./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/sum_20x0-1.c --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/recursive-simple/sum_20x0-1.c -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 d709c141e865b9e316ae50970f4a7a44b0dfd8eb
....................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 04:17:48,621 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-08-31 04:17:48,622 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-08-31 04:17:48,650 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-08-31 04:17:48,653 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-08-31 04:17:48,654 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-08-31 04:17:48,656 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-08-31 04:17:48,660 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-08-31 04:17:48,662 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-08-31 04:17:48,664 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-08-31 04:17:48,664 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-08-31 04:17:48,666 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-08-31 04:17:48,667 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-08-31 04:17:48,669 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-08-31 04:17:48,671 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-08-31 04:17:48,673 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-08-31 04:17:48,674 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-08-31 04:17:48,678 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-08-31 04:17:48,680 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-08-31 04:17:48,684 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-08-31 04:17:48,688 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-08-31 04:17:48,689 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-08-31 04:17:48,690 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-08-31 04:17:48,691 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-08-31 04:17:48,695 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-08-31 04:17:48,700 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-08-31 04:17:48,701 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-08-31 04:17:48,701 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-08-31 04:17:48,702 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-08-31 04:17:48,703 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-08-31 04:17:48,704 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-08-31 04:17:48,705 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-08-31 04:17:48,705 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-08-31 04:17:48,706 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-08-31 04:17:48,707 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-08-31 04:17:48,708 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-08-31 04:17:48,708 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-08-31 04:17:48,709 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-08-31 04:17:48,709 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-08-31 04:17:48,710 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-08-31 04:17:48,711 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-08-31 04:17:48,712 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf
[2021-08-31 04:17:48,743 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-08-31 04:17:48,743 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-08-31 04:17:48,744 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-08-31 04:17:48,744 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-08-31 04:17:48,746 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-08-31 04:17:48,746 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-08-31 04:17:48,746 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-08-31 04:17:48,747 INFO  L136        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2021-08-31 04:17:48,747 INFO  L138        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2021-08-31 04:17:48,747 INFO  L138        SettingsManager]:  * Use old map elimination=false
[2021-08-31 04:17:48,748 INFO  L138        SettingsManager]:  * Use external solver (rank synthesis)=false
[2021-08-31 04:17:48,748 INFO  L138        SettingsManager]:  * Use only trivial implications for array writes=true
[2021-08-31 04:17:48,748 INFO  L138        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2021-08-31 04:17:48,748 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-08-31 04:17:48,748 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-08-31 04:17:48,749 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2021-08-31 04:17:48,749 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-08-31 04:17:48,749 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-08-31 04:17:48,749 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-08-31 04:17:48,749 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2021-08-31 04:17:48,749 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2021-08-31 04:17:48,750 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2021-08-31 04:17:48,750 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-08-31 04:17:48,761 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-08-31 04:17:48,761 INFO  L138        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2021-08-31 04:17:48,761 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-08-31 04:17:48,762 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2021-08-31 04:17:48,762 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-08-31 04:17:48,762 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-08-31 04:17:48,762 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-08-31 04:17:48,762 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-08-31 04:17:48,763 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-08-31 04:17:48,764 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-08-31 04:17:48,764 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 -> d709c141e865b9e316ae50970f4a7a44b0dfd8eb
[2021-08-31 04:17:49,066 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-08-31 04:17:49,095 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-08-31 04:17:49,097 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-08-31 04:17:49,098 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-08-31 04:17:49,099 INFO  L275        PluginConnector]: CDTParser initialized
[2021-08-31 04:17:49,102 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_20x0-1.c
[2021-08-31 04:17:49,162 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/026f3db4b/7a34af1c324c4806a37549f5ac51a12f/FLAG778d0d5fb
[2021-08-31 04:17:49,547 INFO  L306              CDTParser]: Found 1 translation units.
[2021-08-31 04:17:49,548 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_20x0-1.c
[2021-08-31 04:17:49,553 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/026f3db4b/7a34af1c324c4806a37549f5ac51a12f/FLAG778d0d5fb
[2021-08-31 04:17:49,965 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/026f3db4b/7a34af1c324c4806a37549f5ac51a12f
[2021-08-31 04:17:49,967 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-08-31 04:17:49,969 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-08-31 04:17:49,972 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-08-31 04:17:49,972 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-08-31 04:17:49,975 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-08-31 04:17:49,975 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:17:49" (1/1) ...
