./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive/gcd01-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 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/gcd01-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ceea5216a7b51ee21eab36f0e9b129c25f18193871fb4ca0aa52ef8740fc0ce8 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:39:56,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:39:56,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:39:56,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:39:56,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:39:56,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:39:56,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:39:56,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:39:56,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:39:56,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:39:56,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:39:56,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:39:56,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:39:56,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:39:56,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:39:56,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:39:56,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:39:56,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:39:56,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:39:56,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:39:56,120 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:39:56,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:39:56,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:39:56,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:39:56,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:39:56,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:39:56,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:39:56,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:39:56,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:39:56,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:39:56,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:39:56,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:39:56,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:39:56,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:39:56,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:39:56,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:39:56,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:39:56,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:39:56,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:39:56,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:39:56,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:39:56,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:39:56,154 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:39:56,188 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:39:56,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:39:56,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:39:56,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:39:56,191 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:39:56,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:39:56,192 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:39:56,192 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:39:56,192 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:39:56,193 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:39:56,193 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:39:56,194 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:39:56,194 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:39:56,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:39:56,194 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:39:56,194 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:39:56,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:39:56,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:39:56,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:39:56,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:39:56,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:39:56,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:39:56,196 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:39:56,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:39:56,197 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:39:56,197 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:39:56,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:39:56,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:39:56,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:39:56,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:39:56,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:39:56,201 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:39:56,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ceea5216a7b51ee21eab36f0e9b129c25f18193871fb4ca0aa52ef8740fc0ce8 [2022-07-22 02:39:56,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:39:56,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:39:56,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:39:56,566 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:39:56,567 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:39:56,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/gcd01-1.c [2022-07-22 02:39:56,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bfaf97f1/190c51dfead24a3f9d11d81086a6b079/FLAG70bc46845 [2022-07-22 02:39:57,019 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:39:57,020 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd01-1.c [2022-07-22 02:39:57,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bfaf97f1/190c51dfead24a3f9d11d81086a6b079/FLAG70bc46845 [2022-07-22 02:39:57,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bfaf97f1/190c51dfead24a3f9d11d81086a6b079 [2022-07-22 02:39:57,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:39:57,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:39:57,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:39:57,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:39:57,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:39:57,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b3433f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57, skipping insertion in model container [2022-07-22 02:39:57,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:39:57,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:39:57,229 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/gcd01-1.c[1008,1021] [2022-07-22 02:39:57,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:39:57,253 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:39:57,309 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/gcd01-1.c[1008,1021] [2022-07-22 02:39:57,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:39:57,333 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:39:57,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57 WrapperNode [2022-07-22 02:39:57,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:39:57,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:39:57,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:39:57,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:39:57,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,363 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2022-07-22 02:39:57,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:39:57,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:39:57,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:39:57,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:39:57,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:39:57,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:39:57,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:39:57,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:39:57,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (1/1) ... [2022-07-22 02:39:57,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:57,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:57,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:57,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 02:39:57,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:39:57,487 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2022-07-22 02:39:57,487 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2022-07-22 02:39:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:39:57,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:39:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:39:57,551 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:39:57,552 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:39:57,662 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:39:57,667 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:39:57,667 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 02:39:57,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:39:57 BoogieIcfgContainer [2022-07-22 02:39:57,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:39:57,670 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:39:57,670 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:39:57,673 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:39:57,674 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:39:57,674 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:39:57" (1/3) ... [2022-07-22 02:39:57,675 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6221833c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:39:57, skipping insertion in model container [2022-07-22 02:39:57,675 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:39:57,675 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:39:57" (2/3) ... [2022-07-22 02:39:57,676 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6221833c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:39:57, skipping insertion in model container [2022-07-22 02:39:57,676 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:39:57,676 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:39:57" (3/3) ... [2022-07-22 02:39:57,677 INFO L354 chiAutomizerObserver]: Analyzing ICFG gcd01-1.c [2022-07-22 02:39:57,752 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:39:57,753 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:39:57,753 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:39:57,753 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:39:57,753 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:39:57,753 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:39:57,753 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:39:57,754 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:39:57,764 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) [2022-07-22 02:39:57,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-07-22 02:39:57,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:57,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:57,808 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-22 02:39:57,808 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-22 02:39:57,808 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:39:57,824 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) [2022-07-22 02:39:57,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-07-22 02:39:57,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:57,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:57,840 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-22 02:39:57,840 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-22 02:39:57,856 INFO L752 eck$LassoCheckResult]: Stem: 3#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(10, 2);call #Ultimate.allocInit(12, 3); 9#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_~z~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 10#L32true assume !(main_~m~0#1 <= 0 || main_~m~0#1 > 2147483647);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 11#L36true assume !(main_~n~0#1 <= 0 || main_~n~0#1 > 2147483647); 21#L39true call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 22#gcdENTRYtrue [2022-07-22 02:39:57,856 INFO L754 eck$LassoCheckResult]: Loop: 22#gcdENTRYtrue ~y1 := #in~y1;~y2 := #in~y2; 6#L18true assume !(~y1 <= 0 || ~y2 <= 0); 12#L21true assume !(~y1 == ~y2); 18#L24true assume !(~y1 > ~y2); 17#L27true call #t~ret5 := gcd(~y1, ~y2 - ~y1);< 22#gcdENTRYtrue [2022-07-22 02:39:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:57,863 INFO L85 PathProgramCache]: Analyzing trace with hash 45873351, now seen corresponding path program 1 times [2022-07-22 02:39:57,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:57,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679387973] [2022-07-22 02:39:57,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:57,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:57,988 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:58,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:58,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:58,039 INFO L85 PathProgramCache]: Analyzing trace with hash 28756482, now seen corresponding path program 1 times [2022-07-22 02:39:58,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:58,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292398761] [2022-07-22 02:39:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:58,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:58,056 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:58,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:58,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:58,076 INFO L85 PathProgramCache]: Analyzing trace with hash -6988548, now seen corresponding path program 1 times [2022-07-22 02:39:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:58,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70440124] [2022-07-22 02:39:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:58,122 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:58,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:58,301 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:39:58,302 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:39:58,302 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:39:58,303 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:39:58,303 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:39:58,303 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:58,303 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:39:58,303 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:39:58,304 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration1_Loop [2022-07-22 02:39:58,304 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:39:58,304 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:39:58,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,416 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:39:58,417 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:39:58,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:58,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:58,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:58,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-22 02:39:58,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:39:58,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:39:58,447 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:39:58,448 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:39:58,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-22 02:39:58,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:58,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:58,477 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:58,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-22 02:39:58,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:39:58,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:39:58,497 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:39:58,497 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:39:58,525 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 [2022-07-22 02:39:58,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:58,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:58,527 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:58,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:39:58,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:39:58,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-22 02:39:58,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-22 02:39:58,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:58,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:58,566 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:58,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-22 02:39:58,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:39:58,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:39:58,712 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:39:58,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-22 02:39:58,718 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:39:58,718 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:39:58,718 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:39:58,718 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:39:58,718 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:39:58,718 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:58,718 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:39:58,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:39:58,719 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration1_Loop [2022-07-22 02:39:58,719 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:39:58,719 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:39:58,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:58,804 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:39:58,808 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:39:58,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:58,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:58,812 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:58,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-22 02:39:58,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:39:58,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:39:58,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:39:58,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:39:58,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:39:58,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:39:58,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:39:58,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:39:58,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:39:58,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-22 02:39:58,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:58,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:58,867 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:58,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-22 02:39:58,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:39:58,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:39:58,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:39:58,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:39:58,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:39:58,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:39:58,879 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:39:58,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:39:58,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:39:58,896 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 [2022-07-22 02:39:58,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:58,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:58,898 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:58,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-22 02:39:58,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:39:58,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:39:58,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:39:58,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:39:58,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:39:58,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:39:58,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:39:58,908 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:39:58,944 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:39:58,967 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:39:58,968 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:39:58,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:58,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:58,970 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:58,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-22 02:39:58,972 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:39:58,972 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:39:58,972 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:39:58,972 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_#in~y2) = 1*gcd_#in~y2 Supporting invariants [] [2022-07-22 02:39:58,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-22 02:39:58,991 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:39:59,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:39:59,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:39:59,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:39:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:39:59,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 02:39:59,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:39:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:39:59,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-22 02:39:59,174 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 [2022-07-22 02:39:59,175 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, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-22 02:39:59,282 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, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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 71 states and 98 transitions. Complement of second has 18 states. [2022-07-22 02:39:59,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2022-07-22 02:39:59,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-22 02:39:59,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2022-07-22 02:39:59,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 5 letters. [2022-07-22 02:39:59,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:39:59,291 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 10 letters. Loop has 5 letters. [2022-07-22 02:39:59,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:39:59,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 10 letters. [2022-07-22 02:39:59,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:39:59,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 98 transitions. [2022-07-22 02:39:59,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 02:39:59,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 28 states and 32 transitions. [2022-07-22 02:39:59,302 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-07-22 02:39:59,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-07-22 02:39:59,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2022-07-22 02:39:59,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:39:59,303 INFO L369 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-07-22 02:39:59,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2022-07-22 02:39:59,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2022-07-22 02:39:59,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:39:59,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-07-22 02:39:59,325 INFO L392 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-07-22 02:39:59,326 INFO L374 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-07-22 02:39:59,326 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:39:59,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2022-07-22 02:39:59,326 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 02:39:59,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:39:59,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:39:59,327 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-22 02:39:59,327 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-22 02:39:59,327 INFO L752 eck$LassoCheckResult]: Stem: 165#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(10, 2);call #Ultimate.allocInit(12, 3); 166#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_~z~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 180#L32 assume !(main_~m~0#1 <= 0 || main_~m~0#1 > 2147483647);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 181#L36 assume !(main_~n~0#1 <= 0 || main_~n~0#1 > 2147483647); 170#L39 call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 182#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 173#L18 [2022-07-22 02:39:59,328 INFO L754 eck$LassoCheckResult]: Loop: 173#L18 assume !(~y1 <= 0 || ~y2 <= 0); 174#L21 assume !(~y1 == ~y2); 178#L24 assume ~y1 > ~y2; 167#L25 call #t~ret4 := gcd(~y1 - ~y2, ~y2);< 169#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 173#L18 [2022-07-22 02:39:59,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:59,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1422073881, now seen corresponding path program 1 times [2022-07-22 02:39:59,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:59,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775992982] [2022-07-22 02:39:59,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:59,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:59,337 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:59,343 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:59,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:59,344 INFO L85 PathProgramCache]: Analyzing trace with hash 32573467, now seen corresponding path program 1 times [2022-07-22 02:39:59,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:59,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604062918] [2022-07-22 02:39:59,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:59,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:59,350 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:59,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:59,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:39:59,355 INFO L85 PathProgramCache]: Analyzing trace with hash -216647933, now seen corresponding path program 1 times [2022-07-22 02:39:59,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:39:59,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222402538] [2022-07-22 02:39:59,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:39:59,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:39:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:59,364 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:39:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:39:59,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:39:59,459 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:39:59,459 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:39:59,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:39:59,460 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:39:59,461 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:39:59,461 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:59,461 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:39:59,461 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:39:59,461 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration2_Loop [2022-07-22 02:39:59,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:39:59,461 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:39:59,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:59,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:59,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:59,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:39:59,539 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:39:59,540 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:39:59,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:59,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:59,544 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:59,555 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:39:59,555 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:39:59,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-22 02:39:59,576 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:39:59,576 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:39:59,602 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 [2022-07-22 02:39:59,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:59,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:59,604 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:39:59,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:39:59,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:39:59,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-22 02:39:59,634 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:39:59,634 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:39:59,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-22 02:39:59,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:59,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:59,663 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) [2022-07-22 02:39:59,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:39:59,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:39:59,679 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 [2022-07-22 02:39:59,699 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:39:59,700 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:39:59,727 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 [2022-07-22 02:39:59,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:59,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:59,729 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) [2022-07-22 02:39:59,730 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 [2022-07-22 02:39:59,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:39:59,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:39:59,791 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 [2022-07-22 02:39:59,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:39:59,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:39:59,793 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) [2022-07-22 02:39:59,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:39:59,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:39:59,821 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 [2022-07-22 02:40:01,580 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:40:01,585 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 [2022-07-22 02:40:01,586 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:40:01,586 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:40:01,586 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:40:01,586 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:40:01,586 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:40:01,586 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:01,586 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:40:01,586 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:40:01,586 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration2_Loop [2022-07-22 02:40:01,586 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:40:01,586 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:40:01,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:01,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:01,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:01,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:01,657 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:40:01,657 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:40:01,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:01,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:01,659 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) [2022-07-22 02:40:01,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:40:01,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:40:01,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:40:01,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:40:01,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:40:01,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:40:01,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:40:01,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:40:01,681 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 [2022-07-22 02:40:01,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:40:01,713 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 [2022-07-22 02:40:01,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:01,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:01,715 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) [2022-07-22 02:40:01,715 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 [2022-07-22 02:40:01,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:40:01,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:40:01,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:40:01,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:40:01,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:40:01,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:40:01,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:40:01,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:40:01,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:40:01,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-07-22 02:40:01,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:01,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:01,751 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) [2022-07-22 02:40:01,752 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 [2022-07-22 02:40:01,756 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:40:01,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:40:01,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:40:01,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:40:01,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:40:01,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:40:01,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:40:01,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:40:01,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:40:01,806 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 [2022-07-22 02:40:01,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:01,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:01,808 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) [2022-07-22 02:40:01,812 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 [2022-07-22 02:40:01,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:40:01,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:40:01,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:40:01,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:40:01,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:40:01,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:40:01,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:40:01,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:40:01,838 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:40:01,842 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:40:01,842 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:40:01,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:01,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:01,843 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) [2022-07-22 02:40:01,844 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 [2022-07-22 02:40:01,847 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:40:01,847 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:40:01,848 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:40:01,848 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2022-07-22 02:40:01,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-22 02:40:01,865 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:40:01,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:40:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:40:01,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:40:01,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:40:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:40:01,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 02:40:01,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:40:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:40:02,004 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 [2022-07-22 02:40:02,004 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 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-07-22 02:40:02,040 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 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 54 states and 61 transitions. Complement of second has 15 states. [2022-07-22 02:40:02,047 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 [2022-07-22 02:40:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-07-22 02:40:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-07-22 02:40:02,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 5 letters. [2022-07-22 02:40:02,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:40:02,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2022-07-22 02:40:02,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:40:02,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 10 letters. [2022-07-22 02:40:02,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:40:02,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 61 transitions. [2022-07-22 02:40:02,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 02:40:02,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 33 states and 37 transitions. [2022-07-22 02:40:02,058 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-07-22 02:40:02,058 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-22 02:40:02,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 37 transitions. [2022-07-22 02:40:02,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 02:40:02,059 INFO L369 hiAutomatonCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-07-22 02:40:02,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 37 transitions. [2022-07-22 02:40:02,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2022-07-22 02:40:02,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.15) internal successors, (23), 19 states have internal predecessors, (23), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:40:02,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-07-22 02:40:02,061 INFO L392 hiAutomatonCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-07-22 02:40:02,061 INFO L374 stractBuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-07-22 02:40:02,061 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 02:40:02,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 28 transitions. [2022-07-22 02:40:02,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 02:40:02,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:40:02,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:40:02,062 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 02:40:02,063 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-22 02:40:02,063 INFO L752 eck$LassoCheckResult]: Stem: 305#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(10, 2);call #Ultimate.allocInit(12, 3); 306#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_~z~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 321#L32 assume !(main_~m~0#1 <= 0 || main_~m~0#1 > 2147483647);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 322#L36 assume !(main_~n~0#1 <= 0 || main_~n~0#1 > 2147483647); 316#L39 call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 324#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 325#L18 assume !(~y1 <= 0 || ~y2 <= 0); 323#L21 assume !(~y1 == ~y2); 320#L24 assume !(~y1 > ~y2); 308#L27 call #t~ret5 := gcd(~y1, ~y2 - ~y1);< 317#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 312#L18 [2022-07-22 02:40:02,063 INFO L754 eck$LassoCheckResult]: Loop: 312#L18 assume !(~y1 <= 0 || ~y2 <= 0); 313#L21 assume !(~y1 == ~y2); 319#L24 assume ~y1 > ~y2; 307#L25 call #t~ret4 := gcd(~y1 - ~y2, ~y2);< 309#gcdENTRY ~y1 := #in~y1;~y2 := #in~y2; 312#L18 [2022-07-22 02:40:02,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:40:02,063 INFO L85 PathProgramCache]: Analyzing trace with hash -216644988, now seen corresponding path program 2 times [2022-07-22 02:40:02,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:40:02,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002795148] [2022-07-22 02:40:02,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:40:02,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:40:02,071 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 [2022-07-22 02:40:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:40:02,073 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:40:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:40:02,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:40:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:40:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash 32573467, now seen corresponding path program 2 times [2022-07-22 02:40:02,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:40:02,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613040330] [2022-07-22 02:40:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:40:02,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:40:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:40:02,087 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:40:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:40:02,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:40:02,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:40:02,091 INFO L85 PathProgramCache]: Analyzing trace with hash 201252728, now seen corresponding path program 1 times [2022-07-22 02:40:02,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:40:02,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645363695] [2022-07-22 02:40:02,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:40:02,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:40:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:40:02,104 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:40:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:40:02,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:40:02,214 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:40:02,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:40:02,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:40:02,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:40:02,214 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:40:02,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:02,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:40:02,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:40:02,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration3_Loop [2022-07-22 02:40:02,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:40:02,215 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:40:02,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:02,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:02,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:02,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:02,290 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:40:02,290 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:40:02,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:02,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:02,291 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) [2022-07-22 02:40:02,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:40:02,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:40:02,325 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 [2022-07-22 02:40:02,350 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 [2022-07-22 02:40:02,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:02,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:02,351 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) [2022-07-22 02:40:02,352 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 [2022-07-22 02:40:02,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:40:02,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:40:04,140 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:40:04,145 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 [2022-07-22 02:40:04,145 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:40:04,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:40:04,145 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:40:04,146 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:40:04,146 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:40:04,146 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:04,146 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:40:04,146 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:40:04,146 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-1.c_Iteration3_Loop [2022-07-22 02:40:04,146 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:40:04,146 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:40:04,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:04,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:04,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:04,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:40:04,211 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:40:04,212 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:40:04,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:04,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:04,213 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) [2022-07-22 02:40:04,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:40:04,220 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 [2022-07-22 02:40:04,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:40:04,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:40:04,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:40:04,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:40:04,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:40:04,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:40:04,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:40:04,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:40:04,247 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 [2022-07-22 02:40:04,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:04,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:04,248 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) [2022-07-22 02:40:04,249 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 [2022-07-22 02:40:04,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:40:04,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:40:04,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:40:04,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:40:04,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:40:04,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:40:04,257 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:40:04,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:40:04,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:40:04,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-22 02:40:04,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:04,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:04,276 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) [2022-07-22 02:40:04,277 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 [2022-07-22 02:40:04,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:40:04,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:40:04,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:40:04,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:40:04,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:40:04,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:40:04,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:40:04,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:40:04,290 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:40:04,293 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 02:40:04,293 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 02:40:04,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:40:04,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:40:04,295 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) [2022-07-22 02:40:04,295 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 [2022-07-22 02:40:04,297 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:40:04,297 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:40:04,297 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:40:04,297 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2022-07-22 02:40:04,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-07-22 02:40:04,314 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:40:04,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:40:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:40:04,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 02:40:04,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:40:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:40:04,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 02:40:04,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:40:04,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-22 02:40:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:40:04,431 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 [2022-07-22 02:40:04,431 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:40:04,460 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 51 transitions. Complement of second has 15 states. [2022-07-22 02:40:04,461 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 [2022-07-22 02:40:04,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:40:04,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-07-22 02:40:04,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2022-07-22 02:40:04,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:40:04,463 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 02:40:04,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:40:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:40:04,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 02:40:04,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:40:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:40:04,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 02:40:04,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:40:04,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:40:04,576 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-22 02:40:04,577 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:40:04,605 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 51 transitions. Complement of second has 15 states. [2022-07-22 02:40:04,605 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 [2022-07-22 02:40:04,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:40:04,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-07-22 02:40:04,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2022-07-22 02:40:04,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:40:04,607 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 02:40:04,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:40:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:40:04,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 02:40:04,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:40:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:40:04,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 02:40:04,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:40:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:40:04,723 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-22 02:40:04,724 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6 Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:40:04,768 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 28 transitions. cyclomatic complexity: 6. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 86 transitions. Complement of second has 17 states. [2022-07-22 02:40:04,768 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 [2022-07-22 02:40:04,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:40:04,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2022-07-22 02:40:04,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 5 letters. [2022-07-22 02:40:04,773 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:40:04,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 16 letters. Loop has 5 letters. [2022-07-22 02:40:04,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:40:04,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 10 letters. [2022-07-22 02:40:04,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:40:04,775 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 86 transitions. [2022-07-22 02:40:04,778 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:40:04,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2022-07-22 02:40:04,778 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 02:40:04,778 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 02:40:04,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 02:40:04,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:40:04,778 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:40:04,778 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:40:04,779 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:40:04,779 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 02:40:04,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 02:40:04,779 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:40:04,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 02:40:04,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:40:04 BoogieIcfgContainer [2022-07-22 02:40:04,785 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:40:04,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:40:04,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:40:04,785 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:40:04,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:39:57" (3/4) ... [2022-07-22 02:40:04,787 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 02:40:04,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:40:04,788 INFO L158 Benchmark]: Toolchain (without parser) took 7742.53ms. Allocated memory was 50.3MB in the beginning and 79.7MB in the end (delta: 29.4MB). Free memory was 29.4MB in the beginning and 58.2MB in the end (delta: -28.8MB). Peak memory consumption was 367.2kB. Max. memory is 16.1GB. [2022-07-22 02:40:04,789 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 50.3MB. Free memory was 31.7MB in the beginning and 31.6MB in the end (delta: 58.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:40:04,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.66ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 29.2MB in the beginning and 49.0MB in the end (delta: -19.8MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-07-22 02:40:04,789 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.30ms. Allocated memory is still 65.0MB. Free memory was 48.8MB in the beginning and 47.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:40:04,790 INFO L158 Benchmark]: Boogie Preprocessor took 32.23ms. Allocated memory is still 65.0MB. Free memory was 47.5MB in the beginning and 46.6MB in the end (delta: 937.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:40:04,790 INFO L158 Benchmark]: RCFGBuilder took 270.74ms. Allocated memory is still 65.0MB. Free memory was 46.6MB in the beginning and 37.3MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 02:40:04,790 INFO L158 Benchmark]: BuchiAutomizer took 7114.53ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 37.3MB in the beginning and 59.0MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:40:04,791 INFO L158 Benchmark]: Witness Printer took 2.38ms. Allocated memory is still 79.7MB. Free memory was 59.0MB in the beginning and 58.2MB in the end (delta: 729.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 02:40:04,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 50.3MB. Free memory was 31.7MB in the beginning and 31.6MB in the end (delta: 58.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.66ms. Allocated memory was 50.3MB in the beginning and 65.0MB in the end (delta: 14.7MB). Free memory was 29.2MB in the beginning and 49.0MB in the end (delta: -19.8MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.30ms. Allocated memory is still 65.0MB. Free memory was 48.8MB in the beginning and 47.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.23ms. Allocated memory is still 65.0MB. Free memory was 47.5MB in the beginning and 46.6MB in the end (delta: 937.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 270.74ms. Allocated memory is still 65.0MB. Free memory was 46.6MB in the beginning and 37.3MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 7114.53ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 37.3MB in the beginning and 59.0MB in the end (delta: -21.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.38ms. Allocated memory is still 79.7MB. Free memory was 59.0MB in the beginning and 58.2MB in the end (delta: 729.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(y2) and consists of 6 locations. One deterministic module has affine ranking function y1 and consists of 5 locations. One nondeterministic module has affine ranking function y1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.0s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 5.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 52 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf91 smp92 dnf100 smp100 tf106 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 02:40:04,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE