./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-memsafety/memset.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/memset.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 566f1414dafe692faf7ed7456be2d3e7d288640b ............................................................................................................................................................................................................................................................................................................................................................................ 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 17:43:01,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 17:43:01,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 17:43:01,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 17:43:01,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 17:43:01,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 17:43:01,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 17:43:01,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 17:43:01,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 17:43:01,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 17:43:01,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 17:43:01,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 17:43:01,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 17:43:01,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 17:43:01,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 17:43:01,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 17:43:01,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 17:43:01,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 17:43:01,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 17:43:01,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 17:43:01,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 17:43:01,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 17:43:01,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 17:43:01,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 17:43:01,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 17:43:01,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 17:43:01,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 17:43:01,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 17:43:01,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 17:43:01,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 17:43:01,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 17:43:01,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 17:43:01,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 17:43:01,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 17:43:01,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 17:43:01,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 17:43:01,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 17:43:01,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 17:43:01,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 17:43:01,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 17:43:01,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 17:43:01,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 17:43:01,825 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 17:43:01,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 17:43:01,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 17:43:01,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 17:43:01,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 17:43:01,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 17:43:01,828 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 17:43:01,828 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 17:43:01,829 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 17:43:01,829 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 17:43:01,830 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 17:43:01,830 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 17:43:01,830 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 17:43:01,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 17:43:01,830 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 17:43:01,831 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 17:43:01,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 17:43:01,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 17:43:01,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 17:43:01,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 17:43:01,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 17:43:01,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 17:43:01,839 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 17:43:01,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 17:43:01,840 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 17:43:01,840 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 17:43:01,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 17:43:01,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 17:43:01,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 17:43:01,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 17:43:01,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 17:43:01,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 17:43:01,843 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 17:43:01,843 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 566f1414dafe692faf7ed7456be2d3e7d288640b [2021-08-27 17:43:02,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 17:43:02,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 17:43:02,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 17:43:02,153 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 17:43:02,154 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 17:43:02,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memset.c [2021-08-27 17:43:02,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38cbd192/884f189d83a348198bd32da3b33754f8/FLAG990466637 [2021-08-27 17:43:02,665 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 17:43:02,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memset.c [2021-08-27 17:43:02,671 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38cbd192/884f189d83a348198bd32da3b33754f8/FLAG990466637 [2021-08-27 17:43:03,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d38cbd192/884f189d83a348198bd32da3b33754f8 [2021-08-27 17:43:03,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 17:43:03,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 17:43:03,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 17:43:03,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 17:43:03,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 17:43:03,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6663f5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03, skipping insertion in model container [2021-08-27 17:43:03,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 17:43:03,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 17:43:03,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 17:43:03,233 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 17:43:03,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 17:43:03,254 INFO L208 MainTranslator]: Completed translation [2021-08-27 17:43:03,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03 WrapperNode [2021-08-27 17:43:03,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 17:43:03,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 17:43:03,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 17:43:03,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 17:43:03,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 17:43:03,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 17:43:03,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 17:43:03,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 17:43:03,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 17:43:03,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 17:43:03,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 17:43:03,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 17:43:03,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (1/1) ... [2021-08-27 17:43:03,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:03,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:43:03,358 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 17:43:03,370 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 17:43:03,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 17:43:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 17:43:03,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 17:43:03,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 17:43:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 17:43:03,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 17:43:03,485 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 17:43:03,606 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 17:43:03,607 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-08-27 17:43:03,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:43:03 BoogieIcfgContainer [2021-08-27 17:43:03,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 17:43:03,612 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 17:43:03,612 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 17:43:03,615 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 17:43:03,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:43:03,616 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 05:43:03" (1/3) ... [2021-08-27 17:43:03,617 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42fe580c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 05:43:03, skipping insertion in model container [2021-08-27 17:43:03,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:43:03,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 05:43:03" (2/3) ... [2021-08-27 17:43:03,618 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42fe580c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 05:43:03, skipping insertion in model container [2021-08-27 17:43:03,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 17:43:03,619 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:43:03" (3/3) ... [2021-08-27 17:43:03,620 INFO L389 chiAutomizerObserver]: Analyzing ICFG memset.c [2021-08-27 17:43:03,669 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 17:43:03,669 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 17:43:03,670 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 17:43:03,670 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 17:43:03,670 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 17:43:03,670 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 17:43:03,670 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 17:43:03,670 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 17:43:03,685 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 17:43:03,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 17:43:03,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:43:03,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:43:03,707 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 17:43:03,708 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 17:43:03,708 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 17:43:03,708 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 17:43:03,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 17:43:03,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 17:43:03,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 17:43:03,711 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 17:43:03,711 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 17:43:03,717 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#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(80); 7#L27true call main_#t~memset~res3.base, main_#t~memset~res3.offset := #Ultimate.C_memset(main_~#cstats~0.base, main_~#cstats~0.offset, 0, 80);< 8##Ultimate.C_memsetENTRYtrue assume 1 == #valid[#ptr.base];assume #amount + #ptr.offset <= #length[#ptr.base] && 0 <= #ptr.offset; 6#$Ultimate##0true #t~loopctr5 := 0; 4#L-1-1true [2021-08-27 17:43:03,718 INFO L793 eck$LassoCheckResult]: Loop: 4#L-1-1true assume #t~loopctr5 < #amount;#t~loopctr5 := 1 + #t~loopctr5; 4#L-1-1true [2021-08-27 17:43:03,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:43:03,724 INFO L82 PathProgramCache]: Analyzing trace with hash 37284879, now seen corresponding path program 1 times [2021-08-27 17:43:03,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:43:03,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294337296] [2021-08-27 17:43:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:43:03,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:43:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:03,815 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:43:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:03,839 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:43:03,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:43:03,841 INFO L82 PathProgramCache]: Analyzing trace with hash 36, now seen corresponding path program 1 times [2021-08-27 17:43:03,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:43:03,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230199022] [2021-08-27 17:43:03,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:43:03,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:43:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:03,856 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:43:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:03,867 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:43:03,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:43:03,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1155831254, now seen corresponding path program 1 times [2021-08-27 17:43:03,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 17:43:03,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157598445] [2021-08-27 17:43:03,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 17:43:03,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 17:43:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:03,887 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 17:43:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 17:43:03,919 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 17:43:03,972 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:43:03,972 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:43:03,972 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:43:03,972 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:43:03,972 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 17:43:03,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:03,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:43:03,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:43:03,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: memset.c_Iteration1_Loop [2021-08-27 17:43:03,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:43:03,973 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:43:03,985 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 17:43:04,036 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:43:04,037 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 17:43:04,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:04,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:43:04,049 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 17:43:04,050 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 17:43:04,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 17:43:04,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 17:43:04,093 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 17:43:04,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:04,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:43:04,096 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 17:43:04,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 17:43:04,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 17:43:04,113 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 17:43:04,234 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 17:43:04,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-08-27 17:43:04,237 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 17:43:04,237 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 17:43:04,237 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 17:43:04,238 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 17:43:04,238 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 17:43:04,238 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:04,238 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 17:43:04,238 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 17:43:04,238 INFO L133 ssoRankerPreferences]: Filename of dumped script: memset.c_Iteration1_Loop [2021-08-27 17:43:04,238 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 17:43:04,238 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 17:43:04,239 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 17:43:04,299 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 17:43:04,303 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 17:43:04,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:04,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:43:04,305 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 17:43:04,306 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 17:43:04,308 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 17:43:04,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 17:43:04,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 17:43:04,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 17:43:04,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 17:43:04,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 17:43:04,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 17:43:04,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 17:43:04,339 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 17:43:04,345 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-08-27 17:43:04,345 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 17:43:04,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 17:43:04,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 17:43:04,347 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 17:43:04,348 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 17:43:04,349 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 17:43:04,349 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 17:43:04,349 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 17:43:04,350 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 17:43:04,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-08-27 17:43:04,368 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 17:43:04,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 17:43:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:43:04,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 17:43:04,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:43:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 17:43:04,463 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 17:43:04,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 17:43:04,464 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 17:43:04,484 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 17:43:04,485 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 17:43:04,531 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 17:43:04,532 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 17:43:04,534 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 17:43:04,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-08-27 17:43:04,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2021-08-27 17:43:04,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:43:04,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 1 letters. [2021-08-27 17:43:04,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:43:04,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 17:43:04,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 17:43:04,540 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2021-08-27 17:43:04,541 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:43:04,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-08-27 17:43:04,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 17:43:04,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 17:43:04,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 17:43:04,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 17:43:04,544 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:43:04,544 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:43:04,544 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 17:43:04,544 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 17:43:04,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 17:43:04,544 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 17:43:04,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 17:43:04,545 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 17:43:04,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 05:43:04 BoogieIcfgContainer [2021-08-27 17:43:04,550 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 17:43:04,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 17:43:04,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 17:43:04,550 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 17:43:04,551 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 05:43:03" (3/4) ... [2021-08-27 17:43:04,553 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 17:43:04,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 17:43:04,554 INFO L168 Benchmark]: Toolchain (without parser) took 1470.04 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.2 MB in the beginning and 44.9 MB in the end (delta: -15.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:43:04,555 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 34.5 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:43:04,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.01 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 33.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-08-27 17:43:04,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.05 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 33.9 MB in the beginning and 49.3 MB in the end (delta: -15.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 17:43:04,557 INFO L168 Benchmark]: Boogie Preprocessor took 15.34 ms. Allocated memory is still 65.0 MB. Free memory was 49.3 MB in the beginning and 48.3 MB in the end (delta: 977.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:43:04,557 INFO L168 Benchmark]: RCFGBuilder took 278.52 ms. Allocated memory is still 65.0 MB. Free memory was 48.3 MB in the beginning and 38.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 17:43:04,558 INFO L168 Benchmark]: BuchiAutomizer took 937.53 ms. Allocated memory is still 65.0 MB. Free memory was 38.2 MB in the beginning and 45.2 MB in the end (delta: -7.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 17:43:04,558 INFO L168 Benchmark]: Witness Printer took 2.95 ms. Allocated memory is still 65.0 MB. Free memory was 45.2 MB in the beginning and 44.9 MB in the end (delta: 390.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 17:43:04,561 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 34.5 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 170.01 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 33.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.05 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 33.9 MB in the beginning and 49.3 MB in the end (delta: -15.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.34 ms. Allocated memory is still 65.0 MB. Free memory was 49.3 MB in the beginning and 48.3 MB in the end (delta: 977.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 278.52 ms. Allocated memory is still 65.0 MB. Free memory was 48.3 MB in the beginning and 38.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 937.53 ms. Allocated memory is still 65.0 MB. Free memory was 38.2 MB in the beginning and 45.2 MB in the end (delta: -7.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.95 ms. Allocated memory is still 65.0 MB. Free memory was 45.2 MB in the beginning and 44.9 MB in the end (delta: 390.5 kB). Peak memory consumption was 2.1 MB. 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 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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, 12.2ms 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: 46ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 17:43:04,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...