./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 6c24879c 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-?-6c24879 [2022-07-13 03:10:39,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:10:39,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:10:39,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:10:39,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:10:39,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:10:39,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:10:39,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:10:39,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:10:39,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:10:39,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:10:39,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:10:39,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:10:39,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:10:39,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:10:39,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:10:39,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:10:39,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:10:39,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:10:39,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:10:39,065 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:10:39,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:10:39,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:10:39,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:10:39,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:10:39,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:10:39,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:10:39,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:10:39,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:10:39,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:10:39,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:10:39,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:10:39,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:10:39,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:10:39,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:10:39,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:10:39,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:10:39,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:10:39,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:10:39,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:10:39,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:10:39,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:10:39,083 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:10:39,106 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:10:39,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:10:39,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:10:39,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:10:39,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:10:39,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:10:39,110 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:10:39,111 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:10:39,111 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:10:39,111 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:10:39,111 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:10:39,112 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:10:39,112 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:10:39,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:10:39,112 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:10:39,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:10:39,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:10:39,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:10:39,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:10:39,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:10:39,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:10:39,114 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:10:39,114 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:10:39,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:10:39,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:10:39,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:10:39,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:10:39,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:10:39,115 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:10:39,116 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 [2022-07-13 03:10:39,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:10:39,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:10:39,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:10:39,297 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:10:39,297 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:10:39,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/GCD3.c [2022-07-13 03:10:39,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/284a8d0eb/81dddc39cab746a4a8e945df086839cf/FLAGee323772d [2022-07-13 03:10:39,640 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:10:39,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD3.c [2022-07-13 03:10:39,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/284a8d0eb/81dddc39cab746a4a8e945df086839cf/FLAGee323772d [2022-07-13 03:10:40,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/284a8d0eb/81dddc39cab746a4a8e945df086839cf [2022-07-13 03:10:40,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:10:40,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:10:40,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:10:40,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:10:40,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:10:40,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a326541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40, skipping insertion in model container [2022-07-13 03:10:40,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:10:40,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:10:40,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:10:40,213 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:10:40,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:10:40,233 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:10:40,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40 WrapperNode [2022-07-13 03:10:40,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:10:40,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:10:40,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:10:40,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:10:40,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,251 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2022-07-13 03:10:40,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:10:40,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:10:40,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:10:40,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:10:40,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:10:40,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:10:40,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:10:40,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:10:40,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (1/1) ... [2022-07-13 03:10:40,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:40,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:40,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:40,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-13 03:10:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:10:40,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:10:40,377 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:10:40,379 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:10:40,481 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:10:40,487 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:10:40,487 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-13 03:10:40,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:10:40 BoogieIcfgContainer [2022-07-13 03:10:40,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:10:40,489 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:10:40,490 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:10:40,492 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:10:40,492 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:10:40,492 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:10:40" (1/3) ... [2022-07-13 03:10:40,493 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dc5222f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:10:40, skipping insertion in model container [2022-07-13 03:10:40,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:10:40,493 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:10:40" (2/3) ... [2022-07-13 03:10:40,494 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dc5222f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:10:40, skipping insertion in model container [2022-07-13 03:10:40,494 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:10:40,494 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:10:40" (3/3) ... [2022-07-13 03:10:40,495 INFO L354 chiAutomizerObserver]: Analyzing ICFG GCD3.c [2022-07-13 03:10:40,538 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:10:40,538 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:10:40,538 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:10:40,539 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:10:40,539 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:10:40,539 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:10:40,539 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:10:40,539 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:10:40,541 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) [2022-07-13 03:10:40,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-13 03:10:40,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:40,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:40,559 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:10:40,559 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:10:40,560 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:10:40,560 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) [2022-07-13 03:10:40,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-13 03:10:40,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:40,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:40,562 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:10:40,562 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-13 03:10:40,567 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#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; 11#L13-2true [2022-07-13 03:10:40,567 INFO L754 eck$LassoCheckResult]: Loop: 11#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; 8#L17true assume 0 == main_~y~0#1;main_~y~0#1 := main_~y~0#1; 12#L21-2true assume main_~xtmp~0#1 > 0; 9#L26-2true assume !(main_~xtmp~0#1 >= main_~y~0#1); 14#L26-3true main_~y~0#1 := main_~xtmp~0#1; 5#L25-1true main_~x~0#1 := main_~tmp~0#1; 11#L13-2true [2022-07-13 03:10:40,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:40,571 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-13 03:10:40,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:40,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719707571] [2022-07-13 03:10:40,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:40,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:40,630 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:40,654 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:40,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:40,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1216130396, now seen corresponding path program 1 times [2022-07-13 03:10:40,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:40,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495711848] [2022-07-13 03:10:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:40,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:40,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:40,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:10:40,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495711848] [2022-07-13 03:10:40,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495711848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:10:40,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:10:40,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 03:10:40,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243169827] [2022-07-13 03:10:40,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:10:40,738 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:10:40,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:10:40,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:10:40,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:10:40,782 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) [2022-07-13 03:10:40,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:10:40,808 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2022-07-13 03:10:40,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:10:40,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2022-07-13 03:10:40,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-13 03:10:40,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 14 transitions. [2022-07-13 03:10:40,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-07-13 03:10:40,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-13 03:10:40,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2022-07-13 03:10:40,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:10:40,823 INFO L369 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-07-13 03:10:40,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2022-07-13 03:10:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-07-13 03:10:40,840 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) [2022-07-13 03:10:40,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-07-13 03:10:40,841 INFO L392 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-07-13 03:10:40,841 INFO L374 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-07-13 03:10:40,841 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:10:40,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2022-07-13 03:10:40,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-13 03:10:40,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:40,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:40,843 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:10:40,843 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:40,843 INFO L752 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 42#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 46#L13-2 [2022-07-13 03:10:40,844 INFO L754 eck$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 [2022-07-13 03:10:40,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:40,845 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-07-13 03:10:40,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:40,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191472839] [2022-07-13 03:10:40,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:40,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:40,856 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:40,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:40,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:40,862 INFO L85 PathProgramCache]: Analyzing trace with hash -900852200, now seen corresponding path program 1 times [2022-07-13 03:10:40,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:40,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782607726] [2022-07-13 03:10:40,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:40,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:40,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:40,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:10:40,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782607726] [2022-07-13 03:10:40,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782607726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:10:40,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:10:40,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 03:10:40,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876131237] [2022-07-13 03:10:40,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:10:40,895 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:10:40,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:10:40,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 03:10:40,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 03:10:40,898 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) [2022-07-13 03:10:40,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:10:40,914 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-07-13 03:10:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 03:10:40,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2022-07-13 03:10:40,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-07-13 03:10:40,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 15 transitions. [2022-07-13 03:10:40,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-07-13 03:10:40,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-13 03:10:40,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2022-07-13 03:10:40,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:10:40,917 INFO L369 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-13 03:10:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2022-07-13 03:10:40,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2022-07-13 03:10:40,918 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) [2022-07-13 03:10:40,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-07-13 03:10:40,918 INFO L392 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-07-13 03:10:40,919 INFO L374 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-07-13 03:10:40,919 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:10:40,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2022-07-13 03:10:40,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-13 03:10:40,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:40,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:40,922 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-13 03:10:40,923 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:40,923 INFO L752 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 [2022-07-13 03:10:40,923 INFO L754 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 [2022-07-13 03:10:40,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:40,923 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-07-13 03:10:40,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:40,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503834533] [2022-07-13 03:10:40,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:40,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:40,927 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:40,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:40,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:40,931 INFO L85 PathProgramCache]: Analyzing trace with hash -901313945, now seen corresponding path program 1 times [2022-07-13 03:10:40,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:40,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087616567] [2022-07-13 03:10:40,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:40,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:40,950 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:40,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:40,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:40,962 INFO L85 PathProgramCache]: Analyzing trace with hash 644982885, now seen corresponding path program 1 times [2022-07-13 03:10:40,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:40,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146140850] [2022-07-13 03:10:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:40,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:40,982 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:40,986 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:41,065 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:41,065 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:41,065 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:41,065 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:41,066 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:41,066 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:41,066 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:41,066 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:41,066 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2022-07-13 03:10:41,066 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:41,066 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:41,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:41,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:41,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:41,136 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:41,137 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:41,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:41,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:41,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:41,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-13 03:10:41,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:41,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:41,157 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:41,157 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: [] [2022-07-13 03:10:41,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:41,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:41,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:41,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:41,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-13 03:10:41,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:41,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:41,197 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:41,197 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: [] [2022-07-13 03:10:41,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:41,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:41,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:41,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:41,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-13 03:10:41,215 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:41,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:41,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:41,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:41,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:41,255 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:41,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-13 03:10:41,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:41,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:45,143 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:10:45,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-13 03:10:45,149 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:45,149 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:45,149 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:45,149 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:45,149 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:10:45,149 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,149 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:45,149 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:45,149 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2022-07-13 03:10:45,149 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:45,150 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:45,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,217 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:45,220 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:10:45,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:45,222 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:45,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-13 03:10:45,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:45,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:45,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:45,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:45,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:45,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:10:45,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:10:45,244 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:45,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:45,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:45,262 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:45,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-13 03:10:45,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:45,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:45,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:45,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:45,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:45,272 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:10:45,272 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:10:45,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:45,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-13 03:10:45,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:45,299 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:45,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-13 03:10:45,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:45,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:45,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:45,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:45,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:45,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:45,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:45,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:45,312 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:10:45,317 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:10:45,317 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:10:45,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:45,320 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:45,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-13 03:10:45,331 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:10:45,332 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:10:45,332 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:10:45,332 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 [] [2022-07-13 03:10:45,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:45,351 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:10:45,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:45,371 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:10:45,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:45,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 03:10:45,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:45,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:45,430 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-13 03:10:45,431 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) [2022-07-13 03:10:45,469 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. [2022-07-13 03:10:45,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:10:45,471 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) [2022-07-13 03:10:45,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-07-13 03:10:45,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 7 letters. [2022-07-13 03:10:45,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:45,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 9 letters. Loop has 7 letters. [2022-07-13 03:10:45,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:45,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 14 letters. [2022-07-13 03:10:45,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:45,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2022-07-13 03:10:45,474 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-13 03:10:45,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 25 states and 29 transitions. [2022-07-13 03:10:45,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-07-13 03:10:45,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-13 03:10:45,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2022-07-13 03:10:45,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:45,475 INFO L369 hiAutomatonCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-07-13 03:10:45,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2022-07-13 03:10:45,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2022-07-13 03:10:45,476 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) [2022-07-13 03:10:45,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-13 03:10:45,477 INFO L392 hiAutomatonCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-13 03:10:45,477 INFO L374 stractBuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-13 03:10:45,477 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:10:45,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2022-07-13 03:10:45,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-13 03:10:45,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:45,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:45,478 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:45,478 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-13 03:10:45,478 INFO L752 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 [2022-07-13 03:10:45,478 INFO L754 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 [2022-07-13 03:10:45,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:45,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725014, now seen corresponding path program 1 times [2022-07-13 03:10:45,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:45,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592304619] [2022-07-13 03:10:45,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:45,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:45,485 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:45,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:45,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:45,511 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2022-07-13 03:10:45,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:45,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622896297] [2022-07-13 03:10:45,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:45,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:45,514 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:45,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:45,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:45,516 INFO L85 PathProgramCache]: Analyzing trace with hash 297900620, now seen corresponding path program 2 times [2022-07-13 03:10:45,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:45,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365077201] [2022-07-13 03:10:45,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:45,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:45,522 