./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/sum04-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf 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/loops/sum04-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a02f2d90df049b7a5c6a05d9dfbf37e8076efe74 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Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 02:40:33,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 02:40:33,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 02:40:34,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 02:40:34,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 02:40:34,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 02:40:34,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 02:40:34,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 02:40:34,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 02:40:34,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 02:40:34,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 02:40:34,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 02:40:34,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 02:40:34,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 02:40:34,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 02:40:34,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 02:40:34,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 02:40:34,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 02:40:34,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 02:40:34,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 02:40:34,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 02:40:34,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 02:40:34,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 02:40:34,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 02:40:34,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 02:40:34,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 02:40:34,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 02:40:34,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 02:40:34,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 02:40:34,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 02:40:34,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 02:40:34,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 02:40:34,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 02:40:34,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 02:40:34,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 02:40:34,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 02:40:34,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 02:40:34,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 02:40:34,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 02:40:34,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 02:40:34,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 02:40:34,063 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 02:40:34,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 02:40:34,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 02:40:34,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 02:40:34,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 02:40:34,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 02:40:34,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 02:40:34,089 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 02:40:34,089 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 02:40:34,089 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 02:40:34,090 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 02:40:34,090 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 02:40:34,090 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 02:40:34,091 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 02:40:34,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 02:40:34,091 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 02:40:34,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 02:40:34,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 02:40:34,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 02:40:34,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 02:40:34,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 02:40:34,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 02:40:34,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 02:40:34,092 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 02:40:34,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 02:40:34,092 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 02:40:34,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 02:40:34,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 02:40:34,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 02:40:34,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 02:40:34,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 02:40:34,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 02:40:34,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 02:40:34,094 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 02:40:34,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a02f2d90df049b7a5c6a05d9dfbf37e8076efe74 [2021-08-31 02:40:34,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 02:40:34,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 02:40:34,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 02:40:34,422 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 02:40:34,422 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 02:40:34,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum04-1.i [2021-08-31 02:40:34,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/023cbd834/a0786d6b6ff54a36a31a44479c4d4c37/FLAG8b21707c3 [2021-08-31 02:40:34,940 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 02:40:34,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum04-1.i [2021-08-31 02:40:34,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/023cbd834/a0786d6b6ff54a36a31a44479c4d4c37/FLAG8b21707c3 [2021-08-31 02:40:34,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/023cbd834/a0786d6b6ff54a36a31a44479c4d4c37 [2021-08-31 02:40:34,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 02:40:34,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 02:40:34,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 02:40:34,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 02:40:34,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 02:40:34,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:40:34" (1/1) ... [2021-08-31 02:40:34,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c0b8328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:34, skipping insertion in model container [2021-08-31 02:40:34,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:40:34" (1/1) ... [2021-08-31 02:40:34,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 02:40:34,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 02:40:35,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum04-1.i[808,821] [2021-08-31 02:40:35,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 02:40:35,097 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 02:40:35,121 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum04-1.i[808,821] [2021-08-31 02:40:35,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 02:40:35,133 INFO L208 MainTranslator]: Completed translation [2021-08-31 02:40:35,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35 WrapperNode [2021-08-31 02:40:35,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 02:40:35,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 02:40:35,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 02:40:35,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 02:40:35,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (1/1) ... [2021-08-31 02:40:35,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (1/1) ... [2021-08-31 02:40:35,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 02:40:35,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 02:40:35,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 02:40:35,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 02:40:35,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (1/1) ... [2021-08-31 02:40:35,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (1/1) ... [2021-08-31 02:40:35,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (1/1) ... [2021-08-31 02:40:35,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (1/1) ... [2021-08-31 02:40:35,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (1/1) ... [2021-08-31 02:40:35,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (1/1) ... [2021-08-31 02:40:35,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (1/1) ... [2021-08-31 02:40:35,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 02:40:35,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 02:40:35,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 02:40:35,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 02:40:35,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (1/1) ... [2021-08-31 02:40:35,205 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:35,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:35,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:40:35,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-31 02:40:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 02:40:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 02:40:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 02:40:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 02:40:35,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 02:40:35,348 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-31 02:40:35,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:40:35 BoogieIcfgContainer [2021-08-31 02:40:35,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 02:40:35,351 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 02:40:35,352 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 02:40:35,353 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 02:40:35,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:40:35,354 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 02:40:34" (1/3) ... [2021-08-31 02:40:35,355 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c2c7ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 02:40:35, skipping insertion in model container [2021-08-31 02:40:35,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:40:35,355 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:35" (2/3) ... [2021-08-31 02:40:35,355 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c2c7ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 02:40:35, skipping insertion in model container [2021-08-31 02:40:35,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:40:35,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:40:35" (3/3) ... [2021-08-31 02:40:35,356 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum04-1.i [2021-08-31 02:40:35,389 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 02:40:35,389 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 02:40:35,390 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 02:40:35,390 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 02:40:35,390 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 02:40:35,390 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 02:40:35,390 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 02:40:35,390 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 02:40:35,400 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) [2021-08-31 02:40:35,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-31 02:40:35,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:40:35,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:40:35,415 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:40:35,415 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 02:40:35,415 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 02:40:35,415 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) [2021-08-31 02:40:35,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-31 02:40:35,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:40:35,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:40:35,417 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:40:35,417 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 02:40:35,424 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 9#L-1true havoc main_#res;havoc main_#t~post3, main_~i~0, main_~sn~0;havoc main_~i~0;main_~sn~0 := 0;main_~i~0 := 1; 10#L24-3true [2021-08-31 02:40:35,424 INFO L793 eck$LassoCheckResult]: Loop: 10#L24-3true assume !!(main_~i~0 <= 8); 7#L25true assume main_~i~0 < 4;main_~sn~0 := 2 + main_~sn~0; 6#L24-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10#L24-3true [2021-08-31 02:40:35,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:35,429 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-31 02:40:35,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:35,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680905580] [2021-08-31 02:40:35,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:35,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:35,527 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:35,563 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:35,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:35,566 INFO L82 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2021-08-31 02:40:35,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:35,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170006496] [2021-08-31 02:40:35,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:35,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:35,575 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:35,589 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:35,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:35,591 INFO L82 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2021-08-31 02:40:35,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:35,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186129762] [2021-08-31 02:40:35,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:35,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:35,606 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:35,627 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:35,691 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:40:35,692 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:40:35,692 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:40:35,692 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:40:35,692 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 02:40:35,692 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:35,693 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:40:35,693 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:40:35,693 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2021-08-31 02:40:35,693 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:40:35,693 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:40:35,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:35,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:35,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:35,744 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:40:35,745 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 02:40:35,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:35,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:35,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:40:35,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-31 02:40:35,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:35,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:35,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-31 02:40:35,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:35,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:35,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:40:35,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-31 02:40:35,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 02:40:35,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:36,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:40:36,011 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=-1}, {ULTIMATE.start_main_~sn~0=3}, {ULTIMATE.start_main_~sn~0=0}] Lambdas: [4, 1, 0] Nus: [1, 1] [2021-08-31 02:40:36,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-08-31 02:40:36,030 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:36,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:40:36,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-31 02:40:36,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:36,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:36,074 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 [2021-08-31 02:40:36,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:36,076 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:40:36,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-31 02:40:36,081 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 02:40:36,081 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:36,113 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 02:40:36,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:36,119 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:40:36,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:40:36,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:40:36,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:40:36,120 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 02:40:36,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:40:36,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:40:36,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2021-08-31 02:40:36,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:40:36,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:40:36,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:36,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:36,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:36,159 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:40:36,163 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 02:40:36,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:36,165 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) [2021-08-31 02:40:36,167 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 [2021-08-31 02:40:36,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 02:40:36,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:36,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:36,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:36,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:36,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:36,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:36,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:36,197 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 02:40:36,215 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 [2021-08-31 02:40:36,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:36,233 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) [2021-08-31 02:40:36,237 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 [2021-08-31 02:40:36,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 02:40:36,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:36,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:36,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:36,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:36,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:36,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:36,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:36,263 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 02:40:36,265 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 02:40:36,266 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 02:40:36,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:36,268 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) [2021-08-31 02:40:36,269 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 [2021-08-31 02:40:36,270 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 02:40:36,270 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 02:40:36,271 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 02:40:36,271 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 7 Supporting invariants [] [2021-08-31 02:40:36,292 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 [2021-08-31 02:40:36,294 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 02:40:36,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:36,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 02:40:36,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:36,345 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 02:40:36,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:36,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:40:36,383 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 02:40:36,384 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-08-31 02:40:36,460 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 32 states and 44 transitions. Complement of second has 7 states. [2021-08-31 02:40:36,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 02:40:36,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2021-08-31 02:40:36,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-08-31 02:40:36,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 3 letters. [2021-08-31 02:40:36,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:36,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2021-08-31 02:40:36,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:36,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 6 letters. [2021-08-31 02:40:36,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:36,471 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 44 transitions. [2021-08-31 02:40:36,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-31 02:40:36,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2021-08-31 02:40:36,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-31 02:40:36,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-31 02:40:36,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-08-31 02:40:36,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-31 02:40:36,481 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-08-31 02:40:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-08-31 02:40:36,495 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 [2021-08-31 02:40:36,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-08-31 02:40:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:36,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-08-31 02:40:36,503 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-08-31 02:40:36,503 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-08-31 02:40:36,503 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 02:40:36,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-08-31 02:40:36,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-31 02:40:36,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:40:36,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:40:36,505 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-31 02:40:36,505 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 02:40:36,505 INFO L791 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 86#L-1 havoc main_#res;havoc main_#t~post3, main_~i~0, main_~sn~0;havoc main_~i~0;main_~sn~0 := 0;main_~i~0 := 1; 95#L24-3 assume !!(main_~i~0 <= 8); 91#L25 [2021-08-31 02:40:36,505 INFO L793 eck$LassoCheckResult]: Loop: 91#L25 assume !(main_~i~0 < 4); 87#L24-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 88#L24-3 assume !!(main_~i~0 <= 8); 91#L25 [2021-08-31 02:40:36,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:36,506 INFO L82 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2021-08-31 02:40:36,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:36,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918950514] [2021-08-31 02:40:36,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:36,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:36,528 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:36,537 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:36,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:36,538 INFO L82 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2021-08-31 02:40:36,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:36,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722470904] [2021-08-31 02:40:36,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:36,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:36,544 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:40:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:40:36,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:40:36,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:36,548 INFO L82 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2021-08-31 02:40:36,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:40:36,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121378424] [2021-08-31 02:40:36,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:40:36,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:40:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:40:36,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 02:40:36,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121378424] [2021-08-31 02:40:36,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121378424] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 02:40:36,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 02:40:36,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 02:40:36,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827396698] [2021-08-31 02:40:36,592 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:40:36,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:40:36,593 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:40:36,593 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:40:36,593 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 02:40:36,593 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,593 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:40:36,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:40:36,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2021-08-31 02:40:36,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:40:36,593 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:40:36,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:36,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:36,612 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:40:36,612 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 02:40:36,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:36,629 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:40:36,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-31 02:40:36,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:36,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:36,657 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:40:36,657 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 02:40:36,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:36,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:36,676 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:40:36,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-31 02:40:36,678 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:40:36,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:36,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-08-31 02:40:36,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:36,705 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:40:36,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 02:40:36,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:40:36,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-31 02:40:36,734 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 02:40:36,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:36,740 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:40:36,740 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:40:36,740 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:40:36,741 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:40:36,741 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 02:40:36,741 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,741 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:40:36,741 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:40:36,741 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2021-08-31 02:40:36,741 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:40:36,741 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:40:36,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:36,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:40:36,763 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:40:36,763 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 02:40:36,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:36,764 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:40:36,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-31 02:40:36,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-31 02:40:36,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:40:36,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:40:36,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:40:36,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:40:36,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:40:36,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:40:36,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:40:36,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 02:40:36,791 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 02:40:36,791 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-31 02:40:36,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:40:36,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:40:36,792 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:40:36,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-31 02:40:36,794 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 02:40:36,794 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 02:40:36,794 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 02:40:36,794 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 15 Supporting invariants [] [2021-08-31 02:40:36,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:36,811 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 02:40:36,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:40:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:36,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 02:40:36,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:40:36,836 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 02:40:36,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:40:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:40:36,860 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 02:40:36,861 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:36,876 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 22 transitions. Complement of second has 6 states. [2021-08-31 02:40:36,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-31 02:40:36,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:36,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-08-31 02:40:36,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2021-08-31 02:40:36,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:36,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2021-08-31 02:40:36,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:36,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2021-08-31 02:40:36,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:40:36,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-08-31 02:40:36,878 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 02:40:36,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-08-31 02:40:36,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 02:40:36,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 02:40:36,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 02:40:36,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 02:40:36,879 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:40:36,879 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:40:36,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 02:40:36,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 02:40:36,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 02:40:36,882 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 02:40:36,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 02:40:36,883 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-31 02:40:36,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-31 02:40:36,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-31 02:40:36,884 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 02:40:36,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-31 02:40:36,884 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 02:40:36,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 02:40:36,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 02:40:36,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 02:40:36,885 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:40:36,885 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:40:36,885 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:40:36,885 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 02:40:36,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 02:40:36,885 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 02:40:36,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 02:40:36,887 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 02:40:36,888 INFO L158 Benchmark]: Toolchain (without parser) took 1924.80ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 45.3MB in the beginning and 41.8MB in the end (delta: 3.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2021-08-31 02:40:36,889 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 47.1MB in the beginning and 47.1MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 02:40:36,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.69ms. Allocated memory is still 65.0MB. Free memory was 45.1MB in the beginning and 48.2MB in the end (delta: -3.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-08-31 02:40:36,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.07ms. Allocated memory is still 65.0MB. Free memory was 48.0MB in the beginning and 46.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 02:40:36,890 INFO L158 Benchmark]: Boogie Preprocessor took 20.34ms. Allocated memory is still 65.0MB. Free memory was 46.6MB in the beginning and 45.8MB in the end (delta: 873.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 02:40:36,890 INFO L158 Benchmark]: RCFGBuilder took 150.23ms. Allocated memory is still 65.0MB. Free memory was 45.8MB in the beginning and 37.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 02:40:36,891 INFO L158 Benchmark]: BuchiAutomizer took 1536.16ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 37.6MB in the beginning and 41.8MB in the end (delta: -4.2MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2021-08-31 02:40:36,893 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 65.0MB. Free memory was 47.1MB in the beginning and 47.1MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.69ms. Allocated memory is still 65.0MB. Free memory was 45.1MB in the beginning and 48.2MB in the end (delta: -3.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.07ms. Allocated memory is still 65.0MB. Free memory was 48.0MB in the beginning and 46.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.34ms. Allocated memory is still 65.0MB. Free memory was 46.6MB in the beginning and 45.8MB in the end (delta: 873.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 150.23ms. Allocated memory is still 65.0MB. Free memory was 45.8MB in the beginning and 37.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1536.16ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 37.6MB in the beginning and 41.8MB in the end (delta: -4.2MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 7 + -2 * i and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 15 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 02:40:36,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-31 02:40:37,137 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...