./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/GCD3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 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-restricted-15/GCD3.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 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 17:17:44,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 17:17:44,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 17:17:44,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 17:17:44,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 17:17:44,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 17:17:44,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 17:17:44,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 17:17:44,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 17:17:44,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 17:17:44,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 17:17:44,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 17:17:44,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 17:17:44,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 17:17:44,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 17:17:44,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 17:17:44,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 17:17:44,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 17:17:44,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 17:17:44,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 17:17:44,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 17:17:44,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 17:17:44,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 17:17:44,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 17:17:44,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 17:17:44,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 17:17:44,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 17:17:44,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 17:17:44,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 17:17:44,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 17:17:44,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 17:17:44,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 17:17:44,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 17:17:44,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 17:17:44,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 17:17:44,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 17:17:44,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 17:17:44,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 17:17:44,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 17:17:44,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 17:17:44,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 17:17:44,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-19 17:17:44,953 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 17:17:44,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 17:17:44,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 17:17:44,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 17:17:44,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 17:17:44,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 17:17:44,962 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 17:17:44,963 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 17:17:44,963 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 17:17:44,963 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 17:17:44,964 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 17:17:44,964 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 17:17:44,964 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 17:17:44,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 17:17:44,964 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 17:17:44,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 17:17:44,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 17:17:44,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 17:17:44,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 17:17:44,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 17:17:44,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 17:17:44,966 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 17:17:44,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 17:17:44,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 17:17:44,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 17:17:44,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 17:17:44,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 17:17:44,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 17:17:44,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 17:17:44,968 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 17:17:44,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 [2021-12-19 17:17:45,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 17:17:45,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 17:17:45,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 17:17:45,198 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 17:17:45,199 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 17:17:45,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/GCD3.c [2021-12-19 17:17:45,267 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0562e90c/2f32906de23544d78c02497316edb0c5/FLAG0f7ae8037 [2021-12-19 17:17:45,615 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 17:17:45,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD3.c [2021-12-19 17:17:45,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0562e90c/2f32906de23544d78c02497316edb0c5/FLAG0f7ae8037 [2021-12-19 17:17:45,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0562e90c/2f32906de23544d78c02497316edb0c5 [2021-12-19 17:17:45,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 17:17:45,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 17:17:45,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 17:17:45,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 17:17:45,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 17:17:45,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e162966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45, skipping insertion in model container [2021-12-19 17:17:45,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 17:17:45,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 17:17:45,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:17:45,786 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 17:17:45,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 17:17:45,810 INFO L208 MainTranslator]: Completed translation [2021-12-19 17:17:45,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45 WrapperNode [2021-12-19 17:17:45,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 17:17:45,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 17:17:45,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 17:17:45,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 17:17:45,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,833 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2021-12-19 17:17:45,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 17:17:45,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 17:17:45,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 17:17:45,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 17:17:45,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 17:17:45,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 17:17:45,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 17:17:45,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 17:17:45,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (1/1) ... [2021-12-19 17:17:45,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:45,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:45,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:45,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-19 17:17:45,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 17:17:45,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 17:17:45,942 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 17:17:45,943 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 17:17:45,995 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 17:17:46,001 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 17:17:46,001 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-19 17:17:46,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:17:46 BoogieIcfgContainer [2021-12-19 17:17:46,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 17:17:46,003 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 17:17:46,003 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 17:17:46,006 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 17:17:46,006 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:17:46,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 05:17:45" (1/3) ... [2021-12-19 17:17:46,007 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71b7cf71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:17:46, skipping insertion in model container [2021-12-19 17:17:46,007 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:17:46,007 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:17:45" (2/3) ... [2021-12-19 17:17:46,007 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71b7cf71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 05:17:46, skipping insertion in model container [2021-12-19 17:17:46,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 17:17:46,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:17:46" (3/3) ... [2021-12-19 17:17:46,009 INFO L388 chiAutomizerObserver]: Analyzing ICFG GCD3.c [2021-12-19 17:17:46,041 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 17:17:46,041 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 17:17:46,041 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 17:17:46,041 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 17:17:46,041 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 17:17:46,042 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 17:17:46,042 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 17:17:46,042 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 17:17:46,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:46,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-19 17:17:46,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:17:46,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:17:46,072 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 17:17:46,072 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-19 17:17:46,073 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 17:17:46,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:46,075 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-19 17:17:46,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:17:46,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:17:46,076 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 17:17:46,076 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-19 17:17:46,081 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 12#L13-2true [2021-12-19 17:17:46,083 INFO L793 eck$LassoCheckResult]: Loop: 12#L13-2true assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 9#L17true assume 0 == main_~y~0#1;main_~y~0#1 := main_~y~0#1; 13#L21-2true assume !(main_~xtmp~0#1 > 0); 14#L31-2true assume !true; 8#L31-3true main_~y~0#1 := main_~xtmp~0#1; 6#L25-1true main_~x~0#1 := main_~tmp~0#1; 12#L13-2true [2021-12-19 17:17:46,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:46,090 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-19 17:17:46,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:46,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902297072] [2021-12-19 17:17:46,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:46,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:46,161 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:46,181 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:46,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:46,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1216595985, now seen corresponding path program 1 times [2021-12-19 17:17:46,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:46,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411446730] [2021-12-19 17:17:46,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:46,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:17:46,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 17:17:46,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411446730] [2021-12-19 17:17:46,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411446730] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 17:17:46,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 17:17:46,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 17:17:46,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822460973] [2021-12-19 17:17:46,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 17:17:46,284 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 17:17:46,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 17:17:46,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 17:17:46,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 17:17:46,326 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:46,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 17:17:46,365 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-12-19 17:17:46,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 17:17:46,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-12-19 17:17:46,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-19 17:17:46,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 14 transitions. [2021-12-19 17:17:46,388 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-19 17:17:46,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-19 17:17:46,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2021-12-19 17:17:46,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 17:17:46,389 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-12-19 17:17:46,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2021-12-19 17:17:46,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-12-19 17:17:46,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:46,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-12-19 17:17:46,429 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-12-19 17:17:46,429 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-12-19 17:17:46,429 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 17:17:46,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-12-19 17:17:46,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-12-19 17:17:46,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:17:46,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:17:46,431 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 17:17:46,431 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:17:46,432 INFO L791 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 42#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 46#L13-2 [2021-12-19 17:17:46,432 INFO L793 eck$LassoCheckResult]: Loop: 46#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 39#L17 assume !(0 == main_~y~0#1); 40#L21 assume !(main_~y~0#1 < 0); 45#L21-2 assume !(main_~xtmp~0#1 > 0); 48#L31-2 assume !(main_~xtmp~0#1 < 0); 49#L31-3 main_~y~0#1 := main_~xtmp~0#1; 47#L25-1 main_~x~0#1 := main_~tmp~0#1; 46#L13-2 [2021-12-19 17:17:46,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:46,433 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-19 17:17:46,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:46,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110795641] [2021-12-19 17:17:46,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:46,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:46,443 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:46,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:46,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:46,448 INFO L85 PathProgramCache]: Analyzing trace with hash -900852200, now seen corresponding path program 1 times [2021-12-19 17:17:46,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:46,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151033269] [2021-12-19 17:17:46,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:46,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:46,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:17:46,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 17:17:46,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151033269] [2021-12-19 17:17:46,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151033269] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 17:17:46,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 17:17:46,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 17:17:46,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621343041] [2021-12-19 17:17:46,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 17:17:46,492 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-19 17:17:46,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 17:17:46,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 17:17:46,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 17:17:46,494 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:46,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 17:17:46,516 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-12-19 17:17:46,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 17:17:46,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-12-19 17:17:46,519 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-12-19 17:17:46,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 15 transitions. [2021-12-19 17:17:46,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-19 17:17:46,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-12-19 17:17:46,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2021-12-19 17:17:46,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 17:17:46,521 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-12-19 17:17:46,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2021-12-19 17:17:46,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2021-12-19 17:17:46,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-12-19 17:17:46,523 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-19 17:17:46,523 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-19 17:17:46,524 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 17:17:46,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2021-12-19 17:17:46,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-19 17:17:46,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:17:46,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:17:46,526 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 17:17:46,526 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:17:46,526 INFO L791 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 72#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 76#L13-2 [2021-12-19 17:17:46,527 INFO L793 eck$LassoCheckResult]: Loop: 76#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 69#L17 assume !(0 == main_~y~0#1); 70#L21 assume !(main_~y~0#1 < 0); 75#L21-2 assume main_~xtmp~0#1 > 0; 73#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 74#L26-3 main_~y~0#1 := main_~xtmp~0#1; 77#L25-1 main_~x~0#1 := main_~tmp~0#1; 76#L13-2 [2021-12-19 17:17:46,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:46,528 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2021-12-19 17:17:46,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:46,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138943717] [2021-12-19 17:17:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:46,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:46,539 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:46,542 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:46,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:46,543 INFO L85 PathProgramCache]: Analyzing trace with hash -901313945, now seen corresponding path program 1 times [2021-12-19 17:17:46,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:46,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617325555] [2021-12-19 17:17:46,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:46,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:46,557 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:46,570 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:46,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:46,572 INFO L85 PathProgramCache]: Analyzing trace with hash 644982885, now seen corresponding path program 1 times [2021-12-19 17:17:46,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:46,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394985745] [2021-12-19 17:17:46,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:46,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:46,593 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:46,598 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:46,672 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:17:46,673 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:17:46,673 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:17:46,673 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:17:46,673 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:17:46,673 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:46,673 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:17:46,674 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:17:46,674 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2021-12-19 17:17:46,675 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:17:46,675 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:17:46,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:46,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:46,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:46,762 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:17:46,762 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:17:46,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:46,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:46,766 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:46,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-19 17:17:46,768 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:46,768 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:46,790 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:17:46,791 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:17:46,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:46,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:46,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:46,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:46,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-19 17:17:46,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:46,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:46,827 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:17:46,828 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:17:46,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-19 17:17:46,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:46,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:46,844 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:46,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-19 17:17:46,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:46,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:46,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:46,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:46,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:46,897 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:46,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-19 17:17:46,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:17:46,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:50,235 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:17:50,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:50,244 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:17:50,244 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:17:50,244 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:17:50,244 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:17:50,245 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:17:50,245 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:50,245 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:17:50,245 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:17:50,245 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2021-12-19 17:17:50,245 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:17:50,245 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:17:50,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:50,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:50,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:50,350 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:17:50,353 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:17:50,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:50,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:50,355 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:50,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-19 17:17:50,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:50,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:50,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:50,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:50,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:50,367 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:17:50,367 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:17:50,378 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:17:50,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-19 17:17:50,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:50,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:50,395 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:50,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-19 17:17:50,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:50,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:50,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:50,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:50,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:50,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:17:50,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:17:50,412 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:17:50,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:50,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:50,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:50,428 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:50,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-19 17:17:50,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:50,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:50,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:17:50,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:50,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:50,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:50,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:17:50,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:17:50,455 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:17:50,458 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 17:17:50,458 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-19 17:17:50,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:50,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:50,460 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:50,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-19 17:17:50,461 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:17:50,461 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:17:50,462 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:17:50,462 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-12-19 17:17:50,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:50,480 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:17:50,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:50,505 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:17:50,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:50,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 17:17:50,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:50,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:17:50,663 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-12-19 17:17:50,670 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:50,722 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 33 transitions. Complement of second has 9 states. [2021-12-19 17:17:50,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-19 17:17:50,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:50,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-12-19 17:17:50,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 7 letters. [2021-12-19 17:17:50,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:50,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 9 letters. Loop has 7 letters. [2021-12-19 17:17:50,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:50,727 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 14 letters. [2021-12-19 17:17:50,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:50,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2021-12-19 17:17:50,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-19 17:17:50,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 25 states and 29 transitions. [2021-12-19 17:17:50,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-19 17:17:50,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-19 17:17:50,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2021-12-19 17:17:50,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:17:50,730 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-12-19 17:17:50,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2021-12-19 17:17:50,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2021-12-19 17:17:50,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:50,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-12-19 17:17:50,732 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-19 17:17:50,732 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-19 17:17:50,732 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-19 17:17:50,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2021-12-19 17:17:50,733 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-19 17:17:50,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:17:50,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:17:50,733 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:17:50,733 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-19 17:17:50,734 INFO L791 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 168#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 180#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 163#L17 assume !(0 == main_~y~0#1); 164#L21 assume !(main_~y~0#1 < 0); 173#L21-2 assume main_~xtmp~0#1 > 0; 169#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 170#L26-2 [2021-12-19 17:17:50,734 INFO L793 eck$LassoCheckResult]: Loop: 170#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 170#L26-2 [2021-12-19 17:17:50,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:50,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725014, now seen corresponding path program 1 times [2021-12-19 17:17:50,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:50,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880744052] [2021-12-19 17:17:50,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:50,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:50,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:50,740 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:50,744 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:50,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:50,744 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2021-12-19 17:17:50,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:50,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127724084] [2021-12-19 17:17:50,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:50,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:50,747 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:50,749 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:50,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:50,749 INFO L85 PathProgramCache]: Analyzing trace with hash 297900620, now seen corresponding path program 2 times [2021-12-19 17:17:50,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:50,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438531693] [2021-12-19 17:17:50,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:50,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:50,754 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:50,759 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:50,804 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:17:50,805 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:17:50,805 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:17:50,805 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:17:50,805 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:17:50,805 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:50,805 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:17:50,805 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:17:50,806 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2021-12-19 17:17:50,806 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:17:50,806 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:17:50,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:50,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:50,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:50,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:50,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:50,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:50,900 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:17:50,900 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:17:50,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:50,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:50,901 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:50,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:50,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:50,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-19 17:17:50,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:17:50,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:17:50,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:50,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:50,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:50,961 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:50,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-19 17:17:50,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:50,964 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:51,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:51,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:51,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:51,016 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:51,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-19 17:17:51,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:17:51,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:51,205 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:17:51,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:51,209 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:17:51,209 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:17:51,209 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:17:51,209 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:17:51,209 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:17:51,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:51,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:17:51,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:17:51,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2021-12-19 17:17:51,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:17:51,210 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:17:51,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:51,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:51,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:51,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:51,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:51,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:51,286 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:17:51,287 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:17:51,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:51,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:51,288 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:51,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-19 17:17:51,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:51,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:51,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:51,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:51,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:51,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:17:51,302 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:17:51,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:17:51,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:51,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:51,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:51,339 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:51,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:51,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-19 17:17:51,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:51,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:51,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:51,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:51,358 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:17:51,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:17:51,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:17:51,383 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-19 17:17:51,383 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-19 17:17:51,384 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:51,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:51,385 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:51,419 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:17:51,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-19 17:17:51,438 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2021-12-19 17:17:51,438 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:17:51,438 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 + 1*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~y~0#1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~x~0#1 - 1 >= 0] [2021-12-19 17:17:51,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:51,466 INFO L297 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2021-12-19 17:17:51,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:51,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 17:17:51,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:51,603 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 17:17:51,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:51,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:17:51,604 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-19 17:17:51,604 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:51,632 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 32 transitions. Complement of second has 6 states. [2021-12-19 17:17:51,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-19 17:17:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-19 17:17:51,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2021-12-19 17:17:51,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:51,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 1 letters. [2021-12-19 17:17:51,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:51,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-19 17:17:51,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:51,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2021-12-19 17:17:51,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-19 17:17:51,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 30 transitions. [2021-12-19 17:17:51,636 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-19 17:17:51,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-19 17:17:51,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2021-12-19 17:17:51,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:17:51,636 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2021-12-19 17:17:51,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2021-12-19 17:17:51,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2021-12-19 17:17:51,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:51,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-12-19 17:17:51,639 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-12-19 17:17:51,639 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-12-19 17:17:51,639 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-19 17:17:51,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-12-19 17:17:51,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-12-19 17:17:51,640 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:17:51,640 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:17:51,640 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:17:51,640 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:17:51,640 INFO L791 eck$LassoCheckResult]: Stem: 274#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 275#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 287#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 289#L17 assume !(0 == main_~y~0#1); 293#L21 assume !(main_~y~0#1 < 0); 292#L21-2 assume main_~xtmp~0#1 > 0; 291#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 290#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 277#L26-3 [2021-12-19 17:17:51,641 INFO L793 eck$LassoCheckResult]: Loop: 277#L26-3 main_~y~0#1 := main_~xtmp~0#1; 283#L25-1 main_~x~0#1 := main_~tmp~0#1; 281#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 270#L17 assume !(0 == main_~y~0#1); 271#L21 assume !(main_~y~0#1 < 0); 279#L21-2 assume main_~xtmp~0#1 > 0; 276#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 277#L26-3 [2021-12-19 17:17:51,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:51,641 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 1 times [2021-12-19 17:17:51,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:51,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430266251] [2021-12-19 17:17:51,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:51,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:51,659 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:51,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:51,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:51,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1601495771, now seen corresponding path program 2 times [2021-12-19 17:17:51,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:51,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751917814] [2021-12-19 17:17:51,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:51,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:51,667 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:51,670 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:51,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:51,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170556, now seen corresponding path program 1 times [2021-12-19 17:17:51,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:51,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632038385] [2021-12-19 17:17:51,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:51,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:51,730 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 17:17:51,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 17:17:51,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632038385] [2021-12-19 17:17:51,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632038385] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 17:17:51,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138803588] [2021-12-19 17:17:51,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:51,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 17:17:51,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:51,743 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 17:17:51,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-19 17:17:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:51,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 17:17:51,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:51,801 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 17:17:51,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 17:17:51,854 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 17:17:51,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138803588] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 17:17:51,855 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 17:17:51,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2021-12-19 17:17:51,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579132903] [2021-12-19 17:17:51,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 17:17:51,911 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:17:51,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:17:51,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:17:51,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:17:51,912 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:17:51,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:51,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:17:51,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:17:51,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2021-12-19 17:17:51,912 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:17:51,912 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:17:51,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:51,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:51,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:51,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:51,985 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:17:51,985 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:17:51,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:51,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:51,988 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:51,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:51,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:52,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-19 17:17:52,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:52,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:52,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:52,047 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:52,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-19 17:17:52,052 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:17:52,052 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:53,202 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:17:53,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-19 17:17:53,207 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:17:53,207 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:17:53,207 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:17:53,207 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:17:53,207 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:17:53,207 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:53,207 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:17:53,207 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:17:53,207 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2021-12-19 17:17:53,207 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:17:53,207 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:17:53,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:53,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:53,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:53,272 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:17:53,273 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:17:53,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:53,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:53,276 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:53,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-19 17:17:53,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:53,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:53,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:17:53,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:53,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:53,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:53,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:17:53,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:17:53,311 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:17:53,316 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 17:17:53,316 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-19 17:17:53,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:53,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:53,317 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:53,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-19 17:17:53,320 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:17:53,321 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:17:53,321 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:17:53,321 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2021-12-19 17:17:53,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:53,345 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:17:53,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:53,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:17:53,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:53,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 17:17:53,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:53,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:17:53,404 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-19 17:17:53,405 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:53,432 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 59 states and 73 transitions. Complement of second has 8 states. [2021-12-19 17:17:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-12-19 17:17:53,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:53,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-12-19 17:17:53,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 7 letters. [2021-12-19 17:17:53,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:53,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 7 letters. [2021-12-19 17:17:53,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:53,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 14 letters. [2021-12-19 17:17:53,435 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:53,435 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 73 transitions. [2021-12-19 17:17:53,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-19 17:17:53,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 68 transitions. [2021-12-19 17:17:53,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-12-19 17:17:53,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-12-19 17:17:53,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2021-12-19 17:17:53,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:17:53,438 INFO L681 BuchiCegarLoop]: Abstraction has 54 states and 68 transitions. [2021-12-19 17:17:53,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2021-12-19 17:17:53,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2021-12-19 17:17:53,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 46 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:53,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2021-12-19 17:17:53,442 INFO L704 BuchiCegarLoop]: Abstraction has 47 states and 59 transitions. [2021-12-19 17:17:53,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 17:17:53,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-19 17:17:53,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-19 17:17:53,443 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 17:17:53,532 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2021-12-19 17:17:53,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-19 17:17:53,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2021-12-19 17:17:53,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-19 17:17:53,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 37 transitions. [2021-12-19 17:17:53,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-12-19 17:17:53,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-12-19 17:17:53,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2021-12-19 17:17:53,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:17:53,544 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-12-19 17:17:53,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2021-12-19 17:17:53,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2021-12-19 17:17:53,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-12-19 17:17:53,550 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-19 17:17:53,550 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-19 17:17:53,550 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-19 17:17:53,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2021-12-19 17:17:53,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-19 17:17:53,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:17:53,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:17:53,551 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:17:53,552 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 17:17:53,552 INFO L791 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 631#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 642#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 648#L17 assume !(0 == main_~y~0#1); 647#L21 assume !(main_~y~0#1 < 0); 646#L21-2 assume main_~xtmp~0#1 > 0; 645#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 644#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 635#L26-3 [2021-12-19 17:17:53,552 INFO L793 eck$LassoCheckResult]: Loop: 635#L26-3 main_~y~0#1 := main_~xtmp~0#1; 643#L25-1 main_~x~0#1 := main_~tmp~0#1; 638#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 628#L17 assume !(0 == main_~y~0#1); 629#L21 assume !(main_~y~0#1 < 0); 641#L21-2 assume main_~xtmp~0#1 > 0; 632#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 633#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 635#L26-3 [2021-12-19 17:17:53,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:53,552 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 2 times [2021-12-19 17:17:53,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:53,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012030054] [2021-12-19 17:17:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:53,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:53,562 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:53,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:53,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:53,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1893238745, now seen corresponding path program 1 times [2021-12-19 17:17:53,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:53,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840120505] [2021-12-19 17:17:53,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:53,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:53,571 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:53,575 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:53,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:53,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1545352926, now seen corresponding path program 2 times [2021-12-19 17:17:53,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:53,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813493012] [2021-12-19 17:17:53,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:53,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:53,582 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:53,589 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:53,629 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:17:53,629 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:17:53,629 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:17:53,629 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:17:53,629 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:17:53,629 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:53,629 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:17:53,629 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:17:53,629 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2021-12-19 17:17:53,629 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:17:53,629 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:17:53,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:53,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:53,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:53,679 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:17:53,679 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:17:53,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:53,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:53,681 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:53,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-19 17:17:53,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:53,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:53,699 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:17:53,699 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:17:53,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:53,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:53,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:53,719 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:53,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-19 17:17:53,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:53,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:53,765 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 [2021-12-19 17:17:53,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:53,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:53,768 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:53,775 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:17:53,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:53,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-19 17:17:55,147 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:17:55,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:55,152 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:17:55,152 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:17:55,152 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:17:55,152 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:17:55,152 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:17:55,152 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:17:55,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:17:55,153 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2021-12-19 17:17:55,153 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:17:55,153 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:17:55,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,218 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:17:55,218 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:17:55,218 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,219 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-19 17:17:55,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:55,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:55,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:55,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:55,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:55,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:17:55,235 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:17:55,250 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:17:55,265 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 [2021-12-19 17:17:55,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,266 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-19 17:17:55,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:55,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:55,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:55,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:55,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:55,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:17:55,275 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:17:55,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:17:55,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-19 17:17:55,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,295 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-19 17:17:55,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:55,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:55,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:17:55,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:55,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:55,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:55,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:17:55,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:17:55,307 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:17:55,309 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 17:17:55,309 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-19 17:17:55,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,310 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-19 17:17:55,311 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:17:55,311 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 17:17:55,311 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:17:55,311 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2021-12-19 17:17:55,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-19 17:17:55,326 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 17:17:55,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:55,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 17:17:55,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:55,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:55,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 17:17:55,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-19 17:17:55,422 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-19 17:17:55,422 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:55,458 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 55 transitions. Complement of second has 6 states. [2021-12-19 17:17:55,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-19 17:17:55,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:55,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-19 17:17:55,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 8 letters. [2021-12-19 17:17:55,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:55,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 8 letters. [2021-12-19 17:17:55,462 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:55,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 16 letters. [2021-12-19 17:17:55,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:55,465 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2021-12-19 17:17:55,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-19 17:17:55,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 38 states and 46 transitions. [2021-12-19 17:17:55,468 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-12-19 17:17:55,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-12-19 17:17:55,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2021-12-19 17:17:55,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 17:17:55,468 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 46 transitions. [2021-12-19 17:17:55,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2021-12-19 17:17:55,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2021-12-19 17:17:55,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:55,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2021-12-19 17:17:55,470 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-12-19 17:17:55,470 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-12-19 17:17:55,470 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-19 17:17:55,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2021-12-19 17:17:55,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-12-19 17:17:55,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 17:17:55,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 17:17:55,471 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-12-19 17:17:55,471 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-12-19 17:17:55,472 INFO L791 eck$LassoCheckResult]: Stem: 775#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 776#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 786#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 799#L17 assume !(0 == main_~y~0#1); 798#L21 assume !(main_~y~0#1 < 0); 796#L21-2 assume main_~xtmp~0#1 > 0; 794#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 791#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 789#L26-3 main_~y~0#1 := main_~xtmp~0#1; 784#L25-1 main_~x~0#1 := main_~tmp~0#1; 782#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 771#L17 assume !(0 == main_~y~0#1); 772#L21 assume !(main_~y~0#1 < 0); 780#L21-2 assume main_~xtmp~0#1 > 0; 777#L26-2 [2021-12-19 17:17:55,472 INFO L793 eck$LassoCheckResult]: Loop: 777#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 777#L26-2 [2021-12-19 17:17:55,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:55,472 INFO L85 PathProgramCache]: Analyzing trace with hash 186101220, now seen corresponding path program 3 times [2021-12-19 17:17:55,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:55,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084276324] [2021-12-19 17:17:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:55,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:55,479 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:55,484 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:55,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:55,484 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 2 times [2021-12-19 17:17:55,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:55,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174614498] [2021-12-19 17:17:55,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:55,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:55,487 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:55,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:55,495 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:55,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:55,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170558, now seen corresponding path program 4 times [2021-12-19 17:17:55,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 17:17:55,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306140585] [2021-12-19 17:17:55,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 17:17:55,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 17:17:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:55,501 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 17:17:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 17:17:55,510 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 17:17:55,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:55,584 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:17:55,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:17:55,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:17:55,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:17:55,585 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 17:17:55,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:17:55,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:17:55,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2021-12-19 17:17:55,586 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:17:55,586 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:17:55,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,637 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:17:55,637 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 17:17:55,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,639 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-19 17:17:55,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:55,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:55,647 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:17:55,648 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:17:55,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:55,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,665 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-19 17:17:55,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:55,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:55,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:17:55,704 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:17:55,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:55,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,719 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-19 17:17:55,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:55,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:55,728 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:17:55,728 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:17:55,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:55,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,744 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-19 17:17:55,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:55,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:55,754 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:17:55,754 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:17:55,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-12-19 17:17:55,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,769 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-19 17:17:55,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:55,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:55,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 17:17:55,784 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 17:17:55,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-19 17:17:55,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,799 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-19 17:17:55,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 17:17:55,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:55,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-19 17:17:55,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:55,830 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:55,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-19 17:17:55,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 17:17:55,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 17:17:55,947 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 17:17:55,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-19 17:17:55,951 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 17:17:55,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 17:17:55,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 17:17:55,951 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 17:17:55,951 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 17:17:55,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:55,951 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 17:17:55,951 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 17:17:55,951 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2021-12-19 17:17:55,951 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 17:17:55,951 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 17:17:55,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:55,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 17:17:56,004 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 17:17:56,004 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 17:17:56,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:56,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:56,005 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:56,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-19 17:17:56,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:56,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:56,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:56,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:56,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:56,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:17:56,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:17:56,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:17:56,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:56,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:56,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:56,032 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:56,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-19 17:17:56,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:56,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:56,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:17:56,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:56,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:56,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:56,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:17:56,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:17:56,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:17:56,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-19 17:17:56,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:56,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:56,057 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:56,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-19 17:17:56,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:56,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:56,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:56,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:56,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:56,066 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:17:56,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:17:56,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:17:56,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-19 17:17:56,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:56,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:56,083 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:56,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-19 17:17:56,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:56,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:56,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:17:56,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:56,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:56,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:56,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:17:56,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:17:56,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:17:56,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:56,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:56,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:56,107 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:56,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-19 17:17:56,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:56,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:56,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 17:17:56,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:56,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:56,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:56,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 17:17:56,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 17:17:56,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 17:17:56,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-12-19 17:17:56,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:56,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:56,139 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:56,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-19 17:17:56,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-19 17:17:56,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 17:17:56,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 17:17:56,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 17:17:56,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 17:17:56,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-19 17:17:56,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-19 17:17:56,156 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 17:17:56,162 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-19 17:17:56,162 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-12-19 17:17:56,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 17:17:56,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 17:17:56,167 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-19 17:17:56,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-19 17:17:56,170 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 17:17:56,194 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-19 17:17:56,194 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 17:17:56,194 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2021-12-19 17:17:56,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:56,212 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-19 17:17:56,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:56,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 17:17:56,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:56,286 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 17:17:56,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:17:56,287 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-19 17:17:56,287 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:56,314 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2021-12-19 17:17:56,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-19 17:17:56,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:56,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-12-19 17:17:56,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2021-12-19 17:17:56,317 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:56,317 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-19 17:17:56,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:56,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 17:17:56,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:56,388 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 17:17:56,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:56,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:17:56,388 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-19 17:17:56,388 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:56,408 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2021-12-19 17:17:56,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-19 17:17:56,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-12-19 17:17:56,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2021-12-19 17:17:56,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:56,410 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-19 17:17:56,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 17:17:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:56,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-19 17:17:56,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 17:17:56,479 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-19 17:17:56,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 17:17:56,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 17:17:56,480 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-12-19 17:17:56,480 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:56,502 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 40 transitions. Complement of second has 5 states. [2021-12-19 17:17:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-19 17:17:56,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 17:17:56,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-12-19 17:17:56,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 1 letters. [2021-12-19 17:17:56,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:56,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 15 letters. Loop has 1 letters. [2021-12-19 17:17:56,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:56,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 2 letters. [2021-12-19 17:17:56,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 17:17:56,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2021-12-19 17:17:56,505 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 17:17:56,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2021-12-19 17:17:56,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 17:17:56,506 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 17:17:56,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 17:17:56,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 17:17:56,506 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:17:56,506 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:17:56,506 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 17:17:56,506 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-19 17:17:56,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-19 17:17:56,507 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 17:17:56,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-19 17:17:56,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 05:17:56 BoogieIcfgContainer [2021-12-19 17:17:56,513 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 17:17:56,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 17:17:56,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 17:17:56,513 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 17:17:56,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:17:46" (3/4) ... [2021-12-19 17:17:56,515 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-19 17:17:56,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 17:17:56,516 INFO L158 Benchmark]: Toolchain (without parser) took 10873.04ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 63.2MB in the beginning and 38.1MB in the end (delta: 25.1MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2021-12-19 17:17:56,516 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:17:56,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.70ms. Allocated memory is still 94.4MB. Free memory was 63.0MB in the beginning and 71.3MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 17:17:56,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.17ms. Allocated memory is still 94.4MB. Free memory was 71.3MB in the beginning and 69.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:17:56,517 INFO L158 Benchmark]: Boogie Preprocessor took 12.64ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 69.2MB in the end (delta: 743.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 17:17:56,517 INFO L158 Benchmark]: RCFGBuilder took 155.29ms. Allocated memory is still 94.4MB. Free memory was 69.2MB in the beginning and 60.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 17:17:56,517 INFO L158 Benchmark]: BuchiAutomizer took 10509.57ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 60.5MB in the beginning and 38.1MB in the end (delta: 22.4MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2021-12-19 17:17:56,517 INFO L158 Benchmark]: Witness Printer took 2.20ms. Allocated memory is still 123.7MB. Free memory is still 38.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 17:17:56,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 94.4MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.70ms. Allocated memory is still 94.4MB. Free memory was 63.0MB in the beginning and 71.3MB in the end (delta: -8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.17ms. Allocated memory is still 94.4MB. Free memory was 71.3MB in the beginning and 69.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.64ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 69.2MB in the end (delta: 743.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 155.29ms. Allocated memory is still 94.4MB. Free memory was 69.2MB in the beginning and 60.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10509.57ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 60.5MB in the beginning and 38.1MB in the end (delta: 22.4MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. * Witness Printer took 2.20ms. Allocated memory is still 123.7MB. Free memory is still 38.1MB. 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 8 terminating modules (3 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function 2 * xtmp + x + -2 * y and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 4 locations. One nondeterministic module has affine ranking function 2 * xtmp + -2 * y + 1 and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.4s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 9.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 31 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 6. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 202 IncrementalHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 66 mSDtfsCounter, 202 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax155 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq174 hnf90 smp100 dnf100 smp100 tf103 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-19 17:17:56,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-19 17:17:56,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-12-19 17:17:56,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE