./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/id_trans.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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/loop-invgen/id_trans.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 6aaead44d7f76ddac498383f5d9663622bc4506781697c14d3a4988231066e32 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:23:07,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:23:07,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:23:07,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:23:07,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:23:07,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:23:07,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:23:07,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:23:07,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:23:07,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:23:07,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:23:07,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:23:07,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:23:07,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:23:07,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:23:07,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:23:07,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:23:07,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:23:07,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:23:07,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:23:07,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:23:07,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:23:07,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:23:07,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:23:07,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:23:07,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:23:07,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:23:07,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:23:07,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:23:07,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:23:07,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:23:07,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:23:07,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:23:07,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:23:07,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:23:07,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:23:07,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:23:07,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:23:07,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:23:07,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:23:07,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:23:07,984 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:23:08,007 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:23:08,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:23:08,008 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:23:08,008 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:23:08,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:23:08,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:23:08,010 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:23:08,010 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:23:08,010 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:23:08,010 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:23:08,011 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:23:08,011 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:23:08,011 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:23:08,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:23:08,012 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:23:08,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:23:08,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:23:08,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:23:08,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:23:08,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:23:08,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:23:08,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:23:08,013 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:23:08,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:23:08,013 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:23:08,014 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:23:08,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:23:08,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:23:08,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:23:08,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:23:08,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:23:08,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:23:08,016 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:23:08,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aaead44d7f76ddac498383f5d9663622bc4506781697c14d3a4988231066e32 [2021-12-21 22:23:08,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:23:08,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:23:08,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:23:08,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:23:08,266 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:23:08,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/id_trans.i [2021-12-21 22:23:08,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cf71d020/adfc480f15fa44e1a202e5d4d75ca328/FLAG978869c01 [2021-12-21 22:23:08,741 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:23:08,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i [2021-12-21 22:23:08,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cf71d020/adfc480f15fa44e1a202e5d4d75ca328/FLAG978869c01 [2021-12-21 22:23:09,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cf71d020/adfc480f15fa44e1a202e5d4d75ca328 [2021-12-21 22:23:09,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:23:09,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:23:09,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:23:09,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:23:09,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:23:09,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16494573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09, skipping insertion in model container [2021-12-21 22:23:09,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:23:09,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:23:09,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i[893,906] [2021-12-21 22:23:09,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:23:09,351 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:23:09,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i[893,906] [2021-12-21 22:23:09,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:23:09,377 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:23:09,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09 WrapperNode [2021-12-21 22:23:09,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:23:09,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:23:09,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:23:09,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:23:09,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,406 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2021-12-21 22:23:09,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:23:09,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:23:09,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:23:09,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:23:09,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:23:09,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:23:09,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:23:09,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:23:09,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (1/1) ... [2021-12-21 22:23:09,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:23:09,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:23:09,465 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) [2021-12-21 22:23:09,477 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 [2021-12-21 22:23:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:23:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:23:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:23:09,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:23:09,542 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:23:09,543 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:23:09,648 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:23:09,653 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:23:09,654 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 22:23:09,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:23:09 BoogieIcfgContainer [2021-12-21 22:23:09,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:23:09,656 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:23:09,656 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:23:09,673 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:23:09,674 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:23:09,674 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:23:09" (1/3) ... [2021-12-21 22:23:09,675 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30f1e07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:23:09, skipping insertion in model container [2021-12-21 22:23:09,691 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:23:09,691 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:23:09" (2/3) ... [2021-12-21 22:23:09,692 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30f1e07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:23:09, skipping insertion in model container [2021-12-21 22:23:09,692 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:23:09,692 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:23:09" (3/3) ... [2021-12-21 22:23:09,693 INFO L388 chiAutomizerObserver]: Analyzing ICFG id_trans.i [2021-12-21 22:23:09,758 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:23:09,758 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:23:09,758 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:23:09,758 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:23:09,758 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:23:09,758 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:23:09,758 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:23:09,758 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:23:09,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 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) [2021-12-21 22:23:09,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2021-12-21 22:23:09,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:23:09,809 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:23:09,814 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-21 22:23:09,815 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:23:09,815 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:23:09,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 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) [2021-12-21 22:23:09,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2021-12-21 22:23:09,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:23:09,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:23:09,819 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-21 22:23:09,819 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:23:09,828 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_~idBitLength~0#1, main_~material_length~0#1, main_~nlen~0#1, main_~j~0#1, main_~k~0#1;havoc main_~idBitLength~0#1;havoc main_~material_length~0#1;havoc main_~nlen~0#1;havoc main_~j~0#1;havoc main_~k~0#1;main_~nlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~idBitLength~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~material_length~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 6#L30true assume !!(main_~nlen~0#1 == (if main_~idBitLength~0#1 < 0 && 0 != main_~idBitLength~0#1 % 32 then 1 + main_~idBitLength~0#1 / 32 else main_~idBitLength~0#1 / 32));main_~j~0#1 := 0; 12#L31-3true [2021-12-21 22:23:09,829 INFO L793 eck$LassoCheckResult]: Loop: 12#L31-3true assume !!(main_~j~0#1 < (if main_~idBitLength~0#1 < 0 && 0 != main_~idBitLength~0#1 % 8 then 1 + main_~idBitLength~0#1 / 8 else main_~idBitLength~0#1 / 8) && main_~j~0#1 < main_~material_length~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~j~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 14#L18true assume !(0 == __VERIFIER_assert_~cond#1); 16#L18-2true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~j~0#1 < main_~material_length~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 18#L18-3true assume !(0 == __VERIFIER_assert_~cond#1); 7#L18-5true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= (if main_~j~0#1 < 0 && 0 != main_~j~0#1 % 4 then 1 + main_~j~0#1 / 4 else main_~j~0#1 / 4) then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 17#L18-6true assume !(0 == __VERIFIER_assert_~cond#1); 10#L18-8true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if (if main_~j~0#1 < 0 && 0 != main_~j~0#1 % 4 then 1 + main_~j~0#1 / 4 else main_~j~0#1 / 4) < main_~nlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 13#L18-9true assume !(0 == __VERIFIER_assert_~cond#1); 15#L18-11true assume { :end_inline___VERIFIER_assert } true; 21#L31-2true main_#t~post4#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 12#L31-3true [2021-12-21 22:23:09,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:23:09,844 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-21 22:23:09,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:23:09,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223352459] [2021-12-21 22:23:09,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:23:09,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:23:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:23:09,959 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:23:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:23:10,000 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:23:10,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:23:10,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1560846529, now seen corresponding path program 1 times [2021-12-21 22:23:10,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:23:10,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222079435] [2021-12-21 22:23:10,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:23:10,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:23:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:23:10,065 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:23:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:23:10,094 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:23:10,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:23:10,095 INFO L85 PathProgramCache]: Analyzing trace with hash 294954018, now seen corresponding path program 1 times [2021-12-21 22:23:10,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:23:10,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838457540] [2021-12-21 22:23:10,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:23:10,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:23:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:23:10,123 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:23:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:23:10,146 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:23:10,547 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:23:10,548 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:23:10,548 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:23:10,548 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:23:10,548 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 22:23:10,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:23:10,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:23:10,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:23:10,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_trans.i_Iteration1_Loop [2021-12-21 22:23:10,549 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:23:10,549 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:23:10,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:23:10,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:23:10,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:23:10,678 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:23:10,679 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 22:23:10,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:23:10,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:23:10,684 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) [2021-12-21 22:23:10,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 22:23:10,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 22:23:10,702 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 [2021-12-21 22:23:10,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-21 22:23:10,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:23:10,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:23:10,740 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) [2021-12-21 22:23:10,746 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 22:23:10,746 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 22:23:10,775 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 [2021-12-21 22:23:10,845 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 22:23:10,849 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 [2021-12-21 22:23:10,849 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 22:23:10,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 22:23:10,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 22:23:10,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 22:23:10,850 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 22:23:10,850 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:23:10,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 22:23:10,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 22:23:10,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_trans.i_Iteration1_Loop [2021-12-21 22:23:10,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 22:23:10,850 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 22:23:10,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:23:10,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:23:10,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 22:23:10,983 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 22:23:10,988 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 22:23:10,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:23:10,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:23:10,992 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) [2021-12-21 22:23:11,006 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 [2021-12-21 22:23:11,006 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 [2021-12-21 22:23:11,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:23:11,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:23:11,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:23:11,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:23:11,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:23:11,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:23:11,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:23:11,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:23:11,041 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 [2021-12-21 22:23:11,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:23:11,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:23:11,043 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) [2021-12-21 22:23:11,043 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 [2021-12-21 22:23:11,045 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 [2021-12-21 22:23:11,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:23:11,051 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:23:11,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:23:11,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:23:11,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:23:11,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:23:11,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:23:11,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 22:23:11,083 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 [2021-12-21 22:23:11,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:23:11,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:23:11,085 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) [2021-12-21 22:23:11,087 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 [2021-12-21 22:23:11,088 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 [2021-12-21 22:23:11,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 22:23:11,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 22:23:11,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 22:23:11,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 22:23:11,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 22:23:11,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 22:23:11,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 22:23:11,112 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 22:23:11,121 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-21 22:23:11,121 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-21 22:23:11,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:23:11,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:23:11,127 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) [2021-12-21 22:23:11,128 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 [2021-12-21 22:23:11,164 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 22:23:11,164 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 22:23:11,164 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 22:23:11,165 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nlen~0#1, ULTIMATE.start_main_~j~0#1) = 4*ULTIMATE.start_main_~nlen~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2021-12-21 22:23:11,181 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 [2021-12-21 22:23:11,185 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 22:23:11,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:23:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:23:11,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 22:23:11,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:23:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:23:11,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-21 22:23:11,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 22:23:11,459 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 [2021-12-21 22:23:11,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:23:11,572 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-21 22:23:11,574 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 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 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:23:11,703 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 21 states, 20 states have (on average 1.35) internal successors, (27), 20 states have internal predecessors, (27), 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 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 60 states and 74 transitions. Complement of second has 9 states. [2021-12-21 22:23:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-21 22:23:11,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:23:11,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 52 transitions. [2021-12-21 22:23:11,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 52 transitions. Stem has 3 letters. Loop has 10 letters. [2021-12-21 22:23:11,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:23:11,714 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 52 transitions. Stem has 13 letters. Loop has 10 letters. [2021-12-21 22:23:11,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:23:11,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 52 transitions. Stem has 3 letters. Loop has 20 letters. [2021-12-21 22:23:11,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 22:23:11,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 74 transitions. [2021-12-21 22:23:11,719 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:23:11,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 0 states and 0 transitions. [2021-12-21 22:23:11,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 22:23:11,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 22:23:11,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 22:23:11,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:23:11,723 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:23:11,723 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:23:11,723 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 22:23:11,723 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:23:11,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 22:23:11,723 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 22:23:11,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 22:23:11,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:23:11 BoogieIcfgContainer [2021-12-21 22:23:11,730 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:23:11,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:23:11,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:23:11,732 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:23:11,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:23:09" (3/4) ... [2021-12-21 22:23:11,734 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 22:23:11,735 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:23:11,735 INFO L158 Benchmark]: Toolchain (without parser) took 2575.31ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 69.0MB in the beginning and 68.3MB in the end (delta: 649.3kB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2021-12-21 22:23:11,736 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:23:11,736 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.23ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 74.0MB in the end (delta: -5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:23:11,737 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.47ms. Allocated memory is still 96.5MB. Free memory was 74.0MB in the beginning and 72.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:23:11,737 INFO L158 Benchmark]: Boogie Preprocessor took 16.74ms. Allocated memory is still 96.5MB. Free memory was 72.7MB in the beginning and 71.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:23:11,737 INFO L158 Benchmark]: RCFGBuilder took 230.54ms. Allocated memory is still 96.5MB. Free memory was 71.3MB in the beginning and 62.3MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 22:23:11,738 INFO L158 Benchmark]: BuchiAutomizer took 2073.88ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 61.9MB in the beginning and 69.1MB in the end (delta: -7.2MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2021-12-21 22:23:11,738 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 68.3MB in the end (delta: 792.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:23:11,740 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.23ms. Allocated memory is still 96.5MB. Free memory was 69.0MB in the beginning and 74.0MB in the end (delta: -5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.47ms. Allocated memory is still 96.5MB. Free memory was 74.0MB in the beginning and 72.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.74ms. Allocated memory is still 96.5MB. Free memory was 72.7MB in the beginning and 71.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 230.54ms. Allocated memory is still 96.5MB. Free memory was 71.3MB in the beginning and 62.3MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2073.88ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 61.9MB in the beginning and 69.1MB in the end (delta: -7.2MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 3.13ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 68.3MB in the end (delta: 792.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * j + 4 * nlen and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 16 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital29 mio100 ax100 hnf100 lsp79 ukn100 mio100 lsp100 div404 bol100 ite100 ukn100 eq106 hnf98 smp48 dnf100 smp100 tf104 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-21 22:23:11,778 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