./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 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/Addition03-1.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 b2edae58c49fda124d3cdef0e9085ec6493b5502 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 05:43:14,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 05:43:14,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 05:43:14,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 05:43:14,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 05:43:14,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 05:43:14,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 05:43:14,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 05:43:14,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 05:43:14,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 05:43:14,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 05:43:14,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 05:43:14,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 05:43:14,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 05:43:14,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 05:43:14,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 05:43:14,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 05:43:14,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 05:43:14,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 05:43:14,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 05:43:14,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 05:43:14,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 05:43:14,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 05:43:14,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 05:43:14,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 05:43:14,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 05:43:14,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 05:43:14,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 05:43:14,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 05:43:14,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 05:43:14,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 05:43:14,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 05:43:14,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 05:43:14,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 05:43:14,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 05:43:14,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 05:43:14,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 05:43:14,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 05:43:14,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 05:43:14,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 05:43:14,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 05:43:14,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 05:43:15,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 05:43:15,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 05:43:15,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 05:43:15,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 05:43:15,062 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 05:43:15,062 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 05:43:15,063 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 05:43:15,063 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 05:43:15,063 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 05:43:15,064 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 05:43:15,065 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 05:43:15,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 05:43:15,066 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 05:43:15,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 05:43:15,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 05:43:15,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 05:43:15,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 05:43:15,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 05:43:15,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 05:43:15,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 05:43:15,068 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 05:43:15,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 05:43:15,069 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 05:43:15,069 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 05:43:15,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 05:43:15,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 05:43:15,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 05:43:15,070 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 05:43:15,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 05:43:15,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 05:43:15,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 05:43:15,071 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 05:43:15,074 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 05:43:15,074 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2edae58c49fda124d3cdef0e9085ec6493b5502 [2020-10-26 05:43:15,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 05:43:15,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 05:43:15,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 05:43:15,653 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 05:43:15,654 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 05:43:15,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-1.c [2020-10-26 05:43:15,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d3fb22d6/265991dddb7146c990855bf5c00e89ee/FLAGf2f969d47 [2020-10-26 05:43:16,553 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 05:43:16,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c [2020-10-26 05:43:16,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d3fb22d6/265991dddb7146c990855bf5c00e89ee/FLAGf2f969d47 [2020-10-26 05:43:16,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d3fb22d6/265991dddb7146c990855bf5c00e89ee [2020-10-26 05:43:16,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 05:43:16,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 05:43:16,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 05:43:16,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 05:43:16,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 05:43:16,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 05:43:16" (1/1) ... [2020-10-26 05:43:16,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:16, skipping insertion in model container [2020-10-26 05:43:16,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 05:43:16" (1/1) ... [2020-10-26 05:43:16,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 05:43:16,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 05:43:17,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 05:43:17,191 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 05:43:17,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 05:43:17,241 INFO L208 MainTranslator]: Completed translation [2020-10-26 05:43:17,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17 WrapperNode [2020-10-26 05:43:17,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 05:43:17,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 05:43:17,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 05:43:17,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 05:43:17,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (1/1) ... [2020-10-26 05:43:17,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (1/1) ... [2020-10-26 05:43:17,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 05:43:17,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 05:43:17,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 05:43:17,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 05:43:17,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (1/1) ... [2020-10-26 05:43:17,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (1/1) ... [2020-10-26 05:43:17,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (1/1) ... [2020-10-26 05:43:17,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (1/1) ... [2020-10-26 05:43:17,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (1/1) ... [2020-10-26 05:43:17,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (1/1) ... [2020-10-26 05:43:17,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (1/1) ... [2020-10-26 05:43:17,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 05:43:17,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 05:43:17,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 05:43:17,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 05:43:17,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 05:43:17,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 05:43:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 05:43:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 05:43:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-10-26 05:43:17,406 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-10-26 05:43:17,794 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 05:43:17,795 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-26 05:43:17,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 05:43:17 BoogieIcfgContainer [2020-10-26 05:43:17,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 05:43:17,800 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 05:43:17,800 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 05:43:17,806 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 05:43:17,808 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 05:43:17,809 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 05:43:16" (1/3) ... [2020-10-26 05:43:17,811 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b7207bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 05:43:17, skipping insertion in model container [2020-10-26 05:43:17,811 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 05:43:17,812 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 05:43:17" (2/3) ... [2020-10-26 05:43:17,812 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b7207bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 05:43:17, skipping insertion in model container [2020-10-26 05:43:17,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 05:43:17,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 05:43:17" (3/3) ... [2020-10-26 05:43:17,816 INFO L373 chiAutomizerObserver]: Analyzing ICFG Addition03-1.c [2020-10-26 05:43:17,889 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 05:43:17,890 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 05:43:17,890 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 05:43:17,890 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 05:43:17,890 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 05:43:17,891 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 05:43:17,891 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 05:43:17,891 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 05:43:17,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-10-26 05:43:18,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-26 05:43:18,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 05:43:18,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 05:43:18,036 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 05:43:18,037 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-26 05:43:18,037 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 05:43:18,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-10-26 05:43:18,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-26 05:43:18,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 05:43:18,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 05:43:18,047 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 05:43:18,048 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-26 05:43:18,060 INFO L794 eck$LassoCheckResult]: Stem: 12#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(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 9#L-1true havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 10#L31true call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 11#additionENTRYtrue [2020-10-26 05:43:18,062 INFO L796 eck$LassoCheckResult]: Loop: 11#additionENTRYtrue ~m := #in~m;~n := #in~n; 8#L16true assume !(0 == ~n); 4#L19true assume ~n > 0; 3#L20true call #t~ret7 := addition(1 + ~m, ~n - 1);< 11#additionENTRYtrue [2020-10-26 05:43:18,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:18,080 INFO L82 PathProgramCache]: Analyzing trace with hash 29888, now seen corresponding path program 1 times [2020-10-26 05:43:18,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:43:18,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75978925] [2020-10-26 05:43:18,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:43:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:18,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:18,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:18,378 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 05:43:18,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:18,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1450930, now seen corresponding path program 1 times [2020-10-26 05:43:18,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:43:18,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281440184] [2020-10-26 05:43:18,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:43:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:18,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:18,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:18,432 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 05:43:18,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:18,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1832919281, now seen corresponding path program 1 times [2020-10-26 05:43:18,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:43:18,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227967785] [2020-10-26 05:43:18,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:43:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:18,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:18,531 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:18,538 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 05:43:18,718 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 05:43:18,723 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 05:43:18,724 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 05:43:18,724 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 05:43:18,724 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 05:43:18,724 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:18,725 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 05:43:18,725 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 05:43:18,725 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2020-10-26 05:43:18,725 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 05:43:18,726 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 05:43:18,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:18,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:18,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:18,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:18,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:18,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:18,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:18,891 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 05:43:18,892 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:18,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:18,904 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:18,916 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 05:43:18,917 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_~m=0} Honda state: {addition_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:18,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:18,963 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,036 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 05:43:19,036 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 05:43:19,054 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 05:43:19,055 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=0} Honda state: {addition_#in~m=0} Generalized eigenvectors: [{addition_#in~m=-1}, {addition_#in~m=-1}, {addition_#in~m=3}] Lambdas: [1, 4, 1] Nus: [0, 1] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:19,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 05:43:19,113 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 05:43:19,113 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret8=0} Honda state: {addition_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:19,168 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:19,168 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,175 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 05:43:19,175 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:19,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:19,227 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:19,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 05:43:19,278 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,382 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 05:43:19,385 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 05:43:19,385 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 05:43:19,386 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 05:43:19,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 05:43:19,386 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 05:43:19,386 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,386 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 05:43:19,386 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 05:43:19,386 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2020-10-26 05:43:19,387 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 05:43:19,387 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 05:43:19,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:19,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:19,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:19,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:19,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:19,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:19,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:19,482 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 05:43:19,489 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:19,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:19,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:19,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:19,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:19,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:19,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:19,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:19,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:19,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:19,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:19,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:19,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:19,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:19,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:19,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:43:19,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:19,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:19,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:19,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:19,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:19,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:19,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:19,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:43:19,617 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:19,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:19,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:19,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:19,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:19,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:19,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:19,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:43:19,662 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:19,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:19,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:19,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:19,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:19,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:19,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:19,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:19,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:19,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:19,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:19,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:19,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:19,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:19,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:19,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:19,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,760 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:19,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:19,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:19,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:19,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:19,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:19,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:19,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:43:19,806 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 05:43:19,813 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 05:43:19,813 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:19,839 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 05:43:19,840 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 05:43:19,840 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 05:43:19,841 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_#in~n) = 1*addition_#in~n Supporting invariants [] Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:19,880 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 05:43:19,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:43:19,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 05:43:19,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 05:43:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:43:19,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 05:43:19,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 05:43:20,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 05:43:20,035 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 [2020-10-26 05:43:20,037 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states. Second operand 4 states. [2020-10-26 05:43:20,218 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states.. Second operand 4 states. Result 50 states and 68 transitions. Complement of second has 12 states. [2020-10-26 05:43:20,219 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 [2020-10-26 05:43:20,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 05:43:20,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-10-26 05:43:20,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 4 letters. [2020-10-26 05:43:20,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:43:20,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-26 05:43:20,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:43:20,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 8 letters. [2020-10-26 05:43:20,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:43:20,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2020-10-26 05:43:20,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-26 05:43:20,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 25 states and 28 transitions. [2020-10-26 05:43:20,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-10-26 05:43:20,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-10-26 05:43:20,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2020-10-26 05:43:20,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 05:43:20,245 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-10-26 05:43:20,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2020-10-26 05:43:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2020-10-26 05:43:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-26 05:43:20,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2020-10-26 05:43:20,287 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-10-26 05:43:20,287 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-10-26 05:43:20,287 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 05:43:20,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2020-10-26 05:43:20,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-26 05:43:20,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 05:43:20,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 05:43:20,290 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 05:43:20,290 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-26 05:43:20,290 INFO L794 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY #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(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 126#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 127#L31 call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 128#additionENTRY ~m := #in~m;~n := #in~n; 130#L16 assume !(0 == ~n); 137#L19 assume !(~n > 0); 138#L22 [2020-10-26 05:43:20,291 INFO L796 eck$LassoCheckResult]: Loop: 138#L22 assume ~n < 0; 134#L23 call #t~ret8 := addition(~m - 1, 1 + ~n);< 135#additionENTRY ~m := #in~m;~n := #in~n; 141#L16 assume !(0 == ~n); 140#L19 assume !(~n > 0); 138#L22 [2020-10-26 05:43:20,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:20,292 INFO L82 PathProgramCache]: Analyzing trace with hash 890410423, now seen corresponding path program 1 times [2020-10-26 05:43:20,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:43:20,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770704563] [2020-10-26 05:43:20,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:43:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:20,308 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:20,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:20,340 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 05:43:20,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:20,344 INFO L82 PathProgramCache]: Analyzing trace with hash 57513645, now seen corresponding path program 1 times [2020-10-26 05:43:20,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:43:20,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608940812] [2020-10-26 05:43:20,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:43:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:20,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:20,373 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:20,375 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 05:43:20,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:20,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1572724041, now seen corresponding path program 1 times [2020-10-26 05:43:20,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:43:20,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891457078] [2020-10-26 05:43:20,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:43:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:20,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:20,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:20,439 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 05:43:20,534 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 05:43:20,534 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 05:43:20,534 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 05:43:20,534 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 05:43:20,534 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 05:43:20,534 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:20,535 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 05:43:20,535 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 05:43:20,535 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2020-10-26 05:43:20,535 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 05:43:20,535 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 05:43:20,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:20,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:20,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:20,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:20,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:20,640 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 05:43:20,641 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:20,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:20,647 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:20,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 05:43:20,696 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:20,857 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 05:43:20,858 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-2, addition_~m=-2} Honda state: {addition_#in~m=-2, addition_~m=-2} Generalized eigenvectors: [{addition_#in~m=-2, addition_~m=-2}, {addition_#in~m=1, addition_~m=1}, {addition_#in~m=0, addition_~m=0}] Lambdas: [1, 1, 15] Nus: [0, 0] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:20,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:20,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 05:43:20,889 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 05:43:20,889 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:20,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:20,918 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:20,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 05:43:20,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 05:43:32,061 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 05:43:32,065 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 05:43:32,065 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 05:43:32,065 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 05:43:32,066 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 05:43:32,066 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 05:43:32,066 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:32,066 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 05:43:32,066 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 05:43:32,066 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2020-10-26 05:43:32,066 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 05:43:32,067 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 05:43:32,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:32,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:32,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:32,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:32,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:32,183 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 05:43:32,184 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:32,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:32,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:32,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:32,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:32,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:32,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:32,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:32,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:43:32,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:32,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:32,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:32,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:32,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:32,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:32,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:32,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:32,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:32,254 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:32,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:32,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:32,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:32,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:32,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:32,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:32,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:32,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:43:32,311 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:32,331 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 05:43:32,331 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:32,342 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 05:43:32,343 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 05:43:32,343 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 05:43:32,343 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = -1*addition_~n Supporting invariants [] Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:32,383 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 05:43:32,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:43:32,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 05:43:32,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 05:43:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:43:32,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 05:43:32,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 05:43:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 05:43:32,547 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-10-26 05:43:32,548 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-10-26 05:43:32,594 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 30 states and 35 transitions. Complement of second has 13 states. [2020-10-26 05:43:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-10-26 05:43:32,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-26 05:43:32,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-10-26 05:43:32,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 5 letters. [2020-10-26 05:43:32,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:43:32,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 11 letters. Loop has 5 letters. [2020-10-26 05:43:32,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:43:32,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 10 letters. [2020-10-26 05:43:32,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:43:32,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2020-10-26 05:43:32,600 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-26 05:43:32,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 25 states and 29 transitions. [2020-10-26 05:43:32,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-26 05:43:32,602 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-26 05:43:32,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2020-10-26 05:43:32,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 05:43:32,603 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2020-10-26 05:43:32,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2020-10-26 05:43:32,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-10-26 05:43:32,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-26 05:43:32,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-26 05:43:32,607 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-26 05:43:32,607 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-26 05:43:32,608 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 05:43:32,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 27 transitions. [2020-10-26 05:43:32,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-26 05:43:32,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 05:43:32,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 05:43:32,610 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 05:43:32,610 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-26 05:43:32,611 INFO L794 eck$LassoCheckResult]: Stem: 250#ULTIMATE.startENTRY #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(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 240#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 238#L31 call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 239#additionENTRY ~m := #in~m;~n := #in~n; 253#L16 assume !(0 == ~n); 254#L19 assume !(~n > 0); 256#L22 assume ~n < 0; 246#L23 call #t~ret8 := addition(~m - 1, 1 + ~n);< 245#additionENTRY ~m := #in~m;~n := #in~n; 247#L16 assume !(0 == ~n); 251#L19 assume ~n > 0; 242#L20 [2020-10-26 05:43:32,611 INFO L796 eck$LassoCheckResult]: Loop: 242#L20 call #t~ret7 := addition(1 + ~m, ~n - 1);< 241#additionENTRY ~m := #in~m;~n := #in~n; 244#L16 assume !(0 == ~n); 260#L19 assume ~n > 0; 242#L20 [2020-10-26 05:43:32,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:32,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1572724044, now seen corresponding path program 1 times [2020-10-26 05:43:32,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:43:32,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090843260] [2020-10-26 05:43:32,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:43:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:43:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 05:43:32,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090843260] [2020-10-26 05:43:32,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 05:43:32,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 05:43:32,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756258007] [2020-10-26 05:43:32,707 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 05:43:32,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:32,711 INFO L82 PathProgramCache]: Analyzing trace with hash 2042800, now seen corresponding path program 2 times [2020-10-26 05:43:32,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 05:43:32,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180205944] [2020-10-26 05:43:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 05:43:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:32,724 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 05:43:32,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 05:43:32,735 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 05:43:32,835 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 05:43:32,835 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 05:43:32,835 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 05:43:32,835 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 05:43:32,835 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 05:43:32,835 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:32,835 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 05:43:32,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 05:43:32,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2020-10-26 05:43:32,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 05:43:32,836 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 05:43:32,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:32,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:32,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:32,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:32,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:32,936 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 05:43:32,937 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:32,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:32,941 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:32,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 05:43:32,984 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:33,271 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 05:43:33,272 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-4, addition_~m=-4} Honda state: {addition_#in~m=-4, addition_~m=-4} Generalized eigenvectors: [{addition_#in~m=-3, addition_~m=-3}, {addition_#in~m=4, addition_~m=4}, {addition_#in~m=0, addition_~m=0}] Lambdas: [1, 1, 14] Nus: [0, 1] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:33,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:33,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 05:43:33,299 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 05:43:33,299 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret7=0} Honda state: {addition_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:33,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:33,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 05:43:33,332 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 05:43:33,332 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret8=0} Honda state: {addition_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:33,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:33,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 05:43:33,364 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 05:43:33,364 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:33,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 05:43:33,389 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:33,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 05:43:33,418 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-26 05:43:34,969 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 05:43:34,972 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 05:43:34,972 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 05:43:34,972 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 05:43:34,972 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 05:43:34,972 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 05:43:34,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:34,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 05:43:34,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 05:43:34,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2020-10-26 05:43:34,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 05:43:34,973 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 05:43:34,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:34,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:34,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:34,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:35,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 05:43:35,065 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 05:43:35,065 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:35,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:35,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:35,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:35,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:35,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:35,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:35,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:35,082 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:35,087 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:35,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:35,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:35,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:35,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:35,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:35,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:35,125 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:35,125 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:43:35,126 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:35,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:35,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:35,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:35,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:35,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:35,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:35,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:35,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 05:43:35,158 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 05:43:35,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 05:43:35,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 05:43:35,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 05:43:35,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 05:43:35,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 05:43:35,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 05:43:35,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 05:43:35,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:35,191 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 05:43:35,197 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 05:43:35,197 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 05:43:35,200 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 05:43:35,200 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 05:43:35,200 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 05:43:35,200 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = 1*addition_~n Supporting invariants [] [2020-10-26 05:43:35,222 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 05:43:35,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 05:43:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:43:35,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-26 05:43:35,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 05:43:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 05:43:35,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 05:43:35,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 05:43:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 05:43:35,332 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 [2020-10-26 05:43:35,332 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 27 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-10-26 05:43:35,435 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 27 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 55 states and 63 transitions. Complement of second has 9 states. [2020-10-26 05:43:35,437 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 [2020-10-26 05:43:35,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 05:43:35,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-26 05:43:35,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2020-10-26 05:43:35,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:43:35,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 4 letters. [2020-10-26 05:43:35,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:43:35,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 8 letters. [2020-10-26 05:43:35,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 05:43:35,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 63 transitions. [2020-10-26 05:43:35,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-26 05:43:35,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 47 states and 55 transitions. [2020-10-26 05:43:35,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-10-26 05:43:35,457 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-10-26 05:43:35,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 55 transitions. [2020-10-26 05:43:35,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-26 05:43:35,458 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 55 transitions. [2020-10-26 05:43:35,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 55 transitions. [2020-10-26 05:43:35,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2020-10-26 05:43:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-26 05:43:35,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2020-10-26 05:43:35,469 INFO L714 BuchiCegarLoop]: Abstraction has 41 states and 48 transitions. [2020-10-26 05:43:35,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 05:43:35,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 05:43:35,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 05:43:35,475 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 5 states. [2020-10-26 05:43:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 05:43:35,539 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-10-26 05:43:35,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 05:43:35,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 31 transitions. [2020-10-26 05:43:35,543 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 05:43:35,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2020-10-26 05:43:35,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 05:43:35,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 05:43:35,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 05:43:35,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 05:43:35,545 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 05:43:35,545 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 05:43:35,545 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 05:43:35,545 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 05:43:35,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 05:43:35,545 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 05:43:35,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 05:43:35,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 05:43:35 BoogieIcfgContainer [2020-10-26 05:43:35,553 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 05:43:35,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 05:43:35,554 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 05:43:35,554 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 05:43:35,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 05:43:17" (3/4) ... [2020-10-26 05:43:35,559 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 05:43:35,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 05:43:35,562 INFO L168 Benchmark]: Toolchain (without parser) took 18676.27 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 21.4 MB in the beginning and 35.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-10-26 05:43:35,562 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 26.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 05:43:35,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.56 ms. Allocated memory is still 44.0 MB. Free memory was 20.7 MB in the beginning and 20.9 MB in the end (delta: -214.7 kB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-10-26 05:43:35,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.23 ms. Allocated memory is still 44.0 MB. Free memory was 20.9 MB in the beginning and 19.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 05:43:35,565 INFO L168 Benchmark]: Boogie Preprocessor took 32.01 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.5 MB in the beginning and 39.0 MB in the end (delta: -19.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-10-26 05:43:35,565 INFO L168 Benchmark]: RCFGBuilder took 478.28 ms. Allocated memory is still 54.5 MB. Free memory was 39.0 MB in the beginning and 27.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-10-26 05:43:35,566 INFO L168 Benchmark]: BuchiAutomizer took 17752.86 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.0 MB in the beginning and 35.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-10-26 05:43:35,567 INFO L168 Benchmark]: Witness Printer took 5.50 ms. Allocated memory is still 67.1 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 05:43:35,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 26.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 348.56 ms. Allocated memory is still 44.0 MB. Free memory was 20.7 MB in the beginning and 20.9 MB in the end (delta: -214.7 kB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.23 ms. Allocated memory is still 44.0 MB. Free memory was 20.9 MB in the beginning and 19.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.01 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.5 MB in the beginning and 39.0 MB in the end (delta: -19.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 478.28 ms. Allocated memory is still 54.5 MB. Free memory was 39.0 MB in the beginning and 27.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 17752.86 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 27.0 MB in the beginning and 35.8 MB in the end (delta: -8.8 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.50 ms. Allocated memory is still 67.1 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. One deterministic module has affine ranking function -1 * n and consists of 5 locations. One deterministic module has affine ranking function n and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 16.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 23 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 37 SDtfs, 51 SDslu, 17 SDs, 0 SdLazy, 87 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf93 smp91 dnf100 smp100 tf110 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 13.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...