./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/cggmp2005_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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-lit/cggmp2005_variant.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 d63924edab54dab3adf6fc30d0dae54d46ed57e9ae48bc8d03de12421cfd3603 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:29:52,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:29:52,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:29:52,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:29:52,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:29:52,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:29:52,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:29:52,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:29:52,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:29:52,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:29:52,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:29:52,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:29:52,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:29:52,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:29:52,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:29:52,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:29:52,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:29:52,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:29:52,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:29:52,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:29:52,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:29:52,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:29:52,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:29:52,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:29:52,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:29:52,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:29:52,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:29:52,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:29:52,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:29:52,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:29:52,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:29:52,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:29:52,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:29:52,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:29:52,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:29:52,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:29:52,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:29:52,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:29:52,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:29:52,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:29:52,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:29:52,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-28 09:29:52,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:29:52,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:29:52,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:29:52,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:29:52,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:29:52,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:29:52,900 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:29:52,900 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:29:52,900 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:29:52,900 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:29:52,901 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:29:52,901 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:29:52,901 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:29:52,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:29:52,901 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 09:29:52,901 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:29:52,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:29:52,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 09:29:52,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:29:52,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:29:52,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:29:52,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:29:52,902 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 09:29:52,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:29:52,903 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:29:52,903 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:29:52,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:29:52,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:29:52,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:29:52,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:29:52,904 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:29:52,905 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:29:52,905 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d63924edab54dab3adf6fc30d0dae54d46ed57e9ae48bc8d03de12421cfd3603 [2021-12-28 09:29:53,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:29:53,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:29:53,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:29:53,189 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:29:53,189 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:29:53,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2021-12-28 09:29:53,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3959c51ff/fecbee7f2fd64536b19c91b80ab9cf15/FLAG52baed645 [2021-12-28 09:29:53,596 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:29:53,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2021-12-28 09:29:53,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3959c51ff/fecbee7f2fd64536b19c91b80ab9cf15/FLAG52baed645 [2021-12-28 09:29:53,614 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3959c51ff/fecbee7f2fd64536b19c91b80ab9cf15 [2021-12-28 09:29:53,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:29:53,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:29:53,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:29:53,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:29:53,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:29:53,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccf71e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53, skipping insertion in model container [2021-12-28 09:29:53,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:29:53,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:29:53,734 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-lit/cggmp2005_variant.i[895,908] [2021-12-28 09:29:53,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:29:53,749 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:29:53,760 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-lit/cggmp2005_variant.i[895,908] [2021-12-28 09:29:53,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:29:53,796 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:29:53,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53 WrapperNode [2021-12-28 09:29:53,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:29:53,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:29:53,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:29:53,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:29:53,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,826 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-12-28 09:29:53,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:29:53,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:29:53,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:29:53,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:29:53,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:29:53,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:29:53,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:29:53,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:29:53,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (1/1) ... [2021-12-28 09:29:53,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:53,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:53,880 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) [2021-12-28 09:29:53,904 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 [2021-12-28 09:29:53,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 09:29:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 09:29:53,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:29:53,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:29:53,964 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:29:53,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:29:54,070 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:29:54,074 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:29:54,076 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 09:29:54,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:29:54 BoogieIcfgContainer [2021-12-28 09:29:54,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:29:54,079 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:29:54,079 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:29:54,081 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:29:54,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:29:54,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:29:53" (1/3) ... [2021-12-28 09:29:54,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41d1efa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:29:54, skipping insertion in model container [2021-12-28 09:29:54,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:29:54,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:29:53" (2/3) ... [2021-12-28 09:29:54,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41d1efa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:29:54, skipping insertion in model container [2021-12-28 09:29:54,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:29:54,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:29:54" (3/3) ... [2021-12-28 09:29:54,085 INFO L388 chiAutomizerObserver]: Analyzing ICFG cggmp2005_variant.i [2021-12-28 09:29:54,123 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:29:54,123 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:29:54,123 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:29:54,123 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:29:54,123 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:29:54,124 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:29:54,124 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:29:54,124 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:29:54,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) 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) [2021-12-28 09:29:54,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-28 09:29:54,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:29:54,158 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:29:54,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-28 09:29:54,161 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-28 09:29:54,161 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:29:54,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) 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) [2021-12-28 09:29:54,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-28 09:29:54,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:29:54,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:29:54,164 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-28 09:29:54,164 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-28 09:29:54,169 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;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_~lo~0#1, main_~mid~0#1, main_~hi~0#1;havoc main_~lo~0#1;havoc main_~mid~0#1;havoc main_~hi~0#1;main_~lo~0#1 := 0;main_~mid~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 8#L28true assume !!(main_~mid~0#1 > 0 && main_~mid~0#1 <= 1000000);main_~hi~0#1 := 2 * main_~mid~0#1; 4#L30-2true [2021-12-28 09:29:54,169 INFO L793 eck$LassoCheckResult]: Loop: 4#L30-2true assume !!(main_~mid~0#1 > 0);main_~lo~0#1 := 1 + main_~lo~0#1;main_~hi~0#1 := main_~hi~0#1 - 1;main_~mid~0#1 := main_~mid~0#1 - 1; 4#L30-2true [2021-12-28 09:29:54,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:29:54,173 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-28 09:29:54,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:29:54,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431049395] [2021-12-28 09:29:54,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:29:54,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:29:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:54,235 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:29:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:54,252 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:29:54,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:29:54,255 INFO L85 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2021-12-28 09:29:54,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:29:54,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315740547] [2021-12-28 09:29:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:29:54,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:29:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:54,264 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:29:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:54,276 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:29:54,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:29:54,278 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2021-12-28 09:29:54,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:29:54,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828882079] [2021-12-28 09:29:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:29:54,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:29:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:54,295 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:29:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:29:54,309 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:29:54,390 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:29:54,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:29:54,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:29:54,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:29:54,391 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-28 09:29:54,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:54,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:29:54,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:29:54,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005_variant.i_Iteration1_Loop [2021-12-28 09:29:54,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:29:54,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:29:54,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:54,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:54,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:54,490 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:29:54,491 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-28 09:29:54,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:54,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:54,494 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) [2021-12-28 09:29:54,496 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 [2021-12-28 09:29:54,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:29:54,498 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:29:54,536 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 [2021-12-28 09:29:54,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:54,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:54,537 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) [2021-12-28 09:29:54,538 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 [2021-12-28 09:29:54,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-28 09:29:54,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:29:54,569 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-28 09:29:54,569 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~lo~0#1=0} Honda state: {ULTIMATE.start_main_~lo~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~lo~0#1=6}, {ULTIMATE.start_main_~lo~0#1=0}, {ULTIMATE.start_main_~lo~0#1=-5}] Lambdas: [1, 4, 1] Nus: [0, 0] [2021-12-28 09:29:54,587 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 [2021-12-28 09:29:54,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:54,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:54,603 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) [2021-12-28 09:29:54,606 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 [2021-12-28 09:29:54,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-28 09:29:54,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:29:54,648 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 [2021-12-28 09:29:54,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:54,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:54,650 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) [2021-12-28 09:29:54,651 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 [2021-12-28 09:29:54,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-28 09:29:54,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-28 09:29:54,684 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-28 09:29:54,693 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 [2021-12-28 09:29:54,694 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:29:54,694 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:29:54,694 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:29:54,694 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:29:54,694 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:29:54,694 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:54,694 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:29:54,694 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:29:54,694 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005_variant.i_Iteration1_Loop [2021-12-28 09:29:54,694 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:29:54,694 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:29:54,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:54,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:54,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:29:54,757 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:29:54,760 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:29:54,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:54,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:54,775 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) [2021-12-28 09:29:54,777 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 [2021-12-28 09:29:54,778 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 [2021-12-28 09:29:54,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:29:54,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:29:54,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:29:54,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:29:54,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:29:54,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:29:54,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:29:54,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:29:54,825 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 [2021-12-28 09:29:54,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:54,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:54,827 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) [2021-12-28 09:29:54,828 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 [2021-12-28 09:29:54,829 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 [2021-12-28 09:29:54,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:29:54,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:29:54,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:29:54,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:29:54,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:29:54,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:29:54,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:29:54,855 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:29:54,858 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-28 09:29:54,858 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-28 09:29:54,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:29:54,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:29:54,861 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) [2021-12-28 09:29:54,869 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:29:54,869 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-28 09:29:54,869 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:29:54,870 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~mid~0#1) = 1*ULTIMATE.start_main_~mid~0#1 Supporting invariants [] [2021-12-28 09:29:54,885 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 [2021-12-28 09:29:54,888 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 [2021-12-28 09:29:54,891 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-28 09:29:54,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:29:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:29:54,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 09:29:54,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:29:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:29:54,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 09:29:54,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:29:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:29:54,964 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-28 09:29:54,965 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-12-28 09:29:54,995 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) 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). Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 29 states and 34 transitions. Complement of second has 5 states. [2021-12-28 09:29:54,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-28 09:29:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-12-28 09:29:55,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2021-12-28 09:29:55,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 1 letters. [2021-12-28 09:29:55,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:29:55,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 4 letters. Loop has 1 letters. [2021-12-28 09:29:55,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:29:55,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-28 09:29:55,006 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:29:55,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2021-12-28 09:29:55,010 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:29:55,012 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2021-12-28 09:29:55,012 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-28 09:29:55,012 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-28 09:29:55,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-28 09:29:55,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:29:55,013 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:29:55,013 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:29:55,013 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:29:55,013 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:29:55,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-28 09:29:55,014 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:29:55,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-28 09:29:55,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:29:55 BoogieIcfgContainer [2021-12-28 09:29:55,020 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:29:55,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:29:55,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:29:55,021 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:29:55,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:29:54" (3/4) ... [2021-12-28 09:29:55,025 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 09:29:55,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:29:55,026 INFO L158 Benchmark]: Toolchain (without parser) took 1407.55ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 35.4MB in the beginning and 39.6MB in the end (delta: -4.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-12-28 09:29:55,026 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:29:55,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.62ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 40.9MB in the end (delta: -5.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-28 09:29:55,031 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.98ms. Allocated memory is still 56.6MB. Free memory was 40.9MB in the beginning and 39.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:29:55,032 INFO L158 Benchmark]: Boogie Preprocessor took 24.80ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 38.5MB in the end (delta: 951.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:29:55,033 INFO L158 Benchmark]: RCFGBuilder took 226.10ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 30.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 09:29:55,033 INFO L158 Benchmark]: BuchiAutomizer took 940.91ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 30.1MB in the beginning and 40.0MB in the end (delta: -9.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-12-28 09:29:55,034 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 73.4MB. Free memory was 40.0MB in the beginning and 39.6MB in the end (delta: 455.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:29:55,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.62ms. Allocated memory is still 56.6MB. Free memory was 35.3MB in the beginning and 40.9MB in the end (delta: -5.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.98ms. Allocated memory is still 56.6MB. Free memory was 40.9MB in the beginning and 39.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.80ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 38.5MB in the end (delta: 951.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 226.10ms. Allocated memory is still 56.6MB. Free memory was 38.5MB in the beginning and 30.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 940.91ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 30.1MB in the beginning and 40.0MB in the end (delta: -9.9MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 73.4MB. Free memory was 40.0MB in the beginning and 39.6MB in the end (delta: 455.5kB). 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 mid and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 12 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 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! [2021-12-28 09:29:55,066 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 [2021-12-28 09:29:55,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE