./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/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-?-3598765 [2022-07-22 01:30:21,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:30:21,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:30:21,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:30:21,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:30:21,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:30:21,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:30:21,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:30:21,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:30:21,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:30:21,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:30:21,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:30:21,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:30:21,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:30:21,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:30:21,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:30:21,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:30:21,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:30:21,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:30:21,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:30:21,158 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:30:21,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:30:21,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:30:21,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:30:21,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:30:21,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:30:21,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:30:21,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:30:21,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:30:21,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:30:21,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:30:21,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:30:21,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:30:21,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:30:21,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:30:21,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:30:21,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:30:21,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:30:21,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:30:21,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:30:21,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:30:21,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:30:21,179 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:30:21,211 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:30:21,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:30:21,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:30:21,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:30:21,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:30:21,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:30:21,215 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:30:21,215 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:30:21,215 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:30:21,216 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:30:21,216 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:30:21,216 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:30:21,217 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:30:21,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:30:21,217 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:30:21,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:30:21,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:30:21,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:30:21,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:30:21,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:30:21,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:30:21,218 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:30:21,219 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:30:21,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:30:21,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:30:21,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:30:21,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:30:21,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:30:21,222 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:30:21,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 [2022-07-22 01:30:21,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:30:21,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:30:21,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:30:21,557 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:30:21,557 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:30:21,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/GCD3.c [2022-07-22 01:30:21,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/641958c1e/26ba0a8cfbec44f99e3e5d43d3933f83/FLAG54468fc6e [2022-07-22 01:30:22,075 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:30:22,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD3.c [2022-07-22 01:30:22,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/641958c1e/26ba0a8cfbec44f99e3e5d43d3933f83/FLAG54468fc6e [2022-07-22 01:30:22,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/641958c1e/26ba0a8cfbec44f99e3e5d43d3933f83 [2022-07-22 01:30:22,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:30:22,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:30:22,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:30:22,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:30:22,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:30:22,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc6ef96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22, skipping insertion in model container [2022-07-22 01:30:22,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:30:22,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:30:22,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:30:22,287 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:30:22,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:30:22,334 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:30:22,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22 WrapperNode [2022-07-22 01:30:22,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:30:22,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:30:22,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:30:22,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:30:22,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,378 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2022-07-22 01:30:22,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:30:22,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:30:22,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:30:22,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:30:22,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:30:22,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:30:22,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:30:22,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:30:22,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (1/1) ... [2022-07-22 01:30:22,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:22,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:22,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:22,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 01:30:22,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:30:22,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:30:22,540 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:30:22,542 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:30:22,647 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:30:22,653 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:30:22,653 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-22 01:30:22,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:30:22 BoogieIcfgContainer [2022-07-22 01:30:22,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:30:22,656 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:30:22,656 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:30:22,658 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:30:22,659 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:30:22,659 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:30:22" (1/3) ... [2022-07-22 01:30:22,660 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@286fed69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:30:22, skipping insertion in model container [2022-07-22 01:30:22,660 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:30:22,660 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:30:22" (2/3) ... [2022-07-22 01:30:22,661 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@286fed69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:30:22, skipping insertion in model container [2022-07-22 01:30:22,661 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:30:22,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:30:22" (3/3) ... [2022-07-22 01:30:22,662 INFO L354 chiAutomizerObserver]: Analyzing ICFG GCD3.c [2022-07-22 01:30:22,713 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:30:22,714 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:30:22,714 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:30:22,714 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:30:22,714 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:30:22,714 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:30:22,714 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:30:22,715 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:30:22,718 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) [2022-07-22 01:30:22,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 01:30:22,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:22,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:22,737 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:30:22,737 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:30:22,737 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:30:22,738 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) [2022-07-22 01:30:22,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 01:30:22,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:22,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:22,741 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:30:22,741 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:30:22,752 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 [2022-07-22 01:30:22,753 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 [2022-07-22 01:30:22,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:22,761 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 01:30:22,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:22,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221864347] [2022-07-22 01:30:22,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:22,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:22,836 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:22,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:22,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:22,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1216130396, now seen corresponding path program 1 times [2022-07-22 01:30:22,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:22,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449762451] [2022-07-22 01:30:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:22,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:22,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:22,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:30:22,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449762451] [2022-07-22 01:30:22,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449762451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:30:22,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:30:22,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:30:22,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277978890] [2022-07-22 01:30:22,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:30:22,962 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:30:22,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:30:23,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:30:23,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:30:23,019 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) [2022-07-22 01:30:23,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:30:23,053 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2022-07-22 01:30:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:30:23,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2022-07-22 01:30:23,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 01:30:23,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 14 transitions. [2022-07-22 01:30:23,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-07-22 01:30:23,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-22 01:30:23,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2022-07-22 01:30:23,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:30:23,071 INFO L369 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-07-22 01:30:23,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2022-07-22 01:30:23,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-07-22 01:30:23,093 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) [2022-07-22 01:30:23,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2022-07-22 01:30:23,095 INFO L392 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-07-22 01:30:23,095 INFO L374 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2022-07-22 01:30:23,095 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:30:23,095 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2022-07-22 01:30:23,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-22 01:30:23,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:23,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:23,097 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:30:23,097 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:30:23,098 INFO L752 eck$LassoCheckResult]: Stem: 41#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 42#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 46#L13-2 [2022-07-22 01:30:23,098 INFO L754 eck$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 [2022-07-22 01:30:23,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:23,100 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-07-22 01:30:23,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:23,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925784561] [2022-07-22 01:30:23,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:23,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:23,118 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:23,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:23,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:23,125 INFO L85 PathProgramCache]: Analyzing trace with hash -900852200, now seen corresponding path program 1 times [2022-07-22 01:30:23,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:23,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925027987] [2022-07-22 01:30:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:23,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:23,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:23,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:30:23,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925027987] [2022-07-22 01:30:23,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925027987] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:30:23,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:30:23,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 01:30:23,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358009372] [2022-07-22 01:30:23,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:30:23,168 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-22 01:30:23,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:30:23,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 01:30:23,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 01:30:23,172 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) [2022-07-22 01:30:23,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:30:23,197 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-07-22 01:30:23,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 01:30:23,198 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2022-07-22 01:30:23,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2022-07-22 01:30:23,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 15 transitions. [2022-07-22 01:30:23,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-07-22 01:30:23,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-22 01:30:23,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2022-07-22 01:30:23,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:30:23,201 INFO L369 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-07-22 01:30:23,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2022-07-22 01:30:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2022-07-22 01:30:23,203 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) [2022-07-22 01:30:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-07-22 01:30:23,204 INFO L392 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-07-22 01:30:23,204 INFO L374 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-07-22 01:30:23,204 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:30:23,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2022-07-22 01:30:23,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-22 01:30:23,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:23,210 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:23,210 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:30:23,210 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:30:23,211 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 [2022-07-22 01:30:23,211 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 [2022-07-22 01:30:23,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:23,211 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2022-07-22 01:30:23,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:23,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349328462] [2022-07-22 01:30:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:23,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:23,215 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:23,217 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:23,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:23,218 INFO L85 PathProgramCache]: Analyzing trace with hash -901313945, now seen corresponding path program 1 times [2022-07-22 01:30:23,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:23,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454161061] [2022-07-22 01:30:23,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:23,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:23,227 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:23,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:23,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:23,245 INFO L85 PathProgramCache]: Analyzing trace with hash 644982885, now seen corresponding path program 1 times [2022-07-22 01:30:23,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:23,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883206591] [2022-07-22 01:30:23,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:23,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:23,266 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:23,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:23,358 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:23,358 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:23,359 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:23,359 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:23,359 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:30:23,359 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:23,359 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:23,359 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:23,360 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2022-07-22 01:30:23,360 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:23,360 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:23,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:23,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:23,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:23,485 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:23,486 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:30:23,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:23,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:23,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:23,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:23,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:23,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-22 01:30:23,517 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:23,518 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: [] [2022-07-22 01:30:23,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:23,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:23,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:23,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:23,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:23,552 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:23,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-22 01:30:23,571 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:23,571 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: [] [2022-07-22 01:30:23,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:23,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:23,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:23,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:23,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:23,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:23,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-22 01:30:23,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:23,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:23,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:23,653 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:23,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-22 01:30:23,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:30:23,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:27,857 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:30:27,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:27,862 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:27,862 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:27,862 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:27,862 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:27,862 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:30:27,863 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:27,863 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:27,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:27,868 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2022-07-22 01:30:27,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:27,868 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:27,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:27,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:27,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:27,969 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:27,973 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:30:27,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:27,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:27,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:28,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-22 01:30:28,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:28,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:28,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:28,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:28,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:28,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:28,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:28,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:28,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:28,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:28,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:28,081 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:28,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-22 01:30:28,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:28,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:28,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:28,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:28,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:28,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:28,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:28,107 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:28,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:28,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:28,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:28,125 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:28,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-22 01:30:28,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:28,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:28,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:28,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:28,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:28,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:28,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:28,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:28,145 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:30:28,149 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:30:28,149 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:30:28,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:28,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:28,151 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:28,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-22 01:30:28,153 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:30:28,153 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:30:28,153 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:30:28,153 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 [] [2022-07-22 01:30:28,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-22 01:30:28,173 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:30:28,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:28,196 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:28,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:28,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:30:28,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:28,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:28,275 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-22 01:30:28,276 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) [2022-07-22 01:30:28,326 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. [2022-07-22 01:30:28,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-22 01:30:28,328 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) [2022-07-22 01:30:28,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-07-22 01:30:28,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 7 letters. [2022-07-22 01:30:28,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:28,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 9 letters. Loop has 7 letters. [2022-07-22 01:30:28,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:28,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 14 letters. [2022-07-22 01:30:28,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:28,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2022-07-22 01:30:28,333 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-22 01:30:28,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 25 states and 29 transitions. [2022-07-22 01:30:28,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-07-22 01:30:28,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-22 01:30:28,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2022-07-22 01:30:28,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:28,334 INFO L369 hiAutomatonCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-07-22 01:30:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2022-07-22 01:30:28,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2022-07-22 01:30:28,336 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) [2022-07-22 01:30:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-07-22 01:30:28,337 INFO L392 hiAutomatonCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-22 01:30:28,337 INFO L374 stractBuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-07-22 01:30:28,337 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:30:28,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2022-07-22 01:30:28,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-22 01:30:28,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:28,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:28,339 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:30:28,339 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 01:30:28,339 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 [2022-07-22 01:30:28,339 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 [2022-07-22 01:30:28,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:28,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725014, now seen corresponding path program 1 times [2022-07-22 01:30:28,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:28,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231204684] [2022-07-22 01:30:28,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:28,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:28,347 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:28,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:28,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:28,353 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2022-07-22 01:30:28,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:28,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391382314] [2022-07-22 01:30:28,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:28,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:28,357 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:28,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:28,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:28,360 INFO L85 PathProgramCache]: Analyzing trace with hash 297900620, now seen corresponding path program 2 times [2022-07-22 01:30:28,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:28,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864915408] [2022-07-22 01:30:28,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:28,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:28,366 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:28,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:28,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-22 01:30:28,457 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:28,458 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:28,458 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:28,458 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:28,458 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:30:28,458 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:28,458 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:28,458 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:28,458 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2022-07-22 01:30:28,458 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:28,458 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:28,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,537 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:28,538 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:30:28,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:28,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:28,539 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:28,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:28,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:28,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-22 01:30:28,576 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:28,576 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: [] [2022-07-22 01:30:28,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:28,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:28,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:28,603 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:28,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:28,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:28,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-22 01:30:28,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:28,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:28,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:28,666 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:28,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-22 01:30:28,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:30:28,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:28,805 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:30:28,809 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-07-22 01:30:28,809 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:28,809 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:28,809 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:28,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:28,810 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:30:28,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:28,810 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:28,810 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:28,810 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2022-07-22 01:30:28,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:28,810 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:28,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:28,907 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:28,908 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:30:28,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:28,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:28,909 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:28,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:28,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:28,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:28,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:28,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:28,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:28,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:28,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-22 01:30:28,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:28,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:28,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:28,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:28,976 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:28,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-22 01:30:28,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:28,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:28,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:28,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:28,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:28,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:28,991 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:29,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:30:29,017 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2022-07-22 01:30:29,017 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-07-22 01:30:29,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:29,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:29,020 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:29,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-22 01:30:29,023 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:30:29,056 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2022-07-22 01:30:29,056 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:30:29,056 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 + 1*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~y~0#1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~x~0#1 - 1 >= 0] [2022-07-22 01:30:29,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:29,081 INFO L293 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2022-07-22 01:30:29,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:29,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:30:29,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:29,153 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 01:30:29,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:29,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:29,154 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 [2022-07-22 01:30:29,154 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) [2022-07-22 01:30:29,203 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. [2022-07-22 01:30:29,204 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 [2022-07-22 01:30:29,215 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) [2022-07-22 01:30:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-07-22 01:30:29,215 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2022-07-22 01:30:29,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:29,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 1 letters. [2022-07-22 01:30:29,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:29,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2022-07-22 01:30:29,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:29,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2022-07-22 01:30:29,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-22 01:30:29,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:29,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 30 transitions. [2022-07-22 01:30:29,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-07-22 01:30:29,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-22 01:30:29,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2022-07-22 01:30:29,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:29,221 INFO L369 hiAutomatonCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-07-22 01:30:29,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2022-07-22 01:30:29,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-07-22 01:30:29,223 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) [2022-07-22 01:30:29,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-07-22 01:30:29,223 INFO L392 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-22 01:30:29,223 INFO L374 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-07-22 01:30:29,224 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 01:30:29,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2022-07-22 01:30:29,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-07-22 01:30:29,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:29,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:29,225 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:30:29,225 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:30:29,225 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 [2022-07-22 01:30:29,225 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 [2022-07-22 01:30:29,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:29,225 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 1 times [2022-07-22 01:30:29,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:29,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833577508] [2022-07-22 01:30:29,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:29,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:29,231 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:29,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:29,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1601495771, now seen corresponding path program 2 times [2022-07-22 01:30:29,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:29,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003096191] [2022-07-22 01:30:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:29,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:29,241 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:29,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:29,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:29,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:29,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170556, now seen corresponding path program 1 times [2022-07-22 01:30:29,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:29,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807787781] [2022-07-22 01:30:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:29,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:30:29,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:30:29,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807787781] [2022-07-22 01:30:29,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807787781] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:30:29,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011564335] [2022-07-22 01:30:29,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:29,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:30:29,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:29,299 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) [2022-07-22 01:30:29,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-22 01:30:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:29,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 01:30:29,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:30:29,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:30:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:30:29,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011564335] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:30:29,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:30:29,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-07-22 01:30:29,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500597881] [2022-07-22 01:30:29,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:30:29,470 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:29,470 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:29,470 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:29,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:29,471 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:30:29,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:29,471 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:29,471 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:29,471 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2022-07-22 01:30:29,471 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:29,471 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:29,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:29,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:29,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:29,529 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:29,529 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:30:29,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:29,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:29,532 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:29,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:29,542 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:29,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-22 01:30:29,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:29,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:29,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:29,593 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:29,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-22 01:30:29,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:30:29,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:31,848 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:30:31,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:31,854 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:31,854 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:31,854 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:31,854 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:31,854 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:30:31,854 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:31,854 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:31,854 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:31,854 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2022-07-22 01:30:31,854 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:31,854 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:31,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:31,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:31,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:31,922 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:31,922 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:30:31,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:31,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:31,923 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:31,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-22 01:30:31,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:31,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:31,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:31,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:31,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:31,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:31,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:31,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:31,950 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:30:31,953 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:30:31,953 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:30:31,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:31,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:31,955 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:31,958 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:30:31,958 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:30:31,958 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:30:31,958 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 [] [2022-07-22 01:30:31,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-22 01:30:31,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:31,976 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:30:31,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:32,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:32,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:32,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:30:32,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:32,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:32,064 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:30:32,064 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) [2022-07-22 01:30:32,114 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. [2022-07-22 01:30:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-22 01:30:32,116 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) [2022-07-22 01:30:32,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2022-07-22 01:30:32,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 7 letters. [2022-07-22 01:30:32,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:32,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 7 letters. [2022-07-22 01:30:32,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:32,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 14 letters. [2022-07-22 01:30:32,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:32,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 73 transitions. [2022-07-22 01:30:32,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 01:30:32,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 68 transitions. [2022-07-22 01:30:32,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-07-22 01:30:32,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-07-22 01:30:32,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2022-07-22 01:30:32,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:32,120 INFO L369 hiAutomatonCegarLoop]: Abstraction has 54 states and 68 transitions. [2022-07-22 01:30:32,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2022-07-22 01:30:32,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2022-07-22 01:30:32,125 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) [2022-07-22 01:30:32,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2022-07-22 01:30:32,125 INFO L392 hiAutomatonCegarLoop]: Abstraction has 47 states and 59 transitions. [2022-07-22 01:30:32,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:30:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 01:30:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-22 01:30:32,126 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) [2022-07-22 01:30:32,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:30:32,230 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2022-07-22 01:30:32,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 01:30:32,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2022-07-22 01:30:32,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 01:30:32,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 37 transitions. [2022-07-22 01:30:32,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-07-22 01:30:32,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-07-22 01:30:32,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2022-07-22 01:30:32,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:32,232 INFO L369 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-07-22 01:30:32,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2022-07-22 01:30:32,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2022-07-22 01:30:32,237 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) [2022-07-22 01:30:32,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-07-22 01:30:32,237 INFO L392 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-07-22 01:30:32,238 INFO L374 stractBuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-07-22 01:30:32,238 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 01:30:32,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2022-07-22 01:30:32,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-22 01:30:32,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:32,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:32,239 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:30:32,239 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 01:30:32,239 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 [2022-07-22 01:30:32,239 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 [2022-07-22 01:30:32,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:32,239 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 2 times [2022-07-22 01:30:32,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:32,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650845633] [2022-07-22 01:30:32,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:32,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:32,244 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:32,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:32,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:32,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1893238745, now seen corresponding path program 1 times [2022-07-22 01:30:32,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:32,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001330003] [2022-07-22 01:30:32,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:32,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:32,254 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:32,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:32,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:32,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1545352926, now seen corresponding path program 2 times [2022-07-22 01:30:32,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:32,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203500792] [2022-07-22 01:30:32,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:32,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:32,266 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:32,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:32,319 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:32,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:32,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:32,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:32,319 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:30:32,319 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:32,319 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:32,319 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:32,319 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2022-07-22 01:30:32,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:32,319 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:32,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:32,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:32,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:32,377 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:32,378 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:30:32,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:32,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:32,379 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:32,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-22 01:30:32,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:32,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:32,403 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:32,404 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: [] [2022-07-22 01:30:32,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:32,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:32,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:32,421 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:32,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-22 01:30:32,424 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:32,424 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:32,481 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 [2022-07-22 01:30:32,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:32,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:32,483 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:32,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:30:32,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:32,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-22 01:30:36,130 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:30:36,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-22 01:30:36,136 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:36,136 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:36,136 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:36,136 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:36,136 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:30:36,136 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,136 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:36,136 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:36,136 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2022-07-22 01:30:36,137 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:36,137 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:36,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:36,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:36,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:36,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:36,214 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:36,214 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:30:36,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,216 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:36,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-22 01:30:36,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:36,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:36,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:36,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:36,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:36,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:36,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:36,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:36,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-07-22 01:30:36,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,252 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:30:36,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-22 01:30:36,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:36,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:36,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:36,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:36,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:36,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:36,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:36,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:36,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:36,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,289 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) [2022-07-22 01:30:36,290 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 [2022-07-22 01:30:36,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:36,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:36,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:36,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:36,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:36,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:36,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:36,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:36,313 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:30:36,330 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:30:36,330 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:30:36,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,336 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) [2022-07-22 01:30:36,344 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:30:36,344 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:30:36,344 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:30:36,344 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 [] [2022-07-22 01:30:36,347 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 [2022-07-22 01:30:36,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-07-22 01:30:36,363 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:30:36,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:36,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:30:36,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:36,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:30:36,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:30:36,442 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:30:36,442 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) [2022-07-22 01:30:36,470 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. [2022-07-22 01:30:36,470 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 [2022-07-22 01:30:36,472 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) [2022-07-22 01:30:36,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-22 01:30:36,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 8 letters. [2022-07-22 01:30:36,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:36,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 8 letters. [2022-07-22 01:30:36,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:36,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 16 letters. [2022-07-22 01:30:36,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:36,477 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2022-07-22 01:30:36,479 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-22 01:30:36,481 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 38 states and 46 transitions. [2022-07-22 01:30:36,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-07-22 01:30:36,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-07-22 01:30:36,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2022-07-22 01:30:36,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:30:36,482 INFO L369 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2022-07-22 01:30:36,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2022-07-22 01:30:36,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2022-07-22 01:30:36,490 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) [2022-07-22 01:30:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-07-22 01:30:36,490 INFO L392 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-22 01:30:36,490 INFO L374 stractBuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-07-22 01:30:36,490 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-22 01:30:36,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2022-07-22 01:30:36,494 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-22 01:30:36,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:30:36,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:30:36,495 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-22 01:30:36,496 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 01:30:36,496 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 [2022-07-22 01:30:36,496 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 [2022-07-22 01:30:36,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:36,497 INFO L85 PathProgramCache]: Analyzing trace with hash 186101220, now seen corresponding path program 3 times [2022-07-22 01:30:36,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:36,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181503287] [2022-07-22 01:30:36,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:36,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:36,512 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:36,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:36,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:36,527 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 2 times [2022-07-22 01:30:36,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:36,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165617373] [2022-07-22 01:30:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:36,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:36,531 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:36,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:36,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:36,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170558, now seen corresponding path program 4 times [2022-07-22 01:30:36,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:30:36,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241812856] [2022-07-22 01:30:36,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:30:36,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:30:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:36,550 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:30:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:30:36,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:30:36,641 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:36,642 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:36,642 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:36,642 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:36,642 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:30:36,642 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,642 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:36,642 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:36,642 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2022-07-22 01:30:36,642 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:36,642 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:36,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:36,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:36,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:36,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:36,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:36,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:36,722 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:36,722 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:30:36,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,723 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) [2022-07-22 01:30:36,724 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 [2022-07-22 01:30:36,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:36,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:36,752 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 [2022-07-22 01:30:36,752 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:36,752 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: [] [2022-07-22 01:30:36,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-07-22 01:30:36,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,769 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) [2022-07-22 01:30:36,769 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 [2022-07-22 01:30:36,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:36,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:36,785 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:36,786 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: [] [2022-07-22 01:30:36,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-07-22 01:30:36,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,804 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) [2022-07-22 01:30:36,804 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 [2022-07-22 01:30:36,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:36,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:36,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:36,812 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: [] [2022-07-22 01:30:36,829 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 [2022-07-22 01:30:36,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,830 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) [2022-07-22 01:30:36,838 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 [2022-07-22 01:30:36,838 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:36,838 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:36,859 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:36,859 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: [] [2022-07-22 01:30:36,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-07-22 01:30:36,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,877 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) [2022-07-22 01:30:36,878 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 [2022-07-22 01:30:36,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:36,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:36,889 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:30:36,889 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: [] [2022-07-22 01:30:36,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:36,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,905 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) [2022-07-22 01:30:36,906 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 [2022-07-22 01:30:36,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:30:36,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:36,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-07-22 01:30:36,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:36,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:36,935 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) [2022-07-22 01:30:36,935 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 [2022-07-22 01:30:36,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:30:36,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:30:37,041 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:30:37,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:37,045 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:30:37,045 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:30:37,045 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:30:37,045 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:30:37,045 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:30:37,045 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:37,045 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:30:37,045 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:30:37,045 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2022-07-22 01:30:37,045 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:30:37,045 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:30:37,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:37,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:37,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:37,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:37,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:37,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:30:37,137 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:30:37,138 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:30:37,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:37,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:37,144 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) [2022-07-22 01:30:37,145 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 [2022-07-22 01:30:37,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:37,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:37,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:37,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:37,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:37,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:37,154 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:37,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:37,174 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 [2022-07-22 01:30:37,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:37,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:37,176 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) [2022-07-22 01:30:37,176 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 [2022-07-22 01:30:37,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:37,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:37,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:37,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:37,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:37,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:37,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:37,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:37,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:37,199 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 [2022-07-22 01:30:37,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:37,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:37,200 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) [2022-07-22 01:30:37,200 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 [2022-07-22 01:30:37,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:37,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:37,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:37,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:37,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:37,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:37,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:37,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:37,226 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 [2022-07-22 01:30:37,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:37,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:37,227 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) [2022-07-22 01:30:37,228 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 [2022-07-22 01:30:37,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:37,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:37,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:37,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:37,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:37,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:37,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:37,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:37,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:37,251 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 [2022-07-22 01:30:37,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:37,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:37,252 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) [2022-07-22 01:30:37,253 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 [2022-07-22 01:30:37,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:37,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:37,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:30:37,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:37,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:37,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:37,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:30:37,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:30:37,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:30:37,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-07-22 01:30:37,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:37,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:37,283 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) [2022-07-22 01:30:37,