./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/Addition01-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e19ca921 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/Addition01-2.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 4af9e26294eb81d37b6ccb692d0b40e4bed5b0d6d3dd72d6af1a80634692c297 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 20:26:50,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 20:26:50,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 20:26:51,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 20:26:51,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 20:26:51,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 20:26:51,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 20:26:51,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 20:26:51,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 20:26:51,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 20:26:51,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 20:26:51,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 20:26:51,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 20:26:51,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 20:26:51,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 20:26:51,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 20:26:51,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 20:26:51,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 20:26:51,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 20:26:51,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 20:26:51,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 20:26:51,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 20:26:51,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 20:26:51,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 20:26:51,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 20:26:51,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 20:26:51,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 20:26:51,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 20:26:51,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 20:26:51,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 20:26:51,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 20:26:51,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 20:26:51,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 20:26:51,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 20:26:51,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 20:26:51,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 20:26:51,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 20:26:51,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 20:26:51,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 20:26:51,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 20:26:51,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 20:26:51,122 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-22 20:26:51,158 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 20:26:51,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 20:26:51,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 20:26:51,160 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 20:26:51,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 20:26:51,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 20:26:51,162 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 20:26:51,162 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-22 20:26:51,162 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-22 20:26:51,162 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-22 20:26:51,163 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-22 20:26:51,164 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-22 20:26:51,164 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-22 20:26:51,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 20:26:51,164 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 20:26:51,164 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 20:26:51,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 20:26:51,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 20:26:51,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 20:26:51,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-22 20:26:51,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-22 20:26:51,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-22 20:26:51,166 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 20:26:51,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 20:26:51,167 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-22 20:26:51,168 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 20:26:51,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-22 20:26:51,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 20:26:51,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 20:26:51,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 20:26:51,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 20:26:51,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 20:26:51,170 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-22 20:26:51,171 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4af9e26294eb81d37b6ccb692d0b40e4bed5b0d6d3dd72d6af1a80634692c297 [2021-12-22 20:26:51,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 20:26:51,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 20:26:51,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 20:26:51,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 20:26:51,435 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 20:26:51,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition01-2.c [2021-12-22 20:26:51,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47a2975dc/310aaae55a4a43e394fcac41d622db1c/FLAGc604e9942 [2021-12-22 20:26:51,961 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 20:26:51,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition01-2.c [2021-12-22 20:26:51,971 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47a2975dc/310aaae55a4a43e394fcac41d622db1c/FLAGc604e9942 [2021-12-22 20:26:52,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47a2975dc/310aaae55a4a43e394fcac41d622db1c [2021-12-22 20:26:52,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 20:26:52,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 20:26:52,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 20:26:52,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 20:26:52,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 20:26:52,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75873812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52, skipping insertion in model container [2021-12-22 20:26:52,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 20:26:52,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 20:26:52,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition01-2.c[1126,1139] [2021-12-22 20:26:52,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:26:52,601 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 20:26:52,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition01-2.c[1126,1139] [2021-12-22 20:26:52,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 20:26:52,634 INFO L208 MainTranslator]: Completed translation [2021-12-22 20:26:52,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52 WrapperNode [2021-12-22 20:26:52,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 20:26:52,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 20:26:52,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 20:26:52,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 20:26:52,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,665 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2021-12-22 20:26:52,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 20:26:52,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 20:26:52,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 20:26:52,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 20:26:52,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 20:26:52,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 20:26:52,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 20:26:52,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 20:26:52,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (1/1) ... [2021-12-22 20:26:52,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:52,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:52,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:52,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-22 20:26:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 20:26:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 20:26:52,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 20:26:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 20:26:52,771 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-12-22 20:26:52,772 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-12-22 20:26:52,824 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 20:26:52,826 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 20:26:52,974 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 20:26:52,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 20:26:52,979 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 20:26:52,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:26:52 BoogieIcfgContainer [2021-12-22 20:26:52,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 20:26:52,982 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-22 20:26:52,982 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-22 20:26:52,985 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-22 20:26:52,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:26:52,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.12 08:26:52" (1/3) ... [2021-12-22 20:26:52,987 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55dcdc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:26:52, skipping insertion in model container [2021-12-22 20:26:52,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:26:52,987 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:26:52" (2/3) ... [2021-12-22 20:26:52,987 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55dcdc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.12 08:26:52, skipping insertion in model container [2021-12-22 20:26:52,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-22 20:26:52,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:26:52" (3/3) ... [2021-12-22 20:26:52,989 INFO L388 chiAutomizerObserver]: Analyzing ICFG Addition01-2.c [2021-12-22 20:26:53,067 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-22 20:26:53,067 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-22 20:26:53,068 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-22 20:26:53,068 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-22 20:26:53,068 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-22 20:26:53,068 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-22 20:26:53,068 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-22 20:26:53,068 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-22 20:26:53,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-22 20:26:53,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 20:26:53,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:53,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:53,118 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-22 20:26:53,119 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-22 20:26:53,119 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-22 20:26:53,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-22 20:26:53,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 20:26:53,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:53,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:53,122 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-22 20:26:53,122 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-22 20:26:53,128 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 6#L30true assume !(main_~m~0#1 < 0 || main_~m~0#1 > 1073741823);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 12#L36true assume !(main_~n~0#1 < 0 || main_~n~0#1 > 1073741823); 19#L41true call main_#t~ret8#1 := addition(main_~m~0#1, main_~n~0#1);< 10#additionENTRYtrue [2021-12-22 20:26:53,128 INFO L793 eck$LassoCheckResult]: Loop: 10#additionENTRYtrue ~m := #in~m;~n := #in~n; 8#L16true assume !(0 == ~n); 16#L19true assume ~n > 0; 17#L20true call #t~ret4 := addition(1 + ~m, ~n - 1);< 10#additionENTRYtrue [2021-12-22 20:26:53,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:53,137 INFO L85 PathProgramCache]: Analyzing trace with hash 28695875, now seen corresponding path program 1 times [2021-12-22 20:26:53,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:53,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347985941] [2021-12-22 20:26:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:53,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:53,240 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:53,275 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:53,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:53,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1697202, now seen corresponding path program 1 times [2021-12-22 20:26:53,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:53,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131596232] [2021-12-22 20:26:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:53,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:53,295 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:53,356 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:53,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:53,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1295733236, now seen corresponding path program 1 times [2021-12-22 20:26:53,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:53,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673763996] [2021-12-22 20:26:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:53,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:53,392 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:53,425 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:53,572 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:26:53,573 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:26:53,573 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:26:53,573 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:26:53,573 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-22 20:26:53,574 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:53,574 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:26:53,574 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:26:53,574 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration1_Loop [2021-12-22 20:26:53,574 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:26:53,574 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:26:53,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:53,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:53,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:53,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:53,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:53,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:53,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:53,654 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 20:26:53,657 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-22 20:26:53,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:53,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:53,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:53,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:26:53,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:53,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-22 20:26:53,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:26:53,703 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret4=0} Honda state: {addition_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 20:26:53,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:53,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:53,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:53,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:53,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-22 20:26:53,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:26:53,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:53,755 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:26:53,756 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_~m=0} Honda state: {addition_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 20:26:53,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:53,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:53,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:53,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-22 20:26:53,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:26:53,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:53,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:53,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:53,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:53,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:53,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 20:26:53,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:53,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-22 20:26:53,866 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:26:53,867 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=-5}, {addition_#in~m=0}, {addition_#in~m=6}] Lambdas: [1, 6, 1] Nus: [1, 0] [2021-12-22 20:26:53,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:53,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:53,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:53,899 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:53,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-22 20:26:53,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:26:53,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:53,945 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:26:53,946 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 20:26:53,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:53,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:53,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:53,975 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:53,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-22 20:26:53,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:26:53,978 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:54,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:54,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:54,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:54,028 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:54,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 20:26:54,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:54,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-22 20:26:54,087 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-22 20:26:54,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:54,096 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:26:54,096 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:26:54,096 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:26:54,096 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:26:54,096 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 20:26:54,097 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:54,097 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:26:54,097 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:26:54,097 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration1_Loop [2021-12-22 20:26:54,097 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:26:54,097 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:26:54,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:54,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:54,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:54,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:54,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:54,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:54,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:54,182 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 20:26:54,186 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 20:26:54,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:54,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:54,189 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:54,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-22 20:26:54,191 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:26:54,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:26:54,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:26:54,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:26:54,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:26:54,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:26:54,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:26:54,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:26:54,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:26:54,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:54,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:54,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:54,239 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:54,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-22 20:26:54,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:26:54,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:26:54,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:26:54,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:26:54,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:26:54,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:26:54,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:26:54,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:26:54,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:26:54,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:54,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:54,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:54,293 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:54,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-22 20:26:54,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:26:54,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:26:54,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:26:54,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:26:54,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:26:54,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:26:54,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:26:54,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:26:54,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:26:54,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:54,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:54,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:54,347 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:54,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:26:54,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:26:54,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:26:54,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:26:54,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:26:54,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:26:54,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:26:54,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:26:54,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-22 20:26:54,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:26:54,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:54,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:54,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:54,404 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:54,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-22 20:26:54,410 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:26:54,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:26:54,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:26:54,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:26:54,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:26:54,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:26:54,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:26:54,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:26:54,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:26:54,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:54,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:54,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:54,463 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:54,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:26:54,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:26:54,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:26:54,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:26:54,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:26:54,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:26:54,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:26:54,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:26:54,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-22 20:26:54,499 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 20:26:54,503 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-22 20:26:54,503 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-22 20:26:54,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:54,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:54,506 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:54,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-22 20:26:54,508 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 20:26:54,508 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-22 20:26:54,508 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 20:26:54,509 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_#in~n) = 1*addition_#in~n Supporting invariants [] [2021-12-22 20:26:54,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:54,538 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-22 20:26:54,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:26:54,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 20:26:54,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:26:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:26:54,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 20:26:54,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:26:54,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:26:54,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:54,693 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-22 20:26:54,694 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:54,768 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 21 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 54 states and 73 transitions. Complement of second has 12 states. [2021-12-22 20:26:54,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-22 20:26:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:54,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-12-22 20:26:54,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-22 20:26:54,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:26:54,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 4 letters. [2021-12-22 20:26:54,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:26:54,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 8 letters. [2021-12-22 20:26:54,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:26:54,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 73 transitions. [2021-12-22 20:26:54,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 20:26:54,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 27 states and 30 transitions. [2021-12-22 20:26:54,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-22 20:26:54,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-12-22 20:26:54,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 30 transitions. [2021-12-22 20:26:54,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 20:26:54,787 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-12-22 20:26:54,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 30 transitions. [2021-12-22 20:26:54,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2021-12-22 20:26:54,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:26:54,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-12-22 20:26:54,807 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-22 20:26:54,807 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-22 20:26:54,807 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-22 20:26:54,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-12-22 20:26:54,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 20:26:54,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-22 20:26:54,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-22 20:26:54,808 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 20:26:54,808 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-22 20:26:54,808 INFO L791 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 144#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~result~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 145#L30 assume !(main_~m~0#1 < 0 || main_~m~0#1 > 1073741823);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 146#L36 assume !(main_~n~0#1 < 0 || main_~n~0#1 > 1073741823); 140#L41 call main_#t~ret8#1 := addition(main_~m~0#1, main_~n~0#1);< 142#additionENTRY ~m := #in~m;~n := #in~n; 148#L16 assume !(0 == ~n); 149#L19 assume !(~n > 0); 147#L22 [2021-12-22 20:26:54,809 INFO L793 eck$LassoCheckResult]: Loop: 147#L22 assume ~n < 0; 137#L23 call #t~ret5 := addition(~m - 1, 1 + ~n);< 139#additionENTRY ~m := #in~m;~n := #in~n; 154#L16 assume !(0 == ~n); 153#L19 assume !(~n > 0); 147#L22 [2021-12-22 20:26:54,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:54,809 INFO L85 PathProgramCache]: Analyzing trace with hash 180345180, now seen corresponding path program 1 times [2021-12-22 20:26:54,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:54,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806836547] [2021-12-22 20:26:54,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:54,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:26:54,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:26:54,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 20:26:54,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806836547] [2021-12-22 20:26:54,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806836547] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 20:26:54,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 20:26:54,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 20:26:54,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615167045] [2021-12-22 20:26:54,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 20:26:54,920 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-22 20:26:54,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:26:54,922 INFO L85 PathProgramCache]: Analyzing trace with hash 65148085, now seen corresponding path program 1 times [2021-12-22 20:26:54,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 20:26:54,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486993438] [2021-12-22 20:26:54,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 20:26:54,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 20:26:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:54,929 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 20:26:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 20:26:54,940 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 20:26:55,055 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:26:55,055 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:26:55,055 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:26:55,055 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:26:55,055 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-22 20:26:55,055 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:55,056 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:26:55,056 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:26:55,056 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration2_Loop [2021-12-22 20:26:55,056 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:26:55,056 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:26:55,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:55,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:55,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:55,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:55,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:26:55,121 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 20:26:55,122 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-22 20:26:55,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:55,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:55,128 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:55,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:26:55,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:55,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-22 20:26:55,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:55,183 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:55,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:55,185 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:55,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-22 20:26:55,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 20:26:55,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:55,375 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:26:55,375 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-1, addition_~m=-8} Honda state: {addition_#in~m=-1, addition_~m=-8} Generalized eigenvectors: [{addition_#in~m=-1, addition_~m=-1}, {addition_#in~m=1, addition_~m=0}, {addition_#in~m=-8, addition_~m=0}] Lambdas: [1, 8, 0] Nus: [0, 1] [2021-12-22 20:26:55,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:55,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:55,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:55,404 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:55,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-22 20:26:55,406 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:26:55,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:55,420 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:26:55,421 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret4=0} Honda state: {addition_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 20:26:55,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-22 20:26:55,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:55,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:55,439 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:55,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-22 20:26:55,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:26:55,444 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:55,451 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:26:55,451 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret5=0} Honda state: {addition_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 20:26:55,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:55,468 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:55,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:55,469 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:55,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-22 20:26:55,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:26:55,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:55,480 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-22 20:26:55,480 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-22 20:26:55,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:55,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:55,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:55,499 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:55,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-22 20:26:55,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-22 20:26:55,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:55,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-22 20:26:55,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:26:55,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:26:55,567 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:26:55,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-22 20:26:55,574 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-22 20:26:55,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-22 20:27:00,856 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-22 20:27:00,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-22 20:27:00,862 INFO L210 LassoAnalysis]: Preferences: [2021-12-22 20:27:00,862 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-22 20:27:00,862 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-22 20:27:00,862 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-22 20:27:00,862 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-22 20:27:00,862 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:27:00,862 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-22 20:27:00,862 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-22 20:27:00,862 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition01-2.c_Iteration2_Loop [2021-12-22 20:27:00,862 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-22 20:27:00,862 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-22 20:27:00,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:27:00,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:27:00,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:27:00,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:27:00,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-22 20:27:00,933 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-22 20:27:00,934 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-22 20:27:00,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:27:00,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:27:00,935 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:27:00,943 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:27:00,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:27:00,950 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:27:00,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:27:00,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:27:00,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:27:00,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:27:00,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:27:00,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-22 20:27:00,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:27:00,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-22 20:27:00,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:27:00,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:27:00,995 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:27:00,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-22 20:27:00,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:27:01,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:27:01,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:27:01,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:27:01,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:27:01,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:27:01,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:27:01,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:27:01,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:27:01,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-22 20:27:01,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:27:01,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:27:01,046 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:27:01,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:27:01,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:27:01,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:27:01,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:27:01,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:27:01,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:27:01,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:27:01,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:27:01,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-22 20:27:01,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:27:01,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-22 20:27:01,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:27:01,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:27:01,093 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:27:01,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-22 20:27:01,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:27:01,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:27:01,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:27:01,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:27:01,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:27:01,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:27:01,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:27:01,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:27:01,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-22 20:27:01,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-22 20:27:01,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:27:01,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:27:01,121 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:27:01,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-22 20:27:01,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-22 20:27:01,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-22 20:27:01,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-22 20:27:01,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-22 20:27:01,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-22 20:27:01,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-22 20:27:01,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-22 20:27:01,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-22 20:27:01,159 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-22 20:27:01,170 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-22 20:27:01,170 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-22 20:27:01,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-22 20:27:01,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 20:27:01,171 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-22 20:27:01,174 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-22 20:27:01,174 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-22 20:27:01,175 INFO L513 LassoAnalysis]: Proved termination. [2021-12-22 20:27:01,175 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = -1*addition_~n Supporting invariants [] [2021-12-22 20:27:01,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-22 20:27:01,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-22 20:27:01,204 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-22 20:27:01,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 20:27:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:27:01,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 20:27:01,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:27:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 20:27:01,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 20:27:01,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 20:27:01,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 20:27:01,339 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 [2021-12-22 20:27:01,340 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:27:01,375 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 37 transitions. Complement of second has 13 states. [2021-12-22 20:27:01,376 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 [2021-12-22 20:27:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:27:01,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-12-22 20:27:01,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 5 letters. [2021-12-22 20:27:01,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:27:01,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 13 letters. Loop has 5 letters. [2021-12-22 20:27:01,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:27:01,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 10 letters. [2021-12-22 20:27:01,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-22 20:27:01,380 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2021-12-22 20:27:01,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-22 20:27:01,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 27 states and 31 transitions. [2021-12-22 20:27:01,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-22 20:27:01,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-22 20:27:01,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 31 transitions. [2021-12-22 20:27:01,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-22 20:27:01,389 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-12-22 20:27:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 31 transitions. [2021-12-22 20:27:01,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-12-22 20:27:01,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:27:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-12-22 20:27:01,393 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-12-22 20:27:01,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 20:27:01,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 20:27:01,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 20:27:01,397 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 20:27:01,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 20:27:01,435 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2021-12-22 20:27:01,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 20:27:01,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2021-12-22 20:27:01,438 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 20:27:01,438 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2021-12-22 20:27:01,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-22 20:27:01,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-22 20:27:01,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-22 20:27:01,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-22 20:27:01,439 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 20:27:01,439 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 20:27:01,439 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 20:27:01,439 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-22 20:27:01,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-22 20:27:01,439 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-22 20:27:01,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-22 20:27:01,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.12 08:27:01 BoogieIcfgContainer [2021-12-22 20:27:01,450 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-22 20:27:01,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 20:27:01,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 20:27:01,451 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 20:27:01,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:26:52" (3/4) ... [2021-12-22 20:27:01,455 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 20:27:01,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 20:27:01,456 INFO L158 Benchmark]: Toolchain (without parser) took 9076.95ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 66.7MB in the beginning and 78.8MB in the end (delta: -12.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-12-22 20:27:01,457 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:27:01,457 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.89ms. Allocated memory is still 94.4MB. Free memory was 66.4MB in the beginning and 71.6MB in the end (delta: -5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 20:27:01,461 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.92ms. Allocated memory is still 94.4MB. Free memory was 71.6MB in the beginning and 70.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 20:27:01,463 INFO L158 Benchmark]: Boogie Preprocessor took 31.10ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 69.3MB in the end (delta: 702.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:27:01,464 INFO L158 Benchmark]: RCFGBuilder took 282.43ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 60.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 20:27:01,464 INFO L158 Benchmark]: BuchiAutomizer took 8468.54ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 60.2MB in the beginning and 78.8MB in the end (delta: -18.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-12-22 20:27:01,464 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 119.5MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 20:27:01,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.89ms. Allocated memory is still 94.4MB. Free memory was 66.4MB in the beginning and 71.6MB in the end (delta: -5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.92ms. Allocated memory is still 94.4MB. Free memory was 71.6MB in the beginning and 70.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.10ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 69.3MB in the end (delta: 702.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 282.43ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 60.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 8468.54ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 60.2MB in the beginning and 78.8MB in the end (delta: -18.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 119.5MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 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. 1 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 7.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 30 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf93 smp86 dnf100 smp100 tf111 neg97 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-22 20:27:01,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-22 20:27:01,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE