./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/cstrcpy-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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/array-memsafety/cstrcpy-alloca-1.i -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 fa78fde783b634840a8dd117d9f71a3fa4064d7e1622444edf74e6b44f549a34 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:40:34,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:40:34,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:40:34,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:40:34,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:40:34,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:40:34,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:40:34,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:40:34,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:40:34,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:40:34,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:40:34,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:40:34,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:40:34,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:40:34,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:40:34,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:40:34,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:40:34,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:40:34,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:40:35,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:40:35,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:40:35,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:40:35,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:40:35,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:40:35,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:40:35,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:40:35,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:40:35,016 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:40:35,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:40:35,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:40:35,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:40:35,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:40:35,018 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:40:35,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:40:35,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:40:35,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:40:35,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:40:35,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:40:35,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:40:35,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:40:35,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:40:35,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:40:35,051 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:40:35,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:40:35,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:40:35,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:40:35,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:40:35,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:40:35,053 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:40:35,053 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:40:35,053 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:40:35,053 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:40:35,054 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:40:35,054 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:40:35,054 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:40:35,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:40:35,054 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:40:35,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:40:35,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:40:35,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:40:35,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:40:35,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:40:35,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:40:35,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:40:35,056 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:40:35,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:40:35,056 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:40:35,056 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:40:35,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:40:35,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:40:35,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:40:35,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:40:35,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:40:35,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:40:35,058 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:40:35,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa78fde783b634840a8dd117d9f71a3fa4064d7e1622444edf74e6b44f549a34 [2021-12-22 20:40:35,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:40:35,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:40:35,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:40:35,337 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:40:35,337 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:40:35,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/cstrcpy-alloca-1.i [2021-12-22 20:40:35,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3cbc4d61/1189660f612649fca6f97560f156faf6/FLAG0ce3e163a [2021-12-22 20:40:35,785 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:40:35,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/cstrcpy-alloca-1.i [2021-12-22 20:40:35,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3cbc4d61/1189660f612649fca6f97560f156faf6/FLAG0ce3e163a [2021-12-22 20:40:36,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3cbc4d61/1189660f612649fca6f97560f156faf6 [2021-12-22 20:40:36,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:40:36,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:40:36,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:40:36,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:40:36,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:40:36,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@196c5e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36, skipping insertion in model container [2021-12-22 20:40:36,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:40:36,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:40:36,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:40:36,570 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:40:36,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:40:36,662 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:40:36,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36 WrapperNode [2021-12-22 20:40:36,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:40:36,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:40:36,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:40:36,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:40:36,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,712 INFO L137 Inliner]: procedures = 117, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2021-12-22 20:40:36,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:40:36,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:40:36,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:40:36,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:40:36,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:40:36,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:40:36,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:40:36,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:40:36,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (1/1) ... [2021-12-22 20:40:36,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:36,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:36,780 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) [2021-12-22 20:40:36,795 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 [2021-12-22 20:40:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 20:40:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 20:40:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 20:40:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 20:40:36,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:40:36,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:40:36,975 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:40:36,976 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:40:37,142 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:40:37,146 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:40:37,147 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-22 20:40:37,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:40:37 BoogieIcfgContainer [2021-12-22 20:40:37,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:40:37,149 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:40:37,149 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:40:37,151 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:40:37,151 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:40:37,152 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:40:36" (1/3) ... [2021-12-22 20:40:37,153 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b4f8591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:40:37, skipping insertion in model container [2021-12-22 20:40:37,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:40:37,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:40:36" (2/3) ... [2021-12-22 20:40:37,167 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4b4f8591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:40:37, skipping insertion in model container [2021-12-22 20:40:37,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:40:37,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:40:37" (3/3) ... [2021-12-22 20:40:37,169 INFO L388 chiAutomizerObserver]: Analyzing ICFG cstrcpy-alloca-1.i [2021-12-22 20:40:37,200 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:40:37,200 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:40:37,201 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:40:37,201 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:40:37,201 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:40:37,201 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:40:37,201 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:40:37,201 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:40:37,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:37,233 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-22 20:40:37,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:40:37,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:40:37,238 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-22 20:40:37,238 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-22 20:40:37,238 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:40:37,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:37,240 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-22 20:40:37,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:40:37,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:40:37,241 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-22 20:40:37,241 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-22 20:40:37,246 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 3#L525true assume !(main_~length1~0#1 < 1); 11#L525-2true assume !(main_~length2~0#1 < 1); 16#L528-1true assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 5#L535-3true [2021-12-22 20:40:37,248 INFO L793 eck$LassoCheckResult]: Loop: 5#L535-3true assume !!(main_~i~0#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet10#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 7#L535-2true main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 5#L535-3true [2021-12-22 20:40:37,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:37,256 INFO L85 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2021-12-22 20:40:37,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:37,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916932535] [2021-12-22 20:40:37,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:37,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:37,359 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:37,410 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:37,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:37,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1827, now seen corresponding path program 1 times [2021-12-22 20:40:37,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:37,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244579226] [2021-12-22 20:40:37,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:37,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:37,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:37,453 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:37,463 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:37,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:37,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1806939692, now seen corresponding path program 1 times [2021-12-22 20:40:37,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:37,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597671823] [2021-12-22 20:40:37,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:37,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:37,511 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:37,553 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:37,898 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:40:37,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:40:37,899 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:40:37,899 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:40:37,899 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 20:40:37,899 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:37,900 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:40:37,900 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:40:37,900 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcpy-alloca-1.i_Iteration1_Lasso [2021-12-22 20:40:37,900 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:40:37,900 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:40:37,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:38,299 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 20:40:38,302 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 20:40:38,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:38,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:38,312 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) [2021-12-22 20:40:38,313 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 [2021-12-22 20:40:38,317 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 [2021-12-22 20:40:38,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:38,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:38,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:38,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:38,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:38,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:38,358 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 20:40:38,406 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-22 20:40:38,407 INFO L444 ModelExtractionUtils]: 8 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-12-22 20:40:38,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:38,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:38,421 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) [2021-12-22 20:40:38,458 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 [2021-12-22 20:40:38,458 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 20:40:38,488 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-22 20:40:38,489 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 20:40:38,489 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~length1~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_~nondetString~0#1.base)_1 + 1*ULTIMATE.start_main_~length1~0#1 + 1*ULTIMATE.start_main_~nondetString~0#1.offset >= 0] [2021-12-22 20:40:38,517 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 [2021-12-22 20:40:38,532 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2021-12-22 20:40:38,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:40:38,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-22 20:40:38,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:40:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:40:38,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-22 20:40:38,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:40:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:40:38,648 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 [2021-12-22 20:40:38,649 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:38,701 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 36 states and 47 transitions. Complement of second has 7 states. [2021-12-22 20:40:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 20:40:38,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:38,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2021-12-22 20:40:38,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-22 20:40:38,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:40:38,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-22 20:40:38,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:40:38,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-22 20:40:38,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:40:38,709 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2021-12-22 20:40:38,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-22 20:40:38,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 11 states and 15 transitions. [2021-12-22 20:40:38,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-22 20:40:38,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-22 20:40:38,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2021-12-22 20:40:38,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:40:38,715 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-12-22 20:40:38,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2021-12-22 20:40:38,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-22 20:40:38,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:38,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2021-12-22 20:40:38,731 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-12-22 20:40:38,732 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-12-22 20:40:38,732 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:40:38,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2021-12-22 20:40:38,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-22 20:40:38,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:40:38,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:40:38,733 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:40:38,733 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-22 20:40:38,733 INFO L791 eck$LassoCheckResult]: Stem: 138#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 139#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 132#L525 assume !(main_~length1~0#1 < 1); 133#L525-2 assume !(main_~length2~0#1 < 1); 142#L528-1 assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 134#L535-3 assume !(main_~i~0#1 < main_~length2~0#1 - 1); 135#L535-4 call write~int(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcpy } true;cstrcpy_#in~s1#1.base, cstrcpy_#in~s1#1.offset, cstrcpy_#in~s2#1.base, cstrcpy_#in~s2#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc cstrcpy_#res#1.base, cstrcpy_#res#1.offset;havoc cstrcpy_#t~post2#1.base, cstrcpy_#t~post2#1.offset, cstrcpy_#t~post3#1.base, cstrcpy_#t~post3#1.offset, cstrcpy_#t~mem4#1, cstrcpy_~s1#1.base, cstrcpy_~s1#1.offset, cstrcpy_~s2#1.base, cstrcpy_~s2#1.offset, cstrcpy_~dst~0#1.base, cstrcpy_~dst~0#1.offset, cstrcpy_~src~0#1.base, cstrcpy_~src~0#1.offset;cstrcpy_~s1#1.base, cstrcpy_~s1#1.offset := cstrcpy_#in~s1#1.base, cstrcpy_#in~s1#1.offset;cstrcpy_~s2#1.base, cstrcpy_~s2#1.offset := cstrcpy_#in~s2#1.base, cstrcpy_#in~s2#1.offset;cstrcpy_~dst~0#1.base, cstrcpy_~dst~0#1.offset := cstrcpy_~s1#1.base, cstrcpy_~s1#1.offset;cstrcpy_~src~0#1.base, cstrcpy_~src~0#1.offset := cstrcpy_~s2#1.base, cstrcpy_~s2#1.offset; 140#L518-3 [2021-12-22 20:40:38,733 INFO L793 eck$LassoCheckResult]: Loop: 140#L518-3 cstrcpy_#t~post2#1.base, cstrcpy_#t~post2#1.offset := cstrcpy_~dst~0#1.base, cstrcpy_~dst~0#1.offset;cstrcpy_~dst~0#1.base, cstrcpy_~dst~0#1.offset := cstrcpy_#t~post2#1.base, 1 + cstrcpy_#t~post2#1.offset;cstrcpy_#t~post3#1.base, cstrcpy_#t~post3#1.offset := cstrcpy_~src~0#1.base, cstrcpy_~src~0#1.offset;cstrcpy_~src~0#1.base, cstrcpy_~src~0#1.offset := cstrcpy_#t~post3#1.base, 1 + cstrcpy_#t~post3#1.offset;call cstrcpy_#t~mem4#1 := read~int(cstrcpy_#t~post3#1.base, cstrcpy_#t~post3#1.offset, 1);call write~int(cstrcpy_#t~mem4#1, cstrcpy_#t~post2#1.base, cstrcpy_#t~post2#1.offset, 1); 141#L518-1 assume !!(0 != cstrcpy_#t~mem4#1);havoc cstrcpy_#t~post2#1.base, cstrcpy_#t~post2#1.offset;havoc cstrcpy_#t~post3#1.base, cstrcpy_#t~post3#1.offset;havoc cstrcpy_#t~mem4#1; 140#L518-3 [2021-12-22 20:40:38,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:38,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1806939634, now seen corresponding path program 1 times [2021-12-22 20:40:38,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:38,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186491624] [2021-12-22 20:40:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:38,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:38,769 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:38,805 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:38,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:38,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2182, now seen corresponding path program 1 times [2021-12-22 20:40:38,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:38,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504864519] [2021-12-22 20:40:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:38,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:38,819 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:38,831 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:38,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:38,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1302201911, now seen corresponding path program 1 times [2021-12-22 20:40:38,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:38,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058682394] [2021-12-22 20:40:38,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:38,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:40:38,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:40:38,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:40:38,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058682394] [2021-12-22 20:40:38,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058682394] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:40:38,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:40:38,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:40:38,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240933999] [2021-12-22 20:40:38,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:40:39,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:40:39,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 20:40:39,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 20:40:39,137 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. cyclomatic complexity: 6 Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:39,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:40:39,540 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-12-22 20:40:39,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 20:40:39,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-12-22 20:40:39,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-22 20:40:39,542 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 15 transitions. [2021-12-22 20:40:39,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-22 20:40:39,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-12-22 20:40:39,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-12-22 20:40:39,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:40:39,542 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-22 20:40:39,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-12-22 20:40:39,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-12-22 20:40:39,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:39,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-12-22 20:40:39,543 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-12-22 20:40:39,543 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-12-22 20:40:39,543 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 20:40:39,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-12-22 20:40:39,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-22 20:40:39,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:40:39,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:40:39,544 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:40:39,544 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-22 20:40:39,544 INFO L791 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 182#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~malloc7#1.base, main_#t~malloc7#1.offset, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~nondet10#1, main_#t~post9#1, main_~i~0#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length1~0#1, main_~length2~0#1, main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length1~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~length2~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 175#L525 assume !(main_~length1~0#1 < 1); 176#L525-2 assume !(main_~length2~0#1 < 1); 185#L528-1 assume !(main_~length1~0#1 < main_~length2~0#1);call main_#t~malloc7#1.base, main_#t~malloc7#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset := main_#t~malloc7#1.base, main_#t~malloc7#1.offset;call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~length2~0#1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;main_~i~0#1 := 0; 177#L535-3 assume !!(main_~i~0#1 < main_~length2~0#1 - 1);call write~int(main_#t~nondet10#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet10#1; 178#L535-2 main_#t~post9#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post9#1;havoc main_#t~post9#1; 179#L535-3 assume !(main_~i~0#1 < main_~length2~0#1 - 1); 180#L535-4 call write~int(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length2~0#1 - 1), 1);assume { :begin_inline_cstrcpy } true;cstrcpy_#in~s1#1.base, cstrcpy_#in~s1#1.offset, cstrcpy_#in~s2#1.base, cstrcpy_#in~s2#1.offset := main_~nondetArea~0#1.base, main_~nondetArea~0#1.offset, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;havoc cstrcpy_#res#1.base, cstrcpy_#res#1.offset;havoc cstrcpy_#t~post2#1.base, cstrcpy_#t~post2#1.offset, cstrcpy_#t~post3#1.base, cstrcpy_#t~post3#1.offset, cstrcpy_#t~mem4#1, cstrcpy_~s1#1.base, cstrcpy_~s1#1.offset, cstrcpy_~s2#1.base, cstrcpy_~s2#1.offset, cstrcpy_~dst~0#1.base, cstrcpy_~dst~0#1.offset, cstrcpy_~src~0#1.base, cstrcpy_~src~0#1.offset;cstrcpy_~s1#1.base, cstrcpy_~s1#1.offset := cstrcpy_#in~s1#1.base, cstrcpy_#in~s1#1.offset;cstrcpy_~s2#1.base, cstrcpy_~s2#1.offset := cstrcpy_#in~s2#1.base, cstrcpy_#in~s2#1.offset;cstrcpy_~dst~0#1.base, cstrcpy_~dst~0#1.offset := cstrcpy_~s1#1.base, cstrcpy_~s1#1.offset;cstrcpy_~src~0#1.base, cstrcpy_~src~0#1.offset := cstrcpy_~s2#1.base, cstrcpy_~s2#1.offset; 183#L518-3 [2021-12-22 20:40:39,546 INFO L793 eck$LassoCheckResult]: Loop: 183#L518-3 cstrcpy_#t~post2#1.base, cstrcpy_#t~post2#1.offset := cstrcpy_~dst~0#1.base, cstrcpy_~dst~0#1.offset;cstrcpy_~dst~0#1.base, cstrcpy_~dst~0#1.offset := cstrcpy_#t~post2#1.base, 1 + cstrcpy_#t~post2#1.offset;cstrcpy_#t~post3#1.base, cstrcpy_#t~post3#1.offset := cstrcpy_~src~0#1.base, cstrcpy_~src~0#1.offset;cstrcpy_~src~0#1.base, cstrcpy_~src~0#1.offset := cstrcpy_#t~post3#1.base, 1 + cstrcpy_#t~post3#1.offset;call cstrcpy_#t~mem4#1 := read~int(cstrcpy_#t~post3#1.base, cstrcpy_#t~post3#1.offset, 1);call write~int(cstrcpy_#t~mem4#1, cstrcpy_#t~post2#1.base, cstrcpy_#t~post2#1.offset, 1); 184#L518-1 assume !!(0 != cstrcpy_#t~mem4#1);havoc cstrcpy_#t~post2#1.base, cstrcpy_#t~post2#1.offset;havoc cstrcpy_#t~post3#1.base, cstrcpy_#t~post3#1.offset;havoc cstrcpy_#t~mem4#1; 183#L518-3 [2021-12-22 20:40:39,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:39,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1302257236, now seen corresponding path program 1 times [2021-12-22 20:40:39,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:39,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031151] [2021-12-22 20:40:39,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:39,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:39,570 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:39,597 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:39,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:39,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2182, now seen corresponding path program 2 times [2021-12-22 20:40:39,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:39,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89246621] [2021-12-22 20:40:39,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:39,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:39,608 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:39,616 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:39,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:39,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1633721881, now seen corresponding path program 1 times [2021-12-22 20:40:39,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:40:39,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639151517] [2021-12-22 20:40:39,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:40:39,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:40:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:39,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:40:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:40:39,666 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:40:39,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:40,421 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:40:40,422 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:40:40,422 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:40:40,422 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:40:40,422 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 20:40:40,422 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:40,422 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:40:40,422 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:40:40,423 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcpy-alloca-1.i_Iteration3_Lasso [2021-12-22 20:40:40,423 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:40:40,423 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:40:40,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:40,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:40:42,112 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 20:40:42,112 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 20:40:42,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,132 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) [2021-12-22 20:40:42,133 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 [2021-12-22 20:40:42,136 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 [2021-12-22 20:40:42,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:40:42,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:42,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:40:42,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:40:42,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:42,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,177 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) [2021-12-22 20:40:42,178 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 [2021-12-22 20:40:42,180 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 [2021-12-22 20:40:42,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:40:42,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:42,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:40:42,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:40:42,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,231 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 [2021-12-22 20:40:42,232 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,239 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) [2021-12-22 20:40:42,240 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 [2021-12-22 20:40:42,241 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 [2021-12-22 20:40:42,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:40:42,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:42,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:40:42,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:40:42,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,330 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 [2021-12-22 20:40:42,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,335 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) [2021-12-22 20:40:42,349 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 [2021-12-22 20:40:42,355 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 [2021-12-22 20:40:42,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:42,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:42,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:42,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,398 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 [2021-12-22 20:40:42,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,413 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) [2021-12-22 20:40:42,415 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 [2021-12-22 20:40:42,417 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 [2021-12-22 20:40:42,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,424 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-22 20:40:42,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,443 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-12-22 20:40:42,443 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-12-22 20:40:42,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:42,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,510 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) [2021-12-22 20:40:42,513 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 [2021-12-22 20:40:42,515 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 [2021-12-22 20:40:42,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:42,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:42,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:42,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:42,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,577 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) [2021-12-22 20:40:42,589 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 [2021-12-22 20:40:42,590 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 [2021-12-22 20:40:42,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:42,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:42,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:42,609 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,627 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 [2021-12-22 20:40:42,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,629 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) [2021-12-22 20:40:42,636 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 [2021-12-22 20:40:42,636 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 [2021-12-22 20:40:42,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:42,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:42,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:42,679 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:42,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,708 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) [2021-12-22 20:40:42,710 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 [2021-12-22 20:40:42,712 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 [2021-12-22 20:40:42,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:42,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:42,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:42,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,786 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 [2021-12-22 20:40:42,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,788 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) [2021-12-22 20:40:42,791 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 [2021-12-22 20:40:42,792 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 [2021-12-22 20:40:42,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:42,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:42,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:42,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,851 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 [2021-12-22 20:40:42,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,853 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2021-12-22 20:40:42,904 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 [2021-12-22 20:40:42,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:42,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:40:42,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:42,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:42,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:42,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:40:42,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:40:42,926 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:40:42,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-22 20:40:42,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:42,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:42,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:42,972 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2021-12-22 20:40:42,995 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 [2021-12-22 20:40:43,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:40:43,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:40:43,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:40:43,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:40:43,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-22 20:40:43,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-22 20:40:43,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-22 20:40:43,038 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 20:40:43,086 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-12-22 20:40:43,086 INFO L444 ModelExtractionUtils]: 32 out of 52 variables were initially zero. Simplification set additionally 17 variables to zero. [2021-12-22 20:40:43,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:40:43,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:40:43,103 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2021-12-22 20:40:43,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-22 20:40:43,152 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 20:40:43,173 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-22 20:40:43,173 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 20:40:43,173 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcpy_~src~0#1.offset, v_rep(select #length ULTIMATE.start_cstrcpy_~dst~0#1.base)_1) = -1*ULTIMATE.start_cstrcpy_~src~0#1.offset + 1*v_rep(select #length ULTIMATE.start_cstrcpy_~dst~0#1.base)_1 Supporting invariants [] [2021-12-22 20:40:43,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:43,249 INFO L297 tatePredicateManager]: 13 out of 14 supporting invariants were superfluous and have been removed [2021-12-22 20:40:43,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:40:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:40:43,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-22 20:40:43,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:40:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:40:43,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-22 20:40:43,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:40:43,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:40:43,438 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-22 20:40:43,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:43,463 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 13 states and 16 transitions. Complement of second has 5 states. [2021-12-22 20:40:43,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-22 20:40:43,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:40:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-22 20:40:43,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2021-12-22 20:40:43,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:40:43,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2021-12-22 20:40:43,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:40:43,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2021-12-22 20:40:43,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:40:43,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2021-12-22 20:40:43,467 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 20:40:43,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2021-12-22 20:40:43,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-22 20:40:43,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-22 20:40:43,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-22 20:40:43,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:40:43,468 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 20:40:43,468 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 20:40:43,468 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 20:40:43,468 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-22 20:40:43,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-22 20:40:43,469 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 20:40:43,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-22 20:40:43,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:40:43 BoogieIcfgContainer [2021-12-22 20:40:43,475 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:40:43,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:40:43,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:40:43,477 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:40:43,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:40:37" (3/4) ... [2021-12-22 20:40:43,480 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 20:40:43,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:40:43,481 INFO L158 Benchmark]: Toolchain (without parser) took 7326.17ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 66.8MB in the beginning and 53.7MB in the end (delta: 13.1MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2021-12-22 20:40:43,484 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:40:43,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 510.23ms. Allocated memory is still 88.1MB. Free memory was 66.8MB in the beginning and 60.9MB in the end (delta: 5.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-12-22 20:40:43,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.34ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 59.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:40:43,486 INFO L158 Benchmark]: Boogie Preprocessor took 38.57ms. Allocated memory is still 88.1MB. Free memory was 59.2MB in the beginning and 57.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:40:43,487 INFO L158 Benchmark]: RCFGBuilder took 395.42ms. Allocated memory is still 88.1MB. Free memory was 57.7MB in the beginning and 47.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 20:40:43,487 INFO L158 Benchmark]: BuchiAutomizer took 6326.46ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 47.2MB in the beginning and 53.7MB in the end (delta: -6.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2021-12-22 20:40:43,492 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 121.6MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:40:43,494 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 510.23ms. Allocated memory is still 88.1MB. Free memory was 66.8MB in the beginning and 60.9MB in the end (delta: 5.9MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.34ms. Allocated memory is still 88.1MB. Free memory was 60.9MB in the beginning and 59.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.57ms. Allocated memory is still 88.1MB. Free memory was 59.2MB in the beginning and 57.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.42ms. Allocated memory is still 88.1MB. Free memory was 57.7MB in the beginning and 47.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 6326.46ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 47.2MB in the beginning and 53.7MB in the end (delta: -6.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 121.6MB. Free memory is still 53.7MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[dst] + -1 * src and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 34 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital168 mio100 ax111 hnf100 lsp84 ukn89 mio100 lsp52 div100 bol100 ite100 ukn100 eq181 hnf89 smp100 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 75ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-22 20:40:43,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-22 20:40:43,817 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