MB. Free memory was 167.5 MB in the beginning and 164.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 74.85 ms. Allocated memory is still 302.0 MB. Free memory was 164.4 MB in the beginning and 162.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1176.45 ms. Allocated memory is still 302.0 MB. Free memory was 162.3 MB in the beginning and 119.3 MB in the end (delta: 43.0 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 40222.01 ms. Allocated memory was 302.0 MB in the beginning and 446.7 MB in the end (delta: 144.7 MB). Free memory was 118.2 MB in the beginning and 287.7 MB in the end (delta: -169.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38945.8ms, 75 PlacesBefore, 91 PlacesAfterwards, 72 TransitionsBefore, 87 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 8 FixpointIterations, 149 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 194 TotalNumberOfCompositions, 591 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 438, positive: 410, positive conditional: 410, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 234, positive: 222, positive conditional: 0, positive unconditional: 222, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 234, positive: 222, positive conditional: 0, positive unconditional: 222, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 234, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 438, positive: 188, positive conditional: 188, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 234, unknown conditional: 234, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 234, Positive cache size: 222, Positive conditional cache size: 222, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3ms, 83 PlacesBefore, 13 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 234, Positive cache size: 222, Positive conditional cache size: 222, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3ms, 16 PlacesBefore, 13 PlacesAfterwards, 8 TransitionsBefore, 8 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 234, Positive cache size: 222, Positive conditional cache size: 222, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1709] 0 pdev = 1 [L1695] COND FALSE 0 !(!expression) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, t1={7:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={3:0}, pdev=2, t1={7:0}] [L1702] 1 pdev = 6 [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 83 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 40050.4ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 194.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 39092.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.3ms SsaConstructionTime, 87.9ms SatisfiabilityAnalysisTime, 200.7ms InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...