./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-memsafety/memset2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/ldv-memsafety/memset2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89c40e0e226fdcfbda8631272bf2c238348d58a6 ............................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 17:43:02,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 17:43:02,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 17:43:02,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 17:43:02,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 17:43:02,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 17:43:02,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 17:43:02,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 17:43:02,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 17:43:02,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 17:43:02,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 17:43:02,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 17:43:02,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 17:43:02,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 17:43:02,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 17:43:02,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 17:43:02,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 17:43:02,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 17:43:02,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 17:43:02,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 17:43:02,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 17:43:02,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 17:43:02,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 17:43:02,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 17:43:02,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 17:43:02,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 17:43:02,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 17:43:02,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 17:43:02,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 17:43:02,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 17:43:02,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 17:43:02,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 17:43:02,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 17:43:02,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 17:43:02,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 17:43:02,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 17:43:02,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 17:43:02,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 17:43:02,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 17:43:02,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 17:43:02,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 17:43:02,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 17:43:03,019 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 17:43:03,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 17:43:03,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 17:43:03,021 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 17:43:03,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 17:43:03,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 17:43:03,022 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 17:43:03,022 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 17:43:03,022 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 17:43:03,022 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 17:43:03,023 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 17:43:03,023 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 17:43:03,023 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 17:43:03,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 17:43:03,024 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 17:43:03,024 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 17:43:03,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 17:43:03,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 17:43:03,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 17:43:03,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 17:43:03,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 17:43:03,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 17:43:03,029 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 17:43:03,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 17:43:03,030 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 17:43:03,030 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 17:43:03,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 17:43:03,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 17:43:03,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 17:43:03,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 17:43:03,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 17:43:03,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 17:43:03,032 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 17:43:03,032 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89c40e0e226fdcfbda8631272bf2c238348d58a6 [2021-08-27 17:43:03,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 17:43:03,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 17:43:03,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 17:43:03,280 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 17:43:03,281 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 17:43:03,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memset2.c [2021-08-27 17:43:03,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740521076/6a8a1efdedeb47aa81dde86d203a1126/FLAGbbec2989d [2021-08-27 17:43:03,773 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 17:43:03,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memset2.c [2021-08-27 17:43:03,781 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740521076/6a8a1efdedeb47aa81dde86d203a1126/FLAGbbec2989d [2021-08-27 17:43:04,128 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/740521076/6a8a1efdedeb47aa81dde86d203a1126 [2021-08-27 17:43:04,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 17:43:04,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 17:43:04,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 17:43:04,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 17:43:04,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 17:43:04,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6972b127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04, skipping insertion in model container [2021-08-27 17:43:04,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 17:43:04,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 17:43:04,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 17:43:04,262 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 17:43:04,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 17:43:04,279 INFO L208 MainTranslator]: Completed translation [2021-08-27 17:43:04,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04 WrapperNode [2021-08-27 17:43:04,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 17:43:04,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 17:43:04,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 17:43:04,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 17:43:04,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 17:43:04,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 17:43:04,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 17:43:04,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 17:43:04,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 17:43:04,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 17:43:04,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 17:43:04,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 17:43:04,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (1/1) ... [2021-08-27 17:43:04,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:04,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:43:04,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 17:43:04,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 17:43:04,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 17:43:04,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 17:43:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 17:43:04,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 17:43:04,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 17:43:04,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 17:43:04,465 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 17:43:04,569 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 17:43:04,570 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-27 17:43:04,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:43:04 BoogieIcfgContainer [2021-08-27 17:43:04,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 17:43:04,573 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 17:43:04,573 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 17:43:04,575 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 17:43:04,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:43:04,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 05:43:04" (1/3) ... [2021-08-27 17:43:04,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7339fb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 05:43:04, skipping insertion in model container [2021-08-27 17:43:04,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:43:04,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:04" (2/3) ... [2021-08-27 17:43:04,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7339fb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 05:43:04, skipping insertion in model container [2021-08-27 17:43:04,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:43:04,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:43:04" (3/3) ... [2021-08-27 17:43:04,579 INFO L389 chiAutomizerObserver]: Analyzing ICFG memset2.c [2021-08-27 17:43:04,619 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 17:43:04,619 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 17:43:04,619 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 17:43:04,619 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 17:43:04,620 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 17:43:04,620 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 17:43:04,620 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 17:43:04,620 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 17:43:04,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 17:43:04,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 17:43:04,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:43:04,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:43:04,649 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 17:43:04,649 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 17:43:04,649 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 17:43:04,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-08-27 17:43:04,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 17:43:04,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:43:04,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:43:04,652 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 17:43:04,652 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 17:43:04,657 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~memset~res3.base, main_#t~memset~res3.offset, main_~#cstats~0.base, main_~#cstats~0.offset;call main_~#cstats~0.base, main_~#cstats~0.offset := #Ultimate.allocOnStack(40); 4#L22true call main_#t~memset~res3.base, main_#t~memset~res3.offset := #Ultimate.C_memset(main_~#cstats~0.base, main_~#cstats~0.offset, 0, 40);< 9##Ultimate.C_memsetENTRYtrue assume 1 == #valid[#ptr.base];assume #amount + #ptr.offset <= #length[#ptr.base] && 0 <= #ptr.offset; 8#$Ultimate##0true #t~loopctr5 := 0; 5#L-1-1true [2021-08-27 17:43:04,657 INFO L793 eck$LassoCheckResult]: Loop: 5#L-1-1true assume #t~loopctr5 < #amount;#t~loopctr5 := 1 + #t~loopctr5; 5#L-1-1true [2021-08-27 17:43:04,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:43:04,663 INFO L82 PathProgramCache]: Analyzing trace with hash 37284879, now seen corresponding path program 1 times [2021-08-27 17:43:04,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:43:04,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520316931] [2021-08-27 17:43:04,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:43:04,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:43:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:04,742 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:43:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:04,775 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:43:04,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:43:04,778 INFO L82 PathProgramCache]: Analyzing trace with hash 36, now seen corresponding path program 1 times [2021-08-27 17:43:04,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:43:04,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556898196] [2021-08-27 17:43:04,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:43:04,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:43:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:04,790 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:43:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:04,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:43:04,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:43:04,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1155831254, now seen corresponding path program 1 times [2021-08-27 17:43:04,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:43:04,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647946549] [2021-08-27 17:43:04,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:43:04,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:43:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:04,817 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:43:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:04,838 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:43:04,928 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:43:04,929 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:43:04,929 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:43:04,929 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:43:04,929 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 17:43:04,929 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:04,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:43:04,930 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:43:04,930 INFO L133 ssoRankerPreferences]: Filename of dumped script: memset2.c_Iteration1_Loop [2021-08-27 17:43:04,930 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:43:04,930 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:43:04,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:43:05,007 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:43:05,009 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 17:43:05,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:05,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:43:05,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 17:43:05,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 17:43:05,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 17:43:05,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 17:43:05,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-27 17:43:05,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:05,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:43:05,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 17:43:05,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 17:43:05,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 17:43:05,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 17:43:05,217 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 17:43:05,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 17:43:05,223 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:43:05,224 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:43:05,224 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:43:05,224 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:43:05,224 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:43:05,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:05,224 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:43:05,224 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:43:05,224 INFO L133 ssoRankerPreferences]: Filename of dumped script: memset2.c_Iteration1_Loop [2021-08-27 17:43:05,224 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:43:05,224 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:43:05,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 17:43:05,250 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:43:05,253 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:43:05,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:05,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:43:05,257 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 17:43:05,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 17:43:05,279 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 17:43:05,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:43:05,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:43:05,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:43:05,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:43:05,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:43:05,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:43:05,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:43:05,305 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:43:05,311 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-08-27 17:43:05,311 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 17:43:05,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:05,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:43:05,314 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 17:43:05,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 17:43:05,316 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:43:05,316 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 17:43:05,316 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:43:05,316 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(#Ultimate.C_memset_#t~loopctr5, #Ultimate.C_memset_#amount) = -1*#Ultimate.C_memset_#t~loopctr5 + 1*#Ultimate.C_memset_#amount Supporting invariants [] [2021-08-27 17:43:05,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 17:43:05,339 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 17:43:05,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:43:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:43:05,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 17:43:05,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:43:05,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 17:43:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:43:05,467 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 17:43:05,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:43:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 17:43:05,476 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-27 17:43:05,477 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 17:43:05,503 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1). Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 17 transitions. Complement of second has 6 states. [2021-08-27 17:43:05,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 17:43:05,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 17:43:05,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-08-27 17:43:05,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2021-08-27 17:43:05,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:43:05,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 1 letters. [2021-08-27 17:43:05,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:43:05,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 17:43:05,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:43:05,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2021-08-27 17:43:05,509 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:43:05,511 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-08-27 17:43:05,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 17:43:05,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 17:43:05,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 17:43:05,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:43:05,512 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:43:05,513 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:43:05,513 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:43:05,513 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 17:43:05,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 17:43:05,513 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:43:05,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 17:43:05,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 05:43:05 BoogieIcfgContainer [2021-08-27 17:43:05,517 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 17:43:05,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 17:43:05,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 17:43:05,517 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 17:43:05,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:43:04" (3/4) ... [2021-08-27 17:43:05,520 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 17:43:05,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 17:43:05,521 INFO L168 Benchmark]: Toolchain (without parser) took 1386.93 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 41.8 MB in the beginning and 52.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-08-27 17:43:05,521 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 60.8 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 59.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:43:05,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.26 ms. Allocated memory is still 60.8 MB. Free memory was 41.5 MB in the beginning and 32.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 17:43:05,522 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.80 ms. Allocated memory is still 60.8 MB. Free memory was 32.6 MB in the beginning and 31.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 17:43:05,523 INFO L168 Benchmark]: Boogie Preprocessor took 43.10 ms. Allocated memory is still 60.8 MB. Free memory was 31.3 MB in the beginning and 45.3 MB in the end (delta: -14.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 17:43:05,523 INFO L168 Benchmark]: RCFGBuilder took 228.81 ms. Allocated memory is still 60.8 MB. Free memory was 45.3 MB in the beginning and 35.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-27 17:43:05,524 INFO L168 Benchmark]: BuchiAutomizer took 944.07 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 35.1 MB in the beginning and 52.2 MB in the end (delta: -17.0 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-08-27 17:43:05,524 INFO L168 Benchmark]: Witness Printer took 2.61 ms. Allocated memory is still 79.7 MB. Free memory is still 52.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:43:05,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 60.8 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 59.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 145.26 ms. Allocated memory is still 60.8 MB. Free memory was 41.5 MB in the beginning and 32.6 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 18.80 ms. Allocated memory is still 60.8 MB. Free memory was 32.6 MB in the beginning and 31.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.10 ms. Allocated memory is still 60.8 MB. Free memory was 31.3 MB in the beginning and 45.3 MB in the end (delta: -14.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 228.81 ms. Allocated memory is still 60.8 MB. Free memory was 45.3 MB in the beginning and 35.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 944.07 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 35.1 MB in the beginning and 52.2 MB in the end (delta: -17.0 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Witness Printer took 2.61 ms. Allocated memory is still 79.7 MB. Free memory is still 52.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * aux-#t~loopctr5-aux + unknown-#amount-unknown and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 6 SDslu, 1 SDs, 0 SdLazy, 6 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 62ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 17:43:05,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...