[2021-08-31 04:17:49,976 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122606e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:49, skipping insertion in model container
[2021-08-31 04:17:49,976 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:17:49" (1/1) ...
[2021-08-31 04:17:49,982 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-08-31 04:17:49,994 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-08-31 04:17:50,090 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/recursive-simple/sum_20x0-1.c[481,494]
[2021-08-31 04:17:50,091 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-08-31 04:17:50,098 INFO  L203         MainTranslator]: Completed pre-run
[2021-08-31 04:17:50,107 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/recursive-simple/sum_20x0-1.c[481,494]
[2021-08-31 04:17:50,108 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-08-31 04:17:50,117 INFO  L208         MainTranslator]: Completed translation
[2021-08-31 04:17:50,118 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50 WrapperNode
[2021-08-31 04:17:50,118 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-08-31 04:17:50,119 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-08-31 04:17:50,119 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-08-31 04:17:50,119 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-08-31 04:17:50,141 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (1/1) ...
[2021-08-31 04:17:50,168 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (1/1) ...
[2021-08-31 04:17:50,195 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-08-31 04:17:50,196 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-08-31 04:17:50,196 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-08-31 04:17:50,196 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-08-31 04:17:50,202 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (1/1) ...
[2021-08-31 04:17:50,202 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (1/1) ...
[2021-08-31 04:17:50,204 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (1/1) ...
[2021-08-31 04:17:50,204 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (1/1) ...
[2021-08-31 04:17:50,210 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (1/1) ...
[2021-08-31 04:17:50,212 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (1/1) ...
[2021-08-31 04:17:50,217 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (1/1) ...
[2021-08-31 04:17:50,219 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-08-31 04:17:50,221 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-08-31 04:17:50,221 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-08-31 04:17:50,221 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-08-31 04:17:50,223 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (1/1) ...
[2021-08-31 04:17:50,233 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:50,241 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:50,254 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 04:17:50,280 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 04:17:50,301 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-08-31 04:17:50,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-08-31 04:17:50,301 INFO  L130     BoogieDeclarations]: Found specification of procedure sum
[2021-08-31 04:17:50,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure sum
[2021-08-31 04:17:50,302 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-08-31 04:17:50,302 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-08-31 04:17:50,443 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-08-31 04:17:50,443 INFO  L299             CfgBuilder]: Removed 4 assume(true) statements.
[2021-08-31 04:17:50,445 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:17:50 BoogieIcfgContainer
[2021-08-31 04:17:50,445 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-08-31 04:17:50,446 INFO  L113        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2021-08-31 04:17:50,446 INFO  L271        PluginConnector]: Initializing BuchiAutomizer...
[2021-08-31 04:17:50,449 INFO  L275        PluginConnector]: BuchiAutomizer initialized
[2021-08-31 04:17:50,449 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-08-31 04:17:50,450 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 04:17:49" (1/3) ...
[2021-08-31 04:17:50,450 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76c08e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:17:50, skipping insertion in model container
[2021-08-31 04:17:50,451 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-08-31 04:17:50,451 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:17:50" (2/3) ...
[2021-08-31 04:17:50,451 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76c08e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:17:50, skipping insertion in model container
[2021-08-31 04:17:50,451 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-08-31 04:17:50,452 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:17:50" (3/3) ...