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:45,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:45,577 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:45,577 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:45,577 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:45,577 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:45,577 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:45,577 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,578 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:45,578 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:45,578 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2022-07-13 03:10:45,578 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:45,578 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:45,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,659 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:45,659 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:45,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:45,661 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:45,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-13 03:10:45,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:45,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:45,695 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:45,696 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: [] [2022-07-13 03:10:45,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:45,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:45,714 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:45,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-13 03:10:45,716 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:45,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:45,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:45,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:45,747 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:45,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-13 03:10:45,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:45,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:45,871 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:10:45,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:45,874 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:45,874 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:45,874 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:45,874 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:45,874 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:10:45,874 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,874 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:45,874 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:45,874 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2022-07-13 03:10:45,874 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:45,874 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:45,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:45,969 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:45,969 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:10:45,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:45,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:45,970 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:45,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-13 03:10:45,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:45,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:45,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:45,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:45,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:45,980 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:10:45,980 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:10:45,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:46,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:46,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:46,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:46,005 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:46,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-13 03:10:46,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:46,028 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 [2022-07-13 03:10:46,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:46,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:46,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:46,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:46,033 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:10:46,033 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:10:46,044 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:10:46,051 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-07-13 03:10:46,051 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-07-13 03:10:46,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:46,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:46,052 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:46,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-13 03:10:46,054 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:10:46,081 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2022-07-13 03:10:46,081 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:10:46,081 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_~x~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2022-07-13 03:10:46,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:46,101 INFO L293 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2022-07-13 03:10:46,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:46,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:10:46,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:46,155 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:10:46,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:46,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:46,156 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 [2022-07-13 03:10:46,156 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) [2022-07-13 03:10:46,186 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. [2022-07-13 03:10:46,186 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 [2022-07-13 03:10:46,187 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) [2022-07-13 03:10:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-07-13 03:10:46,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2022-07-13 03:10:46,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:46,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 1 letters. [2022-07-13 03:10:46,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:46,187 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2022-07-13 03:10:46,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:46,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2022-07-13 03:10:46,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-13 03:10:46,189 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 30 transitions. [2022-07-13 03:10:46,189 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-07-13 03:10:46,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-13 03:10:46,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2022-07-13 03:10:46,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:46,189 INFO L369 hiAutomatonCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-07-13 03:10:46,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2022-07-13 03:10:46,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-07-13 03:10:46,190 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) [2022-07-13 03:10:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-07-13 03:10:46,191 INFO L392 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-13 03:10:46,191 INFO L374 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-13 03:10:46,191 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 03:10:46,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2022-07-13 03:10:46,191 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-13 03:10:46,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:46,191 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:46,192 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:46,192 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:46,192 INFO L752 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 [2022-07-13 03:10:46,192 INFO L754 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 [2022-07-13 03:10:46,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:46,192 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 1 times [2022-07-13 03:10:46,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:46,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350854491] [2022-07-13 03:10:46,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:46,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:46,197 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:46,200 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:46,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:46,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1601495771, now seen corresponding path program 2 times [2022-07-13 03:10:46,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:46,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449636968] [2022-07-13 03:10:46,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:46,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:46,207 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:46,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:46,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:46,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170556, now seen corresponding path program 1 times [2022-07-13 03:10:46,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:46,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450946788] [2022-07-13 03:10:46,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:46,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 03:10:46,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:10:46,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450946788] [2022-07-13 03:10:46,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450946788] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:10:46,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365434576] [2022-07-13 03:10:46,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:46,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:10:46,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:46,259 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) [2022-07-13 03:10:46,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-13 03:10:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:46,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:10:46,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 03:10:46,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:10:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 03:10:46,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365434576] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:10:46,362 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:10:46,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-07-13 03:10:46,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301564606] [2022-07-13 03:10:46,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:10:46,391 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:46,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:46,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:46,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:46,392 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:46,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:46,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:46,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:46,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2022-07-13 03:10:46,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:46,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:46,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:46,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:46,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:46,441 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:46,442 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:46,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:46,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:46,443 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:46,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-13 03:10:46,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:46,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:46,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:46,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:46,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:46,481 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:46,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-13 03:10:46,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:46,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:48,599 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:10:48,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:48,603 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:48,603 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:48,603 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:48,603 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:48,603 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:10:48,603 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:48,603 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:48,603 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:48,603 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2022-07-13 03:10:48,603 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:48,603 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:48,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:48,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:48,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:48,658 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:48,658 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:10:48,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:48,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:48,659 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:48,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-13 03:10:48,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:48,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:48,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:48,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:48,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:48,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:48,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:48,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:48,684 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:10:48,687 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:10:48,687 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:10:48,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:48,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:48,689 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:48,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-13 03:10:48,690 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:10:48,690 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:10:48,690 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:10:48,690 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 [] [2022-07-13 03:10:48,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:48,722 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:10:48,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:48,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:10:48,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:48,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 03:10:48,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:48,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:48,768 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:10:48,768 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) [2022-07-13 03:10:48,806 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. [2022-07-13 03:10:48,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:10:48,807 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) [2022-07-13 03:10:48,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2022-07-13 03:10:48,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 7 letters. [2022-07-13 03:10:48,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:48,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 7 letters. [2022-07-13 03:10:48,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:48,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 14 letters. [2022-07-13 03:10:48,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:48,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 73 transitions. [2022-07-13 03:10:48,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-13 03:10:48,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 68 transitions. [2022-07-13 03:10:48,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-07-13 03:10:48,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-07-13 03:10:48,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2022-07-13 03:10:48,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:48,810 INFO L369 hiAutomatonCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-07-13 03:10:48,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2022-07-13 03:10:48,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2022-07-13 03:10:48,813 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) [2022-07-13 03:10:48,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2022-07-13 03:10:48,813 INFO L392 hiAutomatonCegarLoop]: Abstraction has 47 states and 59 transitions. [2022-07-13 03:10:48,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:10:48,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 03:10:48,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-13 03:10:48,814 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) [2022-07-13 03:10:48,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:10:48,897 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2022-07-13 03:10:48,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 03:10:48,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2022-07-13 03:10:48,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-13 03:10:48,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 37 transitions. [2022-07-13 03:10:48,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-07-13 03:10:48,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-07-13 03:10:48,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2022-07-13 03:10:48,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:48,900 INFO L369 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-07-13 03:10:48,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2022-07-13 03:10:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2022-07-13 03:10:48,901 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) [2022-07-13 03:10:48,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-07-13 03:10:48,901 INFO L392 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-07-13 03:10:48,902 INFO L374 stractBuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-07-13 03:10:48,902 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-13 03:10:48,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2022-07-13 03:10:48,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-13 03:10:48,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:48,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:48,903 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:48,903 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:48,903 INFO L752 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 [2022-07-13 03:10:48,903 INFO L754 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 [2022-07-13 03:10:48,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:48,903 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 2 times [2022-07-13 03:10:48,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:48,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822376499] [2022-07-13 03:10:48,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:48,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:48,907 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:48,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:48,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:48,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1893238745, now seen corresponding path program 1 times [2022-07-13 03:10:48,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:48,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604884297] [2022-07-13 03:10:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:48,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:48,914 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:48,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:48,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:48,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1545352926, now seen corresponding path program 2 times [2022-07-13 03:10:48,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:48,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831967750] [2022-07-13 03:10:48,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:48,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:48,923 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:48,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:48,971 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:48,971 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:48,971 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:48,971 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:48,971 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:48,972 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:48,972 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:48,972 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:48,972 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2022-07-13 03:10:48,972 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:48,972 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:48,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:48,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:48,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:49,023 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:49,023 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:49,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:49,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:49,025 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:49,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-13 03:10:49,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:49,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:49,044 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:49,044 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: [] [2022-07-13 03:10:49,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:49,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:49,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:49,064 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:49,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-13 03:10:49,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:49,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:49,095 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 [2022-07-13 03:10:49,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:49,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:49,097 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:49,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-13 03:10:49,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:49,101 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:52,403 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:10:52,407 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 [2022-07-13 03:10:52,407 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:52,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:52,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:52,407 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:52,407 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:10:52,407 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:52,407 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:52,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:52,408 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2022-07-13 03:10:52,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:52,408 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:52,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:52,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:52,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:52,459 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:52,460 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:10:52,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:52,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:52,461 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:52,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-13 03:10:52,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:52,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:52,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:52,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:52,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:52,470 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:10:52,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:10:52,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:52,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:52,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:52,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:52,501 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:52,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-13 03:10:52,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:52,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:52,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:52,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:52,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:52,510 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:10:52,510 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:10:52,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:52,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:52,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:52,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:52,529 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) [2022-07-13 03:10:52,530 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 [2022-07-13 03:10:52,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:52,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:52,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:52,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:52,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:52,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:52,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:52,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:52,543 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:10:52,545 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:10:52,545 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:10:52,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:52,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:52,546 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) [2022-07-13 03:10:52,547 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 [2022-07-13 03:10:52,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:10:52,548 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:10:52,548 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:10:52,548 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 [] [2022-07-13 03:10:52,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:52,563 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:10:52,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:52,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:10:52,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:52,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:52,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 03:10:52,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:52,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-07-13 03:10:52,655 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 [2022-07-13 03:10:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 03:10:52,682 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-13 03:10:52,682 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) [2022-07-13 03:10:52,704 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. [2022-07-13 03:10:52,704 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 [2022-07-13 03:10:52,706 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) [2022-07-13 03:10:52,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-13 03:10:52,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 8 letters. [2022-07-13 03:10:52,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:52,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 8 letters. [2022-07-13 03:10:52,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:52,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 16 letters. [2022-07-13 03:10:52,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:52,708 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2022-07-13 03:10:52,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:10:52,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 38 states and 46 transitions. [2022-07-13 03:10:52,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-07-13 03:10:52,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-07-13 03:10:52,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2022-07-13 03:10:52,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:52,712 INFO L369 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2022-07-13 03:10:52,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2022-07-13 03:10:52,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2022-07-13 03:10:52,717 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) [2022-07-13 03:10:52,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-07-13 03:10:52,718 INFO L392 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-13 03:10:52,718 INFO L374 stractBuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-13 03:10:52,718 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-13 03:10:52,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2022-07-13 03:10:52,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-13 03:10:52,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:52,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:52,720 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:52,721 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-13 03:10:52,721 INFO L752 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 [2022-07-13 03:10:52,721 INFO L754 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 [2022-07-13 03:10:52,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:52,721 INFO L85 PathProgramCache]: Analyzing trace with hash 186101220, now seen corresponding path program 3 times [2022-07-13 03:10:52,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:52,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175595688] [2022-07-13 03:10:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:52,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:52,726 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:52,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:52,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:52,747 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 2 times [2022-07-13 03:10:52,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:52,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708073292] [2022-07-13 03:10:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:52,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:52,749 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:52,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:52,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:52,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170558, now seen corresponding path program 4 times [2022-07-13 03:10:52,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:52,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297382558] [2022-07-13 03:10:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:52,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:52,755 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:52,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:52,820 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:52,820 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:52,820 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:52,820 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:52,820 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:52,820 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:52,820 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:52,820 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:52,820 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2022-07-13 03:10:52,820 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:52,820 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:52,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:52,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:52,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:52,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:52,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:52,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:52,899 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:52,900 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:52,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:52,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:52,920 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) [2022-07-13 03:10:52,921 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 [2022-07-13 03:10:52,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:52,925 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:52,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:52,955 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: [] [2022-07-13 03:10:52,972 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 [2022-07-13 03:10:52,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:52,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:52,974 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) [2022-07-13 03:10:52,976 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 [2022-07-13 03:10:52,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:52,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:52,998 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:52,998 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: [] [2022-07-13 03:10:53,015 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 [2022-07-13 03:10:53,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,016 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) [2022-07-13 03:10:53,018 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 [2022-07-13 03:10:53,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:53,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:53,040 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:53,040 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: [] [2022-07-13 03:10:53,057 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 [2022-07-13 03:10:53,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,058 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) [2022-07-13 03:10:53,059 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 [2022-07-13 03:10:53,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:53,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:53,081 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:53,081 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: [] [2022-07-13 03:10:53,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:53,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,098 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) [2022-07-13 03:10:53,104 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 [2022-07-13 03:10:53,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:53,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:53,115 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:53,116 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: [] [2022-07-13 03:10:53,130 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 [2022-07-13 03:10:53,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,131 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) [2022-07-13 03:10:53,131 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 [2022-07-13 03:10:53,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:53,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:53,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:53,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,160 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) [2022-07-13 03:10:53,160 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 [2022-07-13 03:10:53,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:53,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:53,263 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:10:53,267 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 [2022-07-13 03:10:53,267 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:53,267 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:53,267 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:53,267 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:53,267 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:10:53,267 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,267 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:53,267 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:53,267 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2022-07-13 03:10:53,267 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:53,267 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:53,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:53,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:53,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:53,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:53,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:53,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:53,330 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:53,330 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:10:53,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,332 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) [2022-07-13 03:10:53,332 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 [2022-07-13 03:10:53,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:53,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:53,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:53,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:53,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:53,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:10:53,340 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:10:53,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:53,363 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 [2022-07-13 03:10:53,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,364 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) [2022-07-13 03:10:53,365 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 [2022-07-13 03:10:53,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:53,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:53,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:53,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:53,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:53,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:53,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:53,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:53,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:53,389 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 [2022-07-13 03:10:53,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,390 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) [2022-07-13 03:10:53,390 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 [2022-07-13 03:10:53,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:53,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:53,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:53,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:53,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:53,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:10:53,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:10:53,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:53,415 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 [2022-07-13 03:10:53,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,416 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) [2022-07-13 03:10:53,416 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 [2022-07-13 03:10:53,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:53,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:53,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:53,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:53,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:53,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:53,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:53,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:53,435 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:53,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-07-13 03:10:53,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,450 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) [2022-07-13 03:10:53,458 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 [2022-07-13 03:10:53,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:53,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:53,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:53,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:53,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:53,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:53,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:53,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:53,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:53,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:53,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,480 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) [2022-07-13 03:10:53,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:53,483 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 [2022-07-13 03:10:53,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:53,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:53,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:53,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:53,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-13 03:10:53,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-13 03:10:53,507 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:10:53,513 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-07-13 03:10:53,513 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-07-13 03:10:53,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:53,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:53,514 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) [2022-07-13 03:10:53,515 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 [2022-07-13 03:10:53,516 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:10:53,537 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-07-13 03:10:53,537 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:10:53,537 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] [2022-07-13 03:10:53,552 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 [2022-07-13 03:10:53,554 INFO L293 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-07-13 03:10:53,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:53,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 03:10:53,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:53,600 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 03:10:53,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:53,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:53,601 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 [2022-07-13 03:10:53,601 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) [2022-07-13 03:10:53,619 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. [2022-07-13 03:10:53,621 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 [2022-07-13 03:10:53,622 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) [2022-07-13 03:10:53,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-07-13 03:10:53,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2022-07-13 03:10:53,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:53,622 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:10:53,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:53,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 03:10:53,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:53,662 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 03:10:53,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:53,662 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 [2022-07-13 03:10:53,663 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) [2022-07-13 03:10:53,679 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. [2022-07-13 03:10:53,679 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 [2022-07-13 03:10:53,680 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) [2022-07-13 03:10:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-07-13 03:10:53,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2022-07-13 03:10:53,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:53,680 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:10:53,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:53,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 03:10:53,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:53,727 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 03:10:53,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:53,728 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 [2022-07-13 03:10:53,728 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) [2022-07-13 03:10:53,744 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. [2022-07-13 03:10:53,744 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 [2022-07-13 03:10:53,745 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) [2022-07-13 03:10:53,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2022-07-13 03:10:53,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 1 letters. [2022-07-13 03:10:53,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:53,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 15 letters. Loop has 1 letters. [2022-07-13 03:10:53,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:53,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 2 letters. [2022-07-13 03:10:53,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:53,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2022-07-13 03:10:53,746 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:10:53,746 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2022-07-13 03:10:53,746 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-13 03:10:53,746 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-13 03:10:53,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-13 03:10:53,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:10:53,746 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:10:53,746 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:10:53,746 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 03:10:53,746 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-13 03:10:53,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-13 03:10:53,746 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-13 03:10:53,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-13 03:10:53,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:10:53 BoogieIcfgContainer [2022-07-13 03:10:53,751 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:10:53,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:10:53,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:10:53,751 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:10:53,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:10:40" (3/4) ... [2022-07-13 03:10:53,753 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 03:10:53,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:10:53,753 INFO L158 Benchmark]: Toolchain (without parser) took 13665.73ms. Allocated memory was 144.7MB in the beginning and 178.3MB in the end (delta: 33.6MB). Free memory was 110.8MB in the beginning and 82.2MB in the end (delta: 28.6MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2022-07-13 03:10:53,753 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:10:53,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.39ms. Allocated memory is still 144.7MB. Free memory was 110.5MB in the beginning and 118.6MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:10:53,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.66ms. Allocated memory is still 144.7MB. Free memory was 118.6MB in the beginning and 117.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:10:53,754 INFO L158 Benchmark]: Boogie Preprocessor took 9.97ms. Allocated memory is still 144.7MB. Free memory was 117.2MB in the beginning and 116.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:10:53,754 INFO L158 Benchmark]: RCFGBuilder took 226.27ms. Allocated memory is still 144.7MB. Free memory was 116.1MB in the beginning and 107.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:10:53,754 INFO L158 Benchmark]: BuchiAutomizer took 13261.94ms. Allocated memory was 144.7MB in the beginning and 178.3MB in the end (delta: 33.6MB). Free memory was 107.1MB in the beginning and 82.2MB in the end (delta: 24.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-07-13 03:10:53,754 INFO L158 Benchmark]: Witness Printer took 1.90ms. Allocated memory is still 178.3MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:10:53,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.39ms. Allocated memory is still 144.7MB. Free memory was 110.5MB in the beginning and 118.6MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.66ms. Allocated memory is still 144.7MB. Free memory was 118.6MB in the beginning and 117.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.97ms. Allocated memory is still 144.7MB. Free memory was 117.2MB in the beginning and 116.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 226.27ms. Allocated memory is still 144.7MB. Free memory was 116.1MB in the beginning and 107.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 13261.94ms. Allocated memory was 144.7MB in the beginning and 178.3MB in the end (delta: 33.6MB). Free memory was 107.1MB in the beginning and 82.2MB in the end (delta: 24.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Witness Printer took 1.90ms. Allocated memory is still 178.3MB. Free memory is still 82.2MB. 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 13.2s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 12.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. 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 -1 states and ocurred in iteration -1. 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: inital24 mio100 ax150 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf91 smp96 dnf100 smp100 tf103 neg97 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 9.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-13 03:10:53,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:53,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-07-13 03:10:54,187 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