./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c --full-output -ea --architecture 64bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version 03d7b7b3
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 706881f151574cd444dafd615d249704df8f903990098d13198cd104c5c995e4
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-03d7b7b
[2022-02-21 03:24:50,479 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-02-21 03:24:50,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-02-21 03:24:50,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-02-21 03:24:50,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-02-21 03:24:50,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-02-21 03:24:50,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-02-21 03:24:50,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-02-21 03:24:50,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-02-21 03:24:50,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-02-21 03:24:50,527 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-02-21 03:24:50,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-02-21 03:24:50,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-02-21 03:24:50,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-02-21 03:24:50,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-02-21 03:24:50,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-02-21 03:24:50,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-02-21 03:24:50,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-02-21 03:24:50,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-02-21 03:24:50,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-02-21 03:24:50,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-02-21 03:24:50,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-02-21 03:24:50,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-02-21 03:24:50,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-02-21 03:24:50,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-02-21 03:24:50,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-02-21 03:24:50,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-02-21 03:24:50,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-02-21 03:24:50,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-02-21 03:24:50,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-02-21 03:24:50,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-02-21 03:24:50,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-02-21 03:24:50,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-02-21 03:24:50,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-02-21 03:24:50,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-02-21 03:24:50,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-02-21 03:24:50,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-02-21 03:24:50,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-02-21 03:24:50,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-02-21 03:24:50,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-02-21 03:24:50,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-21 03:24:50,556 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf
[2022-02-21 03:24:50,579 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-21 03:24:50,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-21 03:24:50,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-21 03:24:50,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-21 03:24:50,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-21 03:24:50,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-21 03:24:50,582 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-21 03:24:50,582 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2022-02-21 03:24:50,582 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2022-02-21 03:24:50,582 INFO L138 SettingsManager]: * Use old map elimination=false
[2022-02-21 03:24:50,583 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false
[2022-02-21 03:24:50,583 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true
[2022-02-21 03:24:50,583 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2022-02-21 03:24:50,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-21 03:24:50,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-02-21 03:24:50,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-21 03:24:50,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-21 03:24:50,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2022-02-21 03:24:50,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2022-02-21 03:24:50,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2022-02-21 03:24:50,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-21 03:24:50,584 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false
[2022-02-21 03:24:50,585 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-21 03:24:50,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2022-02-21 03:24:50,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-21 03:24:50,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-21 03:24:50,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-21 03:24:50,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-21 03:24:50,587 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-02-21 03:24:50,587 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 706881f151574cd444dafd615d249704df8f903990098d13198cd104c5c995e4
[2022-02-21 03:24:50,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-21 03:24:50,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-21 03:24:50,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-21 03:24:50,787 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-02-21 03:24:50,788 INFO L275 PluginConnector]: CDTParser initialized
[2022-02-21 03:24:50,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c
[2022-02-21 03:24:50,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f425c6f6/70fc3b880d994fa7bb4e27f1db2641fc/FLAG282cf2b31
[2022-02-21 03:24:51,190 INFO L306 CDTParser]: Found 1 translation units.
[2022-02-21 03:24:51,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c
[2022-02-21 03:24:51,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f425c6f6/70fc3b880d994fa7bb4e27f1db2641fc/FLAG282cf2b31
[2022-02-21 03:24:51,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f425c6f6/70fc3b880d994fa7bb4e27f1db2641fc
[2022-02-21 03:24:51,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-21 03:24:51,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-02-21 03:24:51,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-02-21 03:24:51,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-02-21 03:24:51,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-02-21 03:24:51,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2289ca63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51, skipping insertion in model container
[2022-02-21 03:24:51,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-02-21 03:24:51,234 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-02-21 03:24:51,403 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-21 03:24:51,407 INFO L203 MainTranslator]: Completed pre-run
[2022-02-21 03:24:51,424 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-02-21 03:24:51,438 INFO L208 MainTranslator]: Completed translation
[2022-02-21 03:24:51,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51 WrapperNode
[2022-02-21 03:24:51,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-02-21 03:24:51,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-21 03:24:51,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-21 03:24:51,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-21 03:24:51,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,467 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19
[2022-02-21 03:24:51,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-21 03:24:51,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-21 03:24:51,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-21 03:24:51,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-21 03:24:51,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-21 03:24:51,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-21 03:24:51,492 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-21 03:24:51,492 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-21 03:24:51,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (1/1) ...
[2022-02-21 03:24:51,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:51,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:51,514 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)
[2022-02-21 03:24:51,531 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
[2022-02-21 03:24:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-21 03:24:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-21 03:24:51,590 INFO L234 CfgBuilder]: Building ICFG
[2022-02-21 03:24:51,591 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-21 03:24:51,646 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-21 03:24:51,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-21 03:24:51,651 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2022-02-21 03:24:51,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:51 BoogieIcfgContainer
[2022-02-21 03:24:51,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-21 03:24:51,653 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2022-02-21 03:24:51,653 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2022-02-21 03:24:51,655 INFO L275 PluginConnector]: BuchiAutomizer initialized
[2022-02-21 03:24:51,656 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-02-21 03:24:51,656 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:24:51" (1/3) ...
[2022-02-21 03:24:51,656 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@678d0b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:24:51, skipping insertion in model container
[2022-02-21 03:24:51,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-02-21 03:24:51,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:51" (2/3) ...
[2022-02-21 03:24:51,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@678d0b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:24:51, skipping insertion in model container
[2022-02-21 03:24:51,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-02-21 03:24:51,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:51" (3/3) ...
[2022-02-21 03:24:51,658 INFO L388 chiAutomizerObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex3.01.c
[2022-02-21 03:24:51,686 INFO L359 BuchiCegarLoop]: Interprodecural is true
[2022-02-21 03:24:51,686 INFO L360 BuchiCegarLoop]: Hoare is false
[2022-02-21 03:24:51,686 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2022-02-21 03:24:51,687 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2022-02-21 03:24:51,687 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2022-02-21 03:24:51,687 INFO L364 BuchiCegarLoop]: Difference is false
[2022-02-21 03:24:51,687 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2022-02-21 03:24:51,687 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2022-02-21 03:24:51,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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)
[2022-02-21 03:24:51,723 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2022-02-21 03:24:51,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-02-21 03:24:51,723 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-02-21 03:24:51,726 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2022-02-21 03:24:51,727 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1]
[2022-02-21 03:24:51,727 INFO L425 BuchiCegarLoop]: ======== Iteration 1============
[2022-02-21 03:24:51,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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)
[2022-02-21 03:24:51,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2022-02-21 03:24:51,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-02-21 03:24:51,730 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-02-21 03:24:51,730 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2022-02-21 03:24:51,730 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1]
[2022-02-21 03:24:51,736 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 8#L27-2true
[2022-02-21 03:24:51,737 INFO L793 eck$LassoCheckResult]: Loop: 8#L27-2true assume !!(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~y~0#1 := main_~z~0#1; 8#L27-2true
[2022-02-21 03:24:51,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-21 03:24:51,745 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times
[2022-02-21 03:24:51,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-21 03:24:51,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466477533]
[2022-02-21 03:24:51,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-21 03:24:51,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-21 03:24:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-21 03:24:51,804 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-02-21 03:24:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-21 03:24:51,827 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-02-21 03:24:51,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-21 03:24:51,829 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times
[2022-02-21 03:24:51,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-21 03:24:51,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936703696]
[2022-02-21 03:24:51,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-21 03:24:51,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-21 03:24:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-21 03:24:51,849 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-02-21 03:24:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-21 03:24:51,858 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-02-21 03:24:51,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-21 03:24:51,860 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times
[2022-02-21 03:24:51,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-21 03:24:51,860 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493096449]
[2022-02-21 03:24:51,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-21 03:24:51,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-21 03:24:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-21 03:24:51,877 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-02-21 03:24:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-02-21 03:24:51,887 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-02-21 03:24:51,977 INFO L210 LassoAnalysis]: Preferences:
[2022-02-21 03:24:51,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-02-21 03:24:51,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-02-21 03:24:51,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-02-21 03:24:51,977 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2022-02-21 03:24:51,978 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:51,978 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-02-21 03:24:51,978 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-02-21 03:24:51,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChenFlurMukhopadhyay-SAS2012-Ex3.01.c_Iteration1_Loop
[2022-02-21 03:24:51,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-02-21 03:24:51,978 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-02-21 03:24:52,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-02-21 03:24:52,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-02-21 03:24:52,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-02-21 03:24:52,135 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-02-21 03:24:52,135 INFO L404 LassoAnalysis]: Checking for nontermination...
[2022-02-21 03:24:52,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:52,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:52,152 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)
[2022-02-21 03:24:52,153 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
[2022-02-21 03:24:52,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-02-21 03:24:52,154 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-02-21 03:24:52,175 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-02-21 03:24:52,175 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-02-21 03:24:52,193 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
[2022-02-21 03:24:52,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:52,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:52,208 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)
[2022-02-21 03:24:52,235 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
[2022-02-21 03:24:52,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-02-21 03:24:52,236 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-02-21 03:24:52,259 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-02-21 03:24:52,260 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-02-21 03:24:52,277 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
[2022-02-21 03:24:52,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:52,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:52,285 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)
[2022-02-21 03:24:52,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-02-21 03:24:52,289 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-02-21 03:24:52,299 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
[2022-02-21 03:24:52,324 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
[2022-02-21 03:24:52,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:52,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:52,325 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)
[2022-02-21 03:24:52,326 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
[2022-02-21 03:24:52,328 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2022-02-21 03:24:52,328 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-02-21 03:24:52,702 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2022-02-21 03:24:52,709 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
[2022-02-21 03:24:52,709 INFO L210 LassoAnalysis]: Preferences:
[2022-02-21 03:24:52,709 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-02-21 03:24:52,709 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-02-21 03:24:52,709 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-02-21 03:24:52,710 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2022-02-21 03:24:52,710 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:52,710 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-02-21 03:24:52,710 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-02-21 03:24:52,710 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChenFlurMukhopadhyay-SAS2012-Ex3.01.c_Iteration1_Loop
[2022-02-21 03:24:52,710 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-02-21 03:24:52,710 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-02-21 03:24:52,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-02-21 03:24:52,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-02-21 03:24:52,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-02-21 03:24:52,772 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-02-21 03:24:52,776 INFO L490 LassoAnalysis]: Using template 'affine'.
[2022-02-21 03:24:52,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:52,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:52,778 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)
[2022-02-21 03:24:52,785 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
[2022-02-21 03:24:52,786 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
[2022-02-21 03:24:52,793 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-02-21 03:24:52,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-02-21 03:24:52,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-02-21 03:24:52,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-02-21 03:24:52,797 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2022-02-21 03:24:52,797 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2022-02-21 03:24:52,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-02-21 03:24:52,828 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
[2022-02-21 03:24:52,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:52,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:52,830 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)
[2022-02-21 03:24:52,831 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
[2022-02-21 03:24:52,832 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
[2022-02-21 03:24:52,840 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-02-21 03:24:52,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-02-21 03:24:52,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-02-21 03:24:52,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-02-21 03:24:52,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-02-21 03:24:52,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-02-21 03:24:52,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-02-21 03:24:52,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-02-21 03:24:52,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0
[2022-02-21 03:24:52,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:52,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:52,880 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)
[2022-02-21 03:24:52,882 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
[2022-02-21 03:24:52,883 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
[2022-02-21 03:24:52,889 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-02-21 03:24:52,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-02-21 03:24:52,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-02-21 03:24:52,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-02-21 03:24:52,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2022-02-21 03:24:52,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2022-02-21 03:24:52,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-02-21 03:24:52,961 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
[2022-02-21 03:24:52,961 INFO L490 LassoAnalysis]: Using template '2-nested'.
[2022-02-21 03:24:52,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:52,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:52,963 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)
[2022-02-21 03:24:52,964 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
[2022-02-21 03:24:52,965 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
[2022-02-21 03:24:52,971 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-02-21 03:24:52,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-02-21 03:24:52,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-02-21 03:24:52,972 INFO L205 nArgumentSynthesizer]: 3 template conjuncts.
[2022-02-21 03:24:52,974 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications.
[2022-02-21 03:24:52,975 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added.
[2022-02-21 03:24:52,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-02-21 03:24:53,011 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
[2022-02-21 03:24:53,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:53,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:53,013 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)
[2022-02-21 03:24:53,014 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
[2022-02-21 03:24:53,015 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
[2022-02-21 03:24:53,022 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-02-21 03:24:53,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-02-21 03:24:53,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-02-21 03:24:53,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-02-21 03:24:53,022 INFO L205 nArgumentSynthesizer]: 3 template conjuncts.
[2022-02-21 03:24:53,024 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications.
[2022-02-21 03:24:53,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-02-21 03:24:53,030 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2022-02-21 03:24:53,056 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver.
[2022-02-21 03:24:53,056 INFO L444 ModelExtractionUtils]: 2 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero.
[2022-02-21 03:24:53,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-02-21 03:24:53,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-21 03:24:53,059 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)
[2022-02-21 03:24:53,099 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
[2022-02-21 03:24:53,099 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2022-02-21 03:24:53,100 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2022-02-21 03:24:53,100 INFO L513 LassoAnalysis]: Proved termination.
[2022-02-21 03:24:53,100 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function 2-nested ranking function:
f0 = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~z~0#1
f1 = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1
Supporting invariants []
[2022-02-21 03:24:53,117 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
[2022-02-21 03:24:53,134 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2022-02-21 03:24:53,150 INFO L390 LassoCheck]: Loop: "assume !!(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~y~0#1 := main_~z~0#1;"
[2022-02-21 03:24:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-21 03:24:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-21 03:24:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-21 03:24:53,204 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-02-21 03:24:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-21 03:24:53,209 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-21 03:24:53,220 INFO L290 TraceCheckUtils]: 0: Hoare triple {17#unseeded} assume { :begin_inline_ULTIMATE.init } true; {17#unseeded} is VALID
[2022-02-21 03:24:53,220 INFO L290 TraceCheckUtils]: 1: Hoare triple {17#unseeded} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; {17#unseeded} is VALID
[2022-02-21 03:24:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-21 03:24:53,227 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-02-21 03:24:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-21 03:24:53,232 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-21 03:24:53,233 INFO L290 TraceCheckUtils]: 0: Hoare triple {22#(and (>= oldRank1 (ite (> (+ |ULTIMATE.start_main_~z~0#1| (* (- 1) |ULTIMATE.start_main_~x~0#1|)) 0) (+ |ULTIMATE.start_main_~z~0#1| (* (- 1) |ULTIMATE.start_main_~x~0#1|)) (+ |ULTIMATE.start_main_~y~0#1| (* (- 1) |ULTIMATE.start_main_~x~0#1|)))) (>= oldRank0 (ite (> (+ |ULTIMATE.start_main_~z~0#1| (* (- 1) |ULTIMATE.start_main_~x~0#1|)) 0) 1 0)))} assume !!(main_~x~0#1 < main_~y~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~y~0#1 := main_~z~0#1; {31#(or (and (>= oldRank0 0) (> oldRank0 (ite (> (+ |ULTIMATE.start_main_~z~0#1| (* (- 1) |ULTIMATE.start_main_~x~0#1|)) 0) 1 0))) (and (> oldRank1 (ite (> (+ |ULTIMATE.start_main_~z~0#1| (* (- 1) |ULTIMATE.start_main_~x~0#1|)) 0) (+ |ULTIMATE.start_main_~z~0#1| (* (- 1) |ULTIMATE.start_main_~x~0#1|)) (+ |ULTIMATE.start_main_~y~0#1| (* (- 1) |ULTIMATE.start_main_~x~0#1|)))) (>= oldRank0 (ite (> (+ |ULTIMATE.start_main_~z~0#1| (* (- 1) |ULTIMATE.start_main_~x~0#1|)) 0) 1 0)) (>= oldRank1 0)) unseeded)} is VALID
[2022-02-21 03:24:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-21 03:24:53,254 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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)
[2022-02-21 03:24:53,261 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2022-02-21 03:24:53,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,264 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,268 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates
[2022-02-21 03:24:53,270 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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)
[2022-02-21 03:24:53,322 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 16 states and 19 transitions. Complement of second has 5 states.
[2022-02-21 03:24:53,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states
[2022-02-21 03:24:53,323 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3
[2022-02-21 03:24:53,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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)
[2022-02-21 03:24:53,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2022-02-21 03:24:53,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-02-21 03:24:53,324 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-02-21 03:24:53,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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)
[2022-02-21 03:24:53,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2
[2022-02-21 03:24:53,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-02-21 03:24:53,327 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-02-21 03:24:53,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions.
[2022-02-21 03:24:53,329 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2022-02-21 03:24:53,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2022-02-21 03:24:53,330 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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)
[2022-02-21 03:24:53,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2022-02-21 03:24:53,332 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words.
[2022-02-21 03:24:53,332 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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)
[2022-02-21 03:24:53,333 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2
[2022-02-21 03:24:53,333 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words.
[2022-02-21 03:24:53,334 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 16 states and 19 transitions. cyclomatic complexity: 4
[2022-02-21 03:24:53,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. cyclomatic complexity: 4
[2022-02-21 03:24:53,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2022-02-21 03:24:53,334 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words.
[2022-02-21 03:24:53,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,335 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,335 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,335 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 1 letters. Loop has 1 letters.
[2022-02-21 03:24:53,336 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 1 letters. Loop has 1 letters.
[2022-02-21 03:24:53,336 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters.
[2022-02-21 03:24:53,336 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 16 letters. Loop has 16 letters.
[2022-02-21 03:24:53,337 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 16 letters. Loop has 16 letters.
[2022-02-21 03:24:53,337 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 16 letters. Loop has 16 letters.
[2022-02-21 03:24:53,337 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 7 letters. Loop has 7 letters.
[2022-02-21 03:24:53,338 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 7 letters. Loop has 7 letters.
[2022-02-21 03:24:53,338 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 7 letters. Loop has 7 letters.
[2022-02-21 03:24:53,338 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 4 letters. Loop has 4 letters.
[2022-02-21 03:24:53,339 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 4 letters. Loop has 4 letters.
[2022-02-21 03:24:53,339 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 4 letters.
[2022-02-21 03:24:53,339 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,340 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,340 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,341 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,341 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,341 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,342 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) Stem has 1 letters. Loop has 1 letters.
[2022-02-21 03:24:53,342 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Stem has 1 letters. Loop has 1 letters.
[2022-02-21 03:24:53,342 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 19 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters.
[2022-02-21 03:24:53,343 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,343 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3
[2022-02-21 03:24:53,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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)
[2022-02-21 03:24:53,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions.
[2022-02-21 03:24:53,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters.
[2022-02-21 03:24:53,377 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters.
[2022-02-21 03:24:53,377 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters.
[2022-02-21 03:24:53,378 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-02-21 03:24:53,379 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. cyclomatic complexity: 4
[2022-02-21 03:24:53,380 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2022-02-21 03:24:53,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions.
[2022-02-21 03:24:53,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2022-02-21 03:24:53,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2022-02-21 03:24:53,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2022-02-21 03:24:53,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-02-21 03:24:53,385 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-21 03:24:53,385 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-21 03:24:53,385 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-02-21 03:24:53,385 INFO L425 BuchiCegarLoop]: ======== Iteration 2============
[2022-02-21 03:24:53,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2022-02-21 03:24:53,385 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2022-02-21 03:24:53,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2022-02-21 03:24:53,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:24:53 BoogieIcfgContainer
[2022-02-21 03:24:53,391 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2022-02-21 03:24:53,392 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-02-21 03:24:53,392 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-02-21 03:24:53,392 INFO L275 PluginConnector]: Witness Printer initialized
[2022-02-21 03:24:53,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:51" (3/4) ...
[2022-02-21 03:24:53,395 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2022-02-21 03:24:53,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-02-21 03:24:53,397 INFO L158 Benchmark]: Toolchain (without parser) took 2184.02ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 55.7MB in the beginning and 83.2MB in the end (delta: -27.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-02-21 03:24:53,400 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory was 60.5MB in the beginning and 60.5MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-02-21 03:24:53,401 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
[2022-02-21 03:24:53,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.11ms. Allocated memory is still 90.2MB. Free memory was 55.4MB in the beginning and 67.8MB in the end (delta: -12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-02-21 03:24:53,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.83ms. Allocated memory is still 90.2MB. Free memory was 67.8MB in the beginning and 66.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-02-21 03:24:53,403 INFO L158 Benchmark]: Boogie Preprocessor took 24.26ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 65.6MB in the end (delta: 760.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-02-21 03:24:53,403 INFO L158 Benchmark]: RCFGBuilder took 159.92ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 57.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-02-21 03:24:53,404 INFO L158 Benchmark]: BuchiAutomizer took 1738.76ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 57.0MB in the beginning and 83.9MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-02-21 03:24:53,404 INFO L158 Benchmark]: Witness Printer took 3.67ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 83.2MB in the end (delta: 612.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-02-21 03:24:53,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- AssertionsEnabledResult: Assertions are enabled
Assertions are enabled
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory was 60.5MB in the beginning and 60.5MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 228.11ms. Allocated memory is still 90.2MB. Free memory was 55.4MB in the beginning and 67.8MB in the end (delta: -12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 22.83ms. Allocated memory is still 90.2MB. Free memory was 67.8MB in the beginning and 66.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 24.26ms. Allocated memory is still 90.2MB. Free memory was 66.4MB in the beginning and 65.6MB in the end (delta: 760.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 159.92ms. Allocated memory is still 90.2MB. Free memory was 65.3MB in the beginning and 57.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* BuchiAutomizer took 1738.76ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 57.0MB in the beginning and 83.9MB in the end (delta: -26.8MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 3.67ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 83.2MB in the end (delta: 612.0kB). Peak memory consumption was 2.1MB. 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 2-nested ranking function (if z + -1 * x > 0 then 1 else 0), (if z + -1 * x > 0 then z + -1 * x else y + -1 * x) and consists of 4 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp100 dnf100 smp100 tf109 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
[2022-02-21 03:24:53,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE