./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/gcd01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a31fd051 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/termination-numeric/gcd01-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:14:42,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:14:42,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:14:42,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:14:42,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:14:42,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:14:42,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:14:42,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:14:42,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:14:42,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:14:42,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:14:42,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:14:42,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:14:42,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:14:42,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:14:42,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:14:42,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:14:42,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:14:42,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:14:42,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:14:42,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:14:42,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:14:42,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:14:42,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:14:42,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:14:42,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:14:42,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:14:42,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:14:42,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:14:42,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:14:42,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:14:42,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:14:42,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:14:42,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:14:42,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:14:42,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:14:42,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:14:42,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:14:42,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:14:42,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:14:42,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:14:42,846 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 14:14:42,863 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:14:42,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:14:42,864 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:14:42,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:14:42,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:14:42,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:14:42,865 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:14:42,865 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 14:14:42,865 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 14:14:42,865 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 14:14:42,866 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 14:14:42,866 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 14:14:42,866 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 14:14:42,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:14:42,867 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:14:42,867 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:14:42,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:14:42,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 14:14:42,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 14:14:42,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 14:14:42,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:14:42,868 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 14:14:42,868 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:14:42,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 14:14:42,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:14:42,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:14:42,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:14:42,869 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:14:42,870 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 14:14:42,870 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb [2023-02-15 14:14:43,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:14:43,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:14:43,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:14:43,091 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:14:43,091 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:14:43,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/gcd01-2.c [2023-02-15 14:14:43,972 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:14:44,136 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:14:44,137 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/gcd01-2.c [2023-02-15 14:14:44,141 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6192eb540/45528c8116354265849716519312056c/FLAG516eca8ca [2023-02-15 14:14:44,149 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6192eb540/45528c8116354265849716519312056c [2023-02-15 14:14:44,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:14:44,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:14:44,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:14:44,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:14:44,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:14:44,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597c3f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44, skipping insertion in model container [2023-02-15 14:14:44,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:14:44,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:14:44,253 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/gcd01-2.c[974,987] [2023-02-15 14:14:44,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:14:44,261 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:14:44,270 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/gcd01-2.c[974,987] [2023-02-15 14:14:44,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:14:44,278 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:14:44,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44 WrapperNode [2023-02-15 14:14:44,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:14:44,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:14:44,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:14:44,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:14:44,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,298 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-02-15 14:14:44,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:14:44,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:14:44,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:14:44,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:14:44,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,309 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:14:44,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:14:44,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:14:44,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:14:44,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (1/1) ... [2023-02-15 14:14:44,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:44,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:44,330 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) [2023-02-15 14:14:44,344 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 [2023-02-15 14:14:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 14:14:44,360 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2023-02-15 14:14:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2023-02-15 14:14:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:14:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:14:44,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 14:14:44,404 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:14:44,405 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:14:44,535 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:14:44,539 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:14:44,539 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 14:14:44,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:44 BoogieIcfgContainer [2023-02-15 14:14:44,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:14:44,550 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 14:14:44,550 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 14:14:44,553 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 14:14:44,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:14:44,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:14:44" (1/3) ... [2023-02-15 14:14:44,554 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bf48f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:14:44, skipping insertion in model container [2023-02-15 14:14:44,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:14:44,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:44" (2/3) ... [2023-02-15 14:14:44,554 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3bf48f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:14:44, skipping insertion in model container [2023-02-15 14:14:44,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:14:44,555 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:44" (3/3) ... [2023-02-15 14:14:44,555 INFO L332 chiAutomizerObserver]: Analyzing ICFG gcd01-2.c [2023-02-15 14:14:44,617 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 14:14:44,618 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 14:14:44,618 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 14:14:44,618 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 14:14:44,618 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 14:14:44,618 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 14:14:44,621 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 14:14:44,622 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 14:14:44,625 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) [2023-02-15 14:14:44,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-15 14:14:44,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:14:44,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:14:44,644 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-15 14:14:44,644 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-02-15 14:14:44,644 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 14:14:44,644 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) [2023-02-15 14:14:44,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-15 14:14:44,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:14:44,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:14:44,648 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-15 14:14:44,648 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-02-15 14:14:44,654 INFO L748 eck$LassoCheckResult]: Stem: 16#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 8#L32true assume !(main_~m~0#1 <= 0);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 9#L36true assume !(main_~n~0#1 <= 0); 22#L39true call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 19#$Ultimate##0true [2023-02-15 14:14:44,655 INFO L750 eck$LassoCheckResult]: Loop: 19#$Ultimate##0true ~y1 := #in~y1;~y2 := #in~y2; 5#L18true assume !(~y1 <= 0 || ~y2 <= 0); 10#L21true assume !(~y1 == ~y2); 18#L24true assume !(~y1 > ~y2); 17#L27true call #t~ret5 := gcd(~y1, ~y2 - ~y1);< 19#$Ultimate##0true [2023-02-15 14:14:44,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:44,662 INFO L85 PathProgramCache]: Analyzing trace with hash 45873351, now seen corresponding path program 1 times [2023-02-15 14:14:44,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:44,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121958822] [2023-02-15 14:14:44,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:44,745 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:44,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:44,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:44,793 INFO L85 PathProgramCache]: Analyzing trace with hash 28756482, now seen corresponding path program 1 times [2023-02-15 14:14:44,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:44,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173011866] [2023-02-15 14:14:44,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:44,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:44,809 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:44,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:44,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:44,815 INFO L85 PathProgramCache]: Analyzing trace with hash -6988548, now seen corresponding path program 1 times [2023-02-15 14:14:44,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:44,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584093509] [2023-02-15 14:14:44,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:44,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:44,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:44,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:44,973 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:14:44,973 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:14:44,974 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:14:44,974 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:14:44,974 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:14:44,974 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:44,974 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:14:44,974 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:14:44,974 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration1_Loop [2023-02-15 14:14:44,975 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:14:44,975 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:14:44,985 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:44,994 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:44,997 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,025 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,028 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,030 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,082 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:14:45,083 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:14:45,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:45,087 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) [2023-02-15 14:14:45,088 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 [2023-02-15 14:14:45,089 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:45,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:45,119 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:45,120 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:14:45,125 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 [2023-02-15 14:14:45,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:45,127 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) [2023-02-15 14:14:45,129 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 [2023-02-15 14:14:45,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:45,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:45,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:45,169 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:14:45,174 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 [2023-02-15 14:14:45,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:45,176 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) [2023-02-15 14:14:45,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:45,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:45,190 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 [2023-02-15 14:14:45,210 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 [2023-02-15 14:14:45,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:45,214 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) [2023-02-15 14:14:45,216 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 [2023-02-15 14:14:45,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:14:45,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:45,310 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:14:45,315 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 [2023-02-15 14:14:45,315 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:14:45,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:14:45,315 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:14:45,316 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:14:45,316 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:14:45,316 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,316 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:14:45,316 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:14:45,316 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration1_Loop [2023-02-15 14:14:45,316 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:14:45,316 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:14:45,317 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,319 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,321 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,330 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,333 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,334 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,387 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:14:45,391 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:14:45,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:45,393 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) [2023-02-15 14:14:45,395 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 [2023-02-15 14:14:45,396 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 [2023-02-15 14:14:45,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:45,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:45,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:45,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:45,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:45,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:45,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:45,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:45,422 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 [2023-02-15 14:14:45,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:45,423 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) [2023-02-15 14:14:45,424 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 [2023-02-15 14:14:45,428 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 [2023-02-15 14:14:45,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:45,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:45,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:45,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:45,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:45,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:45,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:45,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:45,447 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 [2023-02-15 14:14:45,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:45,448 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) [2023-02-15 14:14:45,449 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 [2023-02-15 14:14:45,451 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 [2023-02-15 14:14:45,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:45,457 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:45,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:45,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:45,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:45,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:45,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:45,468 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:14:45,471 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 14:14:45,471 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 14:14:45,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:45,474 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) [2023-02-15 14:14:45,475 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 [2023-02-15 14:14:45,476 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:14:45,476 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 14:14:45,476 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:14:45,477 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_#in~y2) = 1*gcd_#in~y2 Supporting invariants [] [2023-02-15 14:14:45,481 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 [2023-02-15 14:14:45,483 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 14:14:45,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:45,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 14:14:45,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:45,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 14:14:45,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:45,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:14:45,629 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-15 14:14:45,631 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) [2023-02-15 14:14:45,728 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. [2023-02-15 14:14:45,730 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 [2023-02-15 14:14:45,734 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) [2023-02-15 14:14:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2023-02-15 14:14:45,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 5 letters. [2023-02-15 14:14:45,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:45,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 10 letters. Loop has 5 letters. [2023-02-15 14:14:45,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:45,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 5 letters. Loop has 10 letters. [2023-02-15 14:14:45,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:45,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 98 transitions. [2023-02-15 14:14:45,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-15 14:14:45,753 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 28 states and 32 transitions. [2023-02-15 14:14:45,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-02-15 14:14:45,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-02-15 14:14:45,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 32 transitions. [2023-02-15 14:14:45,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 14:14:45,754 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-02-15 14:14:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 32 transitions. [2023-02-15 14:14:45,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2023-02-15 14:14:45,770 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) [2023-02-15 14:14:45,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2023-02-15 14:14:45,771 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-02-15 14:14:45,771 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2023-02-15 14:14:45,772 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 14:14:45,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2023-02-15 14:14:45,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-15 14:14:45,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:14:45,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:14:45,774 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-02-15 14:14:45,774 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-02-15 14:14:45,774 INFO L748 eck$LassoCheckResult]: Stem: 174#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); 175#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_~m~0#1, main_~n~0#1, main_~z~0#1;main_~m~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 179#L32 assume !(main_~m~0#1 <= 0);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 180#L36 assume !(main_~n~0#1 <= 0); 167#L39 call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 181#$Ultimate##0 ~y1 := #in~y1;~y2 := #in~y2; 170#L18 [2023-02-15 14:14:45,774 INFO L750 eck$LassoCheckResult]: Loop: 170#L18 assume !(~y1 <= 0 || ~y2 <= 0); 171#L21 assume !(~y1 == ~y2); 177#L24 assume ~y1 > ~y2; 164#L25 call #t~ret4 := gcd(~y1 - ~y2, ~y2);< 166#$Ultimate##0 ~y1 := #in~y1;~y2 := #in~y2; 170#L18 [2023-02-15 14:14:45,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:45,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1422073881, now seen corresponding path program 1 times [2023-02-15 14:14:45,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:45,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021538749] [2023-02-15 14:14:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:45,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:45,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-15 14:14:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:45,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:45,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:45,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:45,811 INFO L85 PathProgramCache]: Analyzing trace with hash 32573467, now seen corresponding path program 1 times [2023-02-15 14:14:45,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:45,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442260650] [2023-02-15 14:14:45,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:45,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:45,816 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:45,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:45,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:45,820 INFO L85 PathProgramCache]: Analyzing trace with hash -216647933, now seen corresponding path program 1 times [2023-02-15 14:14:45,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:45,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026035566] [2023-02-15 14:14:45,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:45,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:45,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:45,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:45,893 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:14:45,893 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:14:45,894 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:14:45,894 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:14:45,894 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:14:45,894 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,894 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:14:45,894 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:14:45,894 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration2_Loop [2023-02-15 14:14:45,894 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:14:45,894 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:14:45,895 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,896 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,898 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,899 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:45,940 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:14:45,940 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:14:45,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:45,941 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) [2023-02-15 14:14:45,943 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 [2023-02-15 14:14:45,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:45,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:45,965 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:45,965 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret4=0} Honda state: {gcd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:14:45,968 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 [2023-02-15 14:14:45,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:45,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:45,969 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) [2023-02-15 14:14:45,971 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 [2023-02-15 14:14:45,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:45,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:45,993 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:45,993 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#t~ret5=0} Honda state: {gcd_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:14:46,000 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 [2023-02-15 14:14:46,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:46,001 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) [2023-02-15 14:14:46,003 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 [2023-02-15 14:14:46,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:46,004 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:46,025 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:14:46,025 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {gcd_#res=0} Honda state: {gcd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-15 14:14:46,030 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 [2023-02-15 14:14:46,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:46,031 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) [2023-02-15 14:14:46,033 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 [2023-02-15 14:14:46,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:46,034 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:46,055 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 [2023-02-15 14:14:46,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:46,056 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) [2023-02-15 14:14:46,057 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 [2023-02-15 14:14:46,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:14:46,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:46,415 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:14:46,419 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 [2023-02-15 14:14:46,420 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:14:46,420 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:14:46,420 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:14:46,420 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:14:46,420 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:14:46,420 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,420 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:14:46,420 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:14:46,421 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration2_Loop [2023-02-15 14:14:46,421 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:14:46,421 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:14:46,421 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:46,434 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:46,442 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:46,444 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:46,495 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:14:46,496 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:14:46,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:46,497 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) [2023-02-15 14:14:46,499 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 [2023-02-15 14:14:46,501 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 [2023-02-15 14:14:46,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:46,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:46,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:46,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:46,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:46,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:46,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:46,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:46,523 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 [2023-02-15 14:14:46,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:46,525 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) [2023-02-15 14:14:46,527 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 [2023-02-15 14:14:46,528 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 [2023-02-15 14:14:46,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:46,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:46,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:46,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:46,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:46,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:46,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:46,552 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:46,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-15 14:14:46,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:46,559 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) [2023-02-15 14:14:46,561 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 [2023-02-15 14:14:46,562 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 [2023-02-15 14:14:46,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:46,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:46,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:46,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:46,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:46,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:46,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:46,600 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:46,605 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 [2023-02-15 14:14:46,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:46,607 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) [2023-02-15 14:14:46,610 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 [2023-02-15 14:14:46,611 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 [2023-02-15 14:14:46,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:46,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:46,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:46,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:46,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:46,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:46,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:46,632 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:14:46,635 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 14:14:46,635 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 14:14:46,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:46,636 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) [2023-02-15 14:14:46,638 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 [2023-02-15 14:14:46,639 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:14:46,639 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 14:14:46,639 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:14:46,639 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2023-02-15 14:14:46,642 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 [2023-02-15 14:14:46,642 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 14:14:46,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:46,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 14:14:46,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:46,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 14:14:46,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:46,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:14:46,711 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-15 14:14:46,712 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) [2023-02-15 14:14:46,730 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. [2023-02-15 14:14:46,730 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 [2023-02-15 14:14:46,731 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) [2023-02-15 14:14:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-02-15 14:14:46,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 5 letters. [2023-02-15 14:14:46,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:46,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2023-02-15 14:14:46,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:46,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 6 letters. Loop has 10 letters. [2023-02-15 14:14:46,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:46,732 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 61 transitions. [2023-02-15 14:14:46,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-15 14:14:46,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 33 states and 37 transitions. [2023-02-15 14:14:46,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-02-15 14:14:46,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-15 14:14:46,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 37 transitions. [2023-02-15 14:14:46,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 14:14:46,733 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-02-15 14:14:46,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 37 transitions. [2023-02-15 14:14:46,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2023-02-15 14:14:46,735 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) [2023-02-15 14:14:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2023-02-15 14:14:46,735 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-02-15 14:14:46,735 INFO L428 stractBuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-02-15 14:14:46,735 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 14:14:46,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 28 transitions. [2023-02-15 14:14:46,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-15 14:14:46,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:14:46,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:14:46,736 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:14:46,736 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-02-15 14:14:46,736 INFO L748 eck$LassoCheckResult]: Stem: 316#$Ultimate##0 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); 317#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; 320#L32 assume !(main_~m~0#1 <= 0);main_~n~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 321#L36 assume !(main_~n~0#1 <= 0); 311#L39 call main_#t~ret8#1 := gcd(main_~m~0#1, main_~n~0#1);< 323#$Ultimate##0 ~y1 := #in~y1;~y2 := #in~y2; 310#L18 assume !(~y1 <= 0 || ~y2 <= 0); 313#L21 assume !(~y1 == ~y2); 322#L24 assume !(~y1 > ~y2); 304#L27 call #t~ret5 := gcd(~y1, ~y2 - ~y1);< 315#$Ultimate##0 ~y1 := #in~y1;~y2 := #in~y2; 308#L18 [2023-02-15 14:14:46,736 INFO L750 eck$LassoCheckResult]: Loop: 308#L18 assume !(~y1 <= 0 || ~y2 <= 0); 309#L21 assume !(~y1 == ~y2); 318#L24 assume ~y1 > ~y2; 303#L25 call #t~ret4 := gcd(~y1 - ~y2, ~y2);< 305#$Ultimate##0 ~y1 := #in~y1;~y2 := #in~y2; 308#L18 [2023-02-15 14:14:46,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:46,736 INFO L85 PathProgramCache]: Analyzing trace with hash -216644988, now seen corresponding path program 2 times [2023-02-15 14:14:46,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:46,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687305785] [2023-02-15 14:14:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:46,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:46,743 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:46,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:46,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:46,749 INFO L85 PathProgramCache]: Analyzing trace with hash 32573467, now seen corresponding path program 2 times [2023-02-15 14:14:46,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:46,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122922765] [2023-02-15 14:14:46,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:46,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:46,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:46,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:46,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:46,755 INFO L85 PathProgramCache]: Analyzing trace with hash 201252728, now seen corresponding path program 1 times [2023-02-15 14:14:46,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:14:46,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217783870] [2023-02-15 14:14:46,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:14:46,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:14:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:46,762 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:14:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:14:46,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:14:46,818 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:14:46,818 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:14:46,818 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:14:46,818 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:14:46,818 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:14:46,818 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,818 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:14:46,818 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:14:46,818 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration3_Loop [2023-02-15 14:14:46,818 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:14:46,818 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:14:46,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:46,826 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:46,827 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:46,828 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:46,861 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:14:46,861 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:14:46,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:46,862 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) [2023-02-15 14:14:46,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:14:46,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:46,882 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 [2023-02-15 14:14:46,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-15 14:14:46,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:46,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:46,921 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) [2023-02-15 14:14:46,941 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 [2023-02-15 14:14:46,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:14:46,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:14:47,299 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:14:47,305 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 [2023-02-15 14:14:47,306 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:14:47,306 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:14:47,306 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:14:47,306 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:14:47,306 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:14:47,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:47,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:14:47,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:14:47,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: gcd01-2.c_Iteration3_Loop [2023-02-15 14:14:47,306 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:14:47,306 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:14:47,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:47,310 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:47,312 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:47,329 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:14:47,367 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:14:47,367 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:14:47,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:47,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:47,369 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) [2023-02-15 14:14:47,371 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 [2023-02-15 14:14:47,373 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 [2023-02-15 14:14:47,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:47,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:47,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:47,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:47,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:47,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:47,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:47,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:47,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-02-15 14:14:47,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:47,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:47,391 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) [2023-02-15 14:14:47,399 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 [2023-02-15 14:14:47,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:47,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:47,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:47,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:47,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:47,408 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 [2023-02-15 14:14:47,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:47,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:47,415 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 [2023-02-15 14:14:47,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:14:47,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-15 14:14:47,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:47,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:47,422 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) [2023-02-15 14:14:47,423 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 [2023-02-15 14:14:47,425 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 [2023-02-15 14:14:47,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:14:47,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:14:47,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:14:47,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:14:47,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:14:47,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:14:47,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:14:47,441 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:14:47,445 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 14:14:47,445 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 14:14:47,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:14:47,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:14:47,446 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) [2023-02-15 14:14:47,448 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 [2023-02-15 14:14:47,449 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:14:47,449 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 14:14:47,449 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:14:47,449 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(gcd_~y1) = 1*gcd_~y1 Supporting invariants [] [2023-02-15 14:14:47,452 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 [2023-02-15 14:14:47,452 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 14:14:47,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:47,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:14:47,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:47,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 14:14:47,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:14:47,532 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-15 14:14:47,532 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) [2023-02-15 14:14:47,549 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. [2023-02-15 14:14:47,549 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 [2023-02-15 14:14:47,550 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) [2023-02-15 14:14:47,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-02-15 14:14:47,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2023-02-15 14:14:47,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:47,550 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-15 14:14:47,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:47,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:47,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:14:47,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:47,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 14:14:47,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:47,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:14:47,623 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-15 14:14:47,623 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) [2023-02-15 14:14:47,637 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. [2023-02-15 14:14:47,637 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 [2023-02-15 14:14:47,638 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) [2023-02-15 14:14:47,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-02-15 14:14:47,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 5 letters. [2023-02-15 14:14:47,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:47,639 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-15 14:14:47,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:14:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:47,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:14:47,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:14:47,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 14:14:47,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:14:47,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:14:47,716 INFO L141 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 [2023-02-15 14:14:47,716 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) [2023-02-15 14:14:47,741 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. [2023-02-15 14:14:47,741 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 [2023-02-15 14:14:47,743 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) [2023-02-15 14:14:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2023-02-15 14:14:47,743 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 5 letters. [2023-02-15 14:14:47,744 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:47,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 16 letters. Loop has 5 letters. [2023-02-15 14:14:47,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:47,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 10 letters. [2023-02-15 14:14:47,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:14:47,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 86 transitions. [2023-02-15 14:14:47,749 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:14:47,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 0 states and 0 transitions. [2023-02-15 14:14:47,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 14:14:47,750 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 14:14:47,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 14:14:47,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:14:47,750 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:14:47,750 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:14:47,750 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:14:47,750 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-15 14:14:47,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 14:14:47,750 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:14:47,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 14:14:47,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:14:47 BoogieIcfgContainer [2023-02-15 14:14:47,758 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 14:14:47,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 14:14:47,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 14:14:47,759 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 14:14:47,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:44" (3/4) ... [2023-02-15 14:14:47,761 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 14:14:47,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 14:14:47,761 INFO L158 Benchmark]: Toolchain (without parser) took 3609.98ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 89.2MB in the beginning and 81.5MB in the end (delta: 7.7MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2023-02-15 14:14:47,761 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:14:47,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 126.84ms. Allocated memory is still 123.7MB. Free memory was 89.0MB in the beginning and 79.1MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 14:14:47,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.59ms. Allocated memory is still 123.7MB. Free memory was 78.9MB in the beginning and 77.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:14:47,766 INFO L158 Benchmark]: Boogie Preprocessor took 11.94ms. Allocated memory is still 123.7MB. Free memory was 77.6MB in the beginning and 76.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:14:47,767 INFO L158 Benchmark]: RCFGBuilder took 238.57ms. Allocated memory is still 123.7MB. Free memory was 76.4MB in the beginning and 66.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 14:14:47,767 INFO L158 Benchmark]: BuchiAutomizer took 3208.24ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 66.6MB in the beginning and 81.5MB in the end (delta: -14.9MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2023-02-15 14:14:47,767 INFO L158 Benchmark]: Witness Printer took 2.33ms. Allocated memory is still 148.9MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:14:47,768 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 126.84ms. Allocated memory is still 123.7MB. Free memory was 89.0MB in the beginning and 79.1MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.59ms. Allocated memory is still 123.7MB. Free memory was 78.9MB in the beginning and 77.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.94ms. Allocated memory is still 123.7MB. Free memory was 77.6MB in the beginning and 76.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 238.57ms. Allocated memory is still 123.7MB. Free memory was 76.4MB in the beginning and 66.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3208.24ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 66.6MB in the beginning and 81.5MB in the end (delta: -14.9MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Witness Printer took 2.33ms. Allocated memory is still 148.9MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (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 3.1s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. 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, 80 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 52 mSDtfsCounter, 129 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 hnf100 smp90 dnf93 smp100 tf106 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-15 14:14:47,776 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 [2023-02-15 14:14:47,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE