./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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/termination-memory-alloca/cstrlen-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 55b7e97c43627abc3b3fb7d9c27999e540608fa7f6d0b7e81ad0fc505311daee --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:28:00,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:28:00,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:28:00,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:28:00,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:28:00,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:28:00,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:28:00,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:28:00,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:28:00,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:28:00,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:28:00,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:28:00,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:28:00,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:28:00,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:28:00,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:28:00,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:28:00,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:28:00,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:28:00,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:28:00,994 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:28:00,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:28:00,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:28:00,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:28:00,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:28:01,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:28:01,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:28:01,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:28:01,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:28:01,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:28:01,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:28:01,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:28:01,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:28:01,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:28:01,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:28:01,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:28:01,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:28:01,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:28:01,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:28:01,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:28:01,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:28:01,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:28:01,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:28:01,044 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:28:01,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:28:01,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:28:01,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:28:01,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:28:01,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:28:01,046 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:28:01,047 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:28:01,047 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:28:01,048 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:28:01,048 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:28:01,048 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:28:01,048 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:28:01,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:28:01,048 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:28:01,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:28:01,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:28:01,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:28:01,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:28:01,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:28:01,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:28:01,049 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:28:01,050 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:28:01,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:28:01,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:28:01,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:28:01,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:28:01,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:28:01,052 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:28:01,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55b7e97c43627abc3b3fb7d9c27999e540608fa7f6d0b7e81ad0fc505311daee [2022-07-23 14:28:01,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:28:01,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:28:01,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:28:01,346 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:28:01,347 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:28:01,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i [2022-07-23 14:28:01,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71a4069f4/d260cf2c142840f19188d7a5d4f95923/FLAG2d875b7a7 [2022-07-23 14:28:01,830 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:28:01,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i [2022-07-23 14:28:01,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71a4069f4/d260cf2c142840f19188d7a5d4f95923/FLAG2d875b7a7 [2022-07-23 14:28:02,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71a4069f4/d260cf2c142840f19188d7a5d4f95923 [2022-07-23 14:28:02,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:28:02,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:28:02,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:28:02,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:28:02,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:28:02,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4b61c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02, skipping insertion in model container [2022-07-23 14:28:02,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:28:02,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:28:02,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:28:02,503 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:28:02,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:28:02,572 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:28:02,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02 WrapperNode [2022-07-23 14:28:02,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:28:02,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:28:02,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:28:02,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:28:02,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,625 INFO L137 Inliner]: procedures = 111, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-07-23 14:28:02,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:28:02,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:28:02,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:28:02,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:28:02,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:28:02,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:28:02,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:28:02,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:28:02,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (1/1) ... [2022-07-23 14:28:02,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:02,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:02,691 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) [2022-07-23 14:28:02,698 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 [2022-07-23 14:28:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 14:28:02,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 14:28:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 14:28:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 14:28:02,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:28:02,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:28:02,797 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:28:02,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:28:02,888 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:28:02,893 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:28:02,893 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 14:28:02,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:28:02 BoogieIcfgContainer [2022-07-23 14:28:02,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:28:02,895 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:28:02,896 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:28:02,898 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:28:02,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:28:02,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:28:02" (1/3) ... [2022-07-23 14:28:02,903 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@428ac444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:28:02, skipping insertion in model container [2022-07-23 14:28:02,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:28:02,904 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:28:02" (2/3) ... [2022-07-23 14:28:02,904 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@428ac444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:28:02, skipping insertion