[2021-08-31 04:17:50,453 INFO  L389   chiAutomizerObserver]: Analyzing ICFG sum_20x0-1.c
[2021-08-31 04:17:50,502 INFO  L359         BuchiCegarLoop]: Interprodecural is true
[2021-08-31 04:17:50,502 INFO  L360         BuchiCegarLoop]: Hoare is false
[2021-08-31 04:17:50,502 INFO  L361         BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2021-08-31 04:17:50,502 INFO  L362         BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2021-08-31 04:17:50,502 INFO  L363         BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-08-31 04:17:50,503 INFO  L364         BuchiCegarLoop]: Difference is false
[2021-08-31 04:17:50,503 INFO  L365         BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-08-31 04:17:50,503 INFO  L368         BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2021-08-31 04:17:50,517 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-08-31 04:17:50,538 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2021-08-31 04:17:50,538 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-08-31 04:17:50,538 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-08-31 04:17:50,544 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2021-08-31 04:17:50,544 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-08-31 04:17:50,544 INFO  L425         BuchiCegarLoop]: ======== Iteration 1============
[2021-08-31 04:17:50,545 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-08-31 04:17:50,547 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2021-08-31 04:17:50,547 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-08-31 04:17:50,548 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-08-31 04:17:50,548 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2021-08-31 04:17:50,548 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-08-31 04:17:50,556 INFO  L791   eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~ret8, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 20;main_~b~0 := 0; 3#L16true call main_#t~ret8 := sum(main_~a~0, main_~b~0);< 10#sumENTRYtrue 
[2021-08-31 04:17:50,556 INFO  L793   eck$LassoCheckResult]: Loop: 10#sumENTRYtrue ~n := #in~n;~m := #in~m; 15#L6true assume !(~n <= 0); 14#L9true call #t~ret7 := sum(~n - 1, 1 + ~m);< 10#sumENTRYtrue 
[2021-08-31 04:17:50,561 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-31 04:17:50,561 INFO  L82        PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times
[2021-08-31 04:17:50,576 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-31 04:17:50,577 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754059925]
[2021-08-31 04:17:50,578 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-31 04:17:50,579 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-31 04:17:50,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-08-31 04:17:50,671 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-08-31 04:17:50,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-08-31 04:17:50,724 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-08-31 04:17:50,726 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-31 04:17:50,727 INFO  L82        PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times
[2021-08-31 04:17:50,727 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-31 04:17:50,728 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111749364]
[2021-08-31 04:17:50,729 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-31 04:17:50,729 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-31 04:17:50,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-08-31 04:17:50,744 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-08-31 04:17:50,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-08-31 04:17:50,758 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-08-31 04:17:50,760 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-31 04:17:50,760 INFO  L82        PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times
[2021-08-31 04:17:50,761 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-08-31 04:17:50,761 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096983339]
[2021-08-31 04:17:50,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-08-31 04:17:50,761 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-08-31 04:17:50,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-08-31 04:17:50,776 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-08-31 04:17:50,790 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-08-31 04:17:50,794 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-08-31 04:17:51,000 INFO  L210          LassoAnalysis]: Preferences:
[2021-08-31 04:17:51,001 INFO  L126   ssoRankerPreferences]: Compute integeral hull: false
[2021-08-31 04:17:51,001 INFO  L127   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-08-31 04:17:51,001 INFO  L128   ssoRankerPreferences]: Term annotations enabled: false
[2021-08-31 04:17:51,001 INFO  L129   ssoRankerPreferences]: Use exernal solver: true
[2021-08-31 04:17:51,001 INFO  L130   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,001 INFO  L131   ssoRankerPreferences]: Dump SMT script to file: false
[2021-08-31 04:17:51,002 INFO  L132   ssoRankerPreferences]: Path of dumped script: 
[2021-08-31 04:17:51,002 INFO  L133   ssoRankerPreferences]: Filename of dumped script: sum_20x0-1.c_Iteration1_Loop
[2021-08-31 04:17:51,002 INFO  L134   ssoRankerPreferences]: MapElimAlgo: Frank
[2021-08-31 04:17:51,002 INFO  L276          LassoAnalysis]: Starting lasso preprocessing...
[2021-08-31 04:17:51,012 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 04:17:51,016 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 04:17:51,023 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 04:17:51,026 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 04:17:51,037 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 04:17:51,040 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 04:17:51,093 INFO  L294          LassoAnalysis]: Preprocessing complete.
[2021-08-31 04:17:51,094 INFO  L404          LassoAnalysis]: Checking for nontermination...
[2021-08-31 04:17:51,095 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,095 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:51,096 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 04:17:51,097 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 04:17:51,098 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-08-31 04:17:51,098 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2021-08-31 04:17:51,116 INFO  L437          LassoAnalysis]: Proved nontermination for one component.
[2021-08-31 04:17:51,116 INFO  L440          LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret7=0} Honda state: {sum_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-08-31 04:17:51,137 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
[2021-08-31 04:17:51,138 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,138 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:51,139 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 04:17:51,151 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 04:17:51,152 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-08-31 04:17:51,152 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2021-08-31 04:17:51,174 INFO  L437          LassoAnalysis]: Proved nontermination for one component.
[2021-08-31 04:17:51,174 INFO  L440          LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-08-31 04:17:51,202 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
[2021-08-31 04:17:51,202 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,203 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:51,217 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 04:17:51,227 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 04:17:51,227 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-08-31 04:17:51,228 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2021-08-31 04:17:51,238 INFO  L437          LassoAnalysis]: Proved nontermination for one component.
[2021-08-31 04:17:51,239 INFO  L440          LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-08-31 04:17:51,257 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 04:17:51,258 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,258 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:51,259 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 04:17:51,260 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 04:17:51,261 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-08-31 04:17:51,261 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2021-08-31 04:17:51,287 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 04:17:51,288 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,288 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:51,289 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 04:17:51,290 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 04:17:51,291 INFO  L148   nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-08-31 04:17:51,291 INFO  L160   nArgumentSynthesizer]: Using integer mode.
[2021-08-31 04:17:51,320 INFO  L444          LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-08-31 04:17:51,326 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0
[2021-08-31 04:17:51,326 INFO  L210          LassoAnalysis]: Preferences:
[2021-08-31 04:17:51,327 INFO  L126   ssoRankerPreferences]: Compute integeral hull: false
[2021-08-31 04:17:51,327 INFO  L127   ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-08-31 04:17:51,327 INFO  L128   ssoRankerPreferences]: Term annotations enabled: false
[2021-08-31 04:17:51,327 INFO  L129   ssoRankerPreferences]: Use exernal solver: false
[2021-08-31 04:17:51,327 INFO  L130   ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,327 INFO  L131   ssoRankerPreferences]: Dump SMT script to file: false
[2021-08-31 04:17:51,327 INFO  L132   ssoRankerPreferences]: Path of dumped script: 
[2021-08-31 04:17:51,327 INFO  L133   ssoRankerPreferences]: Filename of dumped script: sum_20x0-1.c_Iteration1_Loop
[2021-08-31 04:17:51,327 INFO  L134   ssoRankerPreferences]: MapElimAlgo: Frank
[2021-08-31 04:17:51,327 INFO  L276          LassoAnalysis]: Starting lasso preprocessing...
[2021-08-31 04:17:51,329 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 04:17:51,331 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 04:17:51,334 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 04:17:51,336 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 04:17:51,348 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 04:17:51,351 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 04:17:51,401 INFO  L294          LassoAnalysis]: Preprocessing complete.
[2021-08-31 04:17:51,407 INFO  L490          LassoAnalysis]: Using template 'affine'.
[2021-08-31 04:17:51,422 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,422 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:51,433 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 04:17:51,468 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 04:17:51,468 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 04:17:51,476 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2021-08-31 04:17:51,476 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-08-31 04:17:51,477 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2021-08-31 04:17:51,477 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2021-08-31 04:17:51,477 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2021-08-31 04:17:51,479 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-08-31 04:17:51,479 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-08-31 04:17:51,489 INFO  L527          LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-08-31 04:17:51,504 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 04:17:51,504 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,505 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:51,505 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 04:17:51,506 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 04:17:51,507 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 04:17:51,514 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2021-08-31 04:17:51,514 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-08-31 04:17:51,514 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2021-08-31 04:17:51,514 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2021-08-31 04:17:51,514 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2021-08-31 04:17:51,515 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-08-31 04:17:51,515 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-08-31 04:17:51,522 INFO  L527          LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-08-31 04:17:51,540 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 04:17:51,540 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,541 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:51,541 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 04:17:51,543 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 04:17:51,544 INFO  L120   nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-08-31 04:17:51,550 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2021-08-31 04:17:51,551 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-08-31 04:17:51,551 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2021-08-31 04:17:51,551 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2021-08-31 04:17:51,551 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2021-08-31 04:17:51,552 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-08-31 04:17:51,552 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-08-31 04:17:51,558 INFO  L527          LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-08-31 04:17:51,574 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 04:17:51,575 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,575 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:51,576 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 04:17:51,576 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 04:17:51,577 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 04:17:51,584 INFO  L338   nArgumentSynthesizer]: Template has degree 0.
[2021-08-31 04:17:51,584 INFO  L351   nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-08-31 04:17:51,584 INFO  L203   nArgumentSynthesizer]: 1 stem disjuncts
[2021-08-31 04:17:51,584 INFO  L204   nArgumentSynthesizer]: 1 loop disjuncts
[2021-08-31 04:17:51,585 INFO  L205   nArgumentSynthesizer]: 2 template conjuncts.
[2021-08-31 04:17:51,587 INFO  L401   nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-08-31 04:17:51,588 INFO  L402   nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-08-31 04:17:51,597 INFO  L420   nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-08-31 04:17:51,601 INFO  L443   ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-08-31 04:17:51,601 INFO  L444   ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-08-31 04:17:51,602 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-08-31 04:17:51,602 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-08-31 04:17:51,606 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 04:17:51,607 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 04:17:51,607 INFO  L435   nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-08-31 04:17:51,607 INFO  L438   nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-08-31 04:17:51,608 INFO  L513          LassoAnalysis]: Proved termination.
[2021-08-31 04:17:51,608 INFO  L515          LassoAnalysis]: Termination argument consisting of:
Ranking function f(sum_#in~n) = 1*sum_#in~n
Supporting invariants []
[2021-08-31 04:17:51,624 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0
[2021-08-31 04:17:51,626 INFO  L297   tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-08-31 04:17:51,660 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-08-31 04:17:51,681 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-31 04:17:51,683 INFO  L263         TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-08-31 04:17:51,684 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-31 04:17:51,702 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-08-31 04:17:51,703 INFO  L263         TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-08-31 04:17:51,703 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-08-31 04:17:51,760 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 04:17:51,784 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 04:17:51,810 INFO  L152   lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates 
[2021-08-31 04:17:51,811 INFO  L71    iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand  has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-08-31 04:17:51,888 INFO  L75    iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand  has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 12 states.
[2021-08-31 04:17:51,889 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 04:17:51,895 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-08-31 04:17:51,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions.
[2021-08-31 04:17:51,896 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters.
[2021-08-31 04:17:51,897 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2021-08-31 04:17:51,897 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters.
[2021-08-31 04:17:51,897 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2021-08-31 04:17:51,897 INFO  L84            BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters.
[2021-08-31 04:17:51,897 INFO  L116           BuchiAccepts]: Finished buchiAccepts.
[2021-08-31 04:17:51,898 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions.
[2021-08-31 04:17:51,900 INFO  L131   ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2021-08-31 04:17:51,902 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions.
[2021-08-31 04:17:51,903 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2021-08-31 04:17:51,903 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2021-08-31 04:17:51,903 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2021-08-31 04:17:51,903 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-08-31 04:17:51,904 INFO  L681         BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-08-31 04:17:51,904 INFO  L704         BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-08-31 04:17:51,904 INFO  L587         BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-08-31 04:17:51,904 INFO  L425         BuchiCegarLoop]: ======== Iteration 2============
[2021-08-31 04:17:51,904 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2021-08-31 04:17:51,904 INFO  L131   ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2021-08-31 04:17:51,905 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2021-08-31 04:17:51,907 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 04:17:51,910 INFO  L158              Benchmark]: Toolchain (without parser) took 1939.83ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 56.9MB in the beginning and 60.0MB in the end (delta: -3.1MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB.
[2021-08-31 04:17:51,910 INFO  L158              Benchmark]: CDTParser took 0.36ms. Allocated memory is still 71.3MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-08-31 04:17:51,911 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 146.34ms. Allocated memory is still 71.3MB. Free memory was 56.5MB in the beginning and 47.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-08-31 04:17:51,911 INFO  L158              Benchmark]: Boogie Procedure Inliner took 76.19ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 55.8MB in the end (delta: -8.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2021-08-31 04:17:51,912 INFO  L158              Benchmark]: Boogie Preprocessor took 23.71ms. Allocated memory is still 71.3MB. Free memory was 55.8MB in the beginning and 54.9MB in the end (delta: 943.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-08-31 04:17:51,912 INFO  L158              Benchmark]: RCFGBuilder took 224.24ms. Allocated memory is still 71.3MB. Free memory was 54.9MB in the beginning and 46.6MB in the end (delta: 8.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2021-08-31 04:17:51,913 INFO  L158              Benchmark]: BuchiAutomizer took 1462.54ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 46.6MB in the beginning and 60.0MB in the end (delta: -13.4MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB.
[2021-08-31 04:17:51,915 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.36ms. Allocated memory is still 71.3MB. Free memory is still 54.3MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 146.34ms. Allocated memory is still 71.3MB. Free memory was 56.5MB in the beginning and 47.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 76.19ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 55.8MB in the end (delta: -8.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 23.71ms. Allocated memory is still 71.3MB. Free memory was 55.8MB in the beginning and 54.9MB in the end (delta: 943.4kB). There was no memory consumed. Max. memory is 16.1GB.
 * RCFGBuilder took 224.24ms. Allocated memory is still 71.3MB. Free memory was 54.9MB in the beginning and 46.6MB in the end (delta: 8.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
 * BuchiAutomizer took 1462.54ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 46.6MB in the beginning and 60.0MB in the end (delta: -13.4MB). Peak memory consumption was 3.4MB. 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 \old(n) and consists of 4 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 04:17:51,945 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...