in model container [2022-07-23 14:28:02,904 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:28:02,904 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:28:02" (3/3) ... [2022-07-23 14:28:02,906 INFO L354 chiAutomizerObserver]: Analyzing ICFG cstrlen-alloca-1.i [2022-07-23 14:28:02,950 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:28:02,951 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:28:02,951 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:28:02,951 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:28:02,951 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:28:02,952 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:28:02,952 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:28:02,952 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:28:02,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:28:02,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:28:02,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:28:02,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:28:02,990 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 14:28:02,990 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:28:02,991 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:28:02,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:28:02,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:28:02,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:28:02,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:28:02,993 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 14:28:02,993 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:28:02,998 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~ret6#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 5#L556true assume !(main_~length1~0#1 < 1); 6#L556-2true call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset, cstrlen_#t~mem2#1, cstrlen_~s#1.base, cstrlen_~s#1.offset, cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~s#1.base, cstrlen_~s#1.offset := cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_~s#1.base, cstrlen_~s#1.offset; 8#L550-3true [2022-07-23 14:28:02,999 INFO L754 eck$LassoCheckResult]: Loop: 8#L550-3true call cstrlen_#t~mem2#1 := read~int(cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset, 1); 10#L550-1true assume !!(0 != cstrlen_#t~mem2#1);havoc cstrlen_#t~mem2#1;cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset := cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_#t~post3#1.base, 1 + cstrlen_#t~post3#1.offset;havoc cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset; 8#L550-3true [2022-07-23 14:28:03,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:28:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2022-07-23 14:28:03,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:28:03,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586920716] [2022-07-23 14:28:03,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:28:03,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:28:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:28:03,116 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:28:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:28:03,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:28:03,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:28:03,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2022-07-23 14:28:03,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:28:03,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446432219] [2022-07-23 14:28:03,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:28:03,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:28:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:28:03,159 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:28:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:28:03,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:28:03,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:28:03,169 INFO L85 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2022-07-23 14:28:03,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:28:03,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729389602] [2022-07-23 14:28:03,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:28:03,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:28:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:28:03,200 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:28:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:28:03,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:28:03,568 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:28:03,569 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:28:03,569 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:28:03,570 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:28:03,570 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:28:03,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:03,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:28:03,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:28:03,571 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-1.i_Iteration1_Lasso [2022-07-23 14:28:03,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:28:03,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:28:03,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:03,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:28:04,169 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:28:04,173 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:28:04,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,183 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) [2022-07-23 14:28:04,197 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 [2022-07-23 14:28:04,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:28:04,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:28:04,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:28:04,222 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 [2022-07-23 14:28:04,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:28:04,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-23 14:28:04,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,252 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) [2022-07-23 14:28:04,252 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 [2022-07-23 14:28:04,254 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 [2022-07-23 14:28:04,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:28:04,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:28:04,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:28:04,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:28:04,281 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 [2022-07-23 14:28:04,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,283 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) [2022-07-23 14:28:04,287 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 [2022-07-23 14:28:04,288 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 [2022-07-23 14:28:04,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,297 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:28:04,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:28:04,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:28:04,340 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 [2022-07-23 14:28:04,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,343 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) [2022-07-23 14:28:04,349 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 [2022-07-23 14:28:04,350 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 [2022-07-23 14:28:04,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:28:04,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:28:04,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:28:04,363 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:28:04,380 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 [2022-07-23 14:28:04,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,381 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2022-07-23 14:28:04,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-23 14:28:04,384 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 [2022-07-23 14:28:04,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:28:04,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:28:04,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:28:04,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-23 14:28:04,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,435 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2022-07-23 14:28:04,446 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 [2022-07-23 14:28:04,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-23 14:28:04,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:28:04,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:28:04,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:28:04,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:28:04,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-23 14:28:04,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,474 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2022-07-23 14:28:04,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-23 14:28:04,476 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 [2022-07-23 14:28:04,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:28:04,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:28:04,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:28:04,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-23 14:28:04,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,512 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2022-07-23 14:28:04,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-23 14:28:04,515 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 [2022-07-23 14:28:04,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:28:04,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:28:04,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:28:04,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:28:04,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-23 14:28:04,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,541 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2022-07-23 14:28:04,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-23 14:28:04,544 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 [2022-07-23 14:28:04,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:28:04,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:28:04,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:28:04,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:28:04,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-23 14:28:04,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,592 INFO L229 MonitoredProcess]: Starting monitored process 11 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) [2022-07-23 14:28:04,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-23 14:28:04,598 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 [2022-07-23 14:28:04,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:28:04,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:28:04,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:28:04,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-07-23 14:28:04,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,651 INFO L229 MonitoredProcess]: Starting monitored process 12 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) [2022-07-23 14:28:04,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-23 14:28:04,653 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 [2022-07-23 14:28:04,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:28:04,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:28:04,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:28:04,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:28:04,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:28:04,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:28:04,684 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:28:04,722 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-07-23 14:28:04,722 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 8 variables to zero. [2022-07-23 14:28:04,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:28:04,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:28:04,735 INFO L229 MonitoredProcess]: Starting monitored process 13 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) [2022-07-23 14:28:04,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-23 14:28:04,803 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:28:04,823 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-23 14:28:04,823 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:28:04,824 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc5#1.base)_1, ULTIMATE.start_cstrlen_~p~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5#1.base)_1 - 1*ULTIMATE.start_cstrlen_~p~0#1.offset Supporting invariants [] [2022-07-23 14:28:04,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-23 14:28:04,878 INFO L293 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2022-07-23 14:28:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:28:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:28:04,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 14:28:04,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:28:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:28:04,972 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 14:28:04,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:28:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:28:05,061 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:28:05,062 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:28:05,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-23 14:28:05,128 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 23 transitions. Complement of second has 6 states. [2022-07-23 14:28:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-23 14:28:05,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:28:05,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-07-23 14:28:05,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-23 14:28:05,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:28:05,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 2 letters. [2022-07-23 14:28:05,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:28:05,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 4 letters. [2022-07-23 14:28:05,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:28:05,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2022-07-23 14:28:05,143 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 14:28:05,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2022-07-23 14:28:05,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-23 14:28:05,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-23 14:28:05,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-23 14:28:05,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 14:28:05,146 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:28:05,146 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:28:05,146 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 14:28:05,146 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 14:28:05,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-23 14:28:05,147 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 14:28:05,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-23 14:28:05,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 02:28:05 BoogieIcfgContainer [2022-07-23 14:28:05,153 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 14:28:05,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 14:28:05,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 14:28:05,154 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 14:28:05,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:28:02" (3/4) ... [2022-07-23 14:28:05,157 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 14:28:05,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 14:28:05,160 INFO L158 Benchmark]: Toolchain (without parser) took 2947.53ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 43.6MB in the beginning and 89.3MB in the end (delta: -45.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:28:05,164 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 79.7MB. Free memory was 60.9MB in the beginning and 60.8MB in the end (delta: 92.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:28:05,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.16ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 43.4MB in the beginning and 91.4MB in the end (delta: -48.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-23 14:28:05,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.76ms. Allocated memory is still 119.5MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:28:05,167 INFO L158 Benchmark]: Boogie Preprocessor took 21.48ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 88.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:28:05,168 INFO L158 Benchmark]: RCFGBuilder took 245.78ms. Allocated memory is still 119.5MB. Free memory was 88.0MB in the beginning and 78.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 14:28:05,170 INFO L158 Benchmark]: BuchiAutomizer took 2257.52ms. Allocated memory is still 119.5MB. Free memory was 78.2MB in the beginning and 89.3MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:28:05,171 INFO L158 Benchmark]: Witness Printer took 3.72ms. Allocated memory is still 119.5MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:28:05,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 79.7MB. Free memory was 60.9MB in the beginning and 60.8MB in the end (delta: 92.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.16ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 43.4MB in the beginning and 91.4MB in the end (delta: -48.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.76ms. Allocated memory is still 119.5MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.48ms. Allocated memory is still 119.5MB. Free memory was 89.3MB in the beginning and 88.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 245.78ms. Allocated memory is still 119.5MB. Free memory was 88.0MB in the beginning and 78.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2257.52ms. Allocated memory is still 119.5MB. Free memory was 78.2MB in the beginning and 89.3MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.72ms. Allocated memory is still 119.5MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * 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 unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * p and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 6 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital113 mio100 ax115 hnf100 lsp81 ukn95 mio100 lsp46 div100 bol100 ite100 ukn100 eq189 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-23 14:28:05,210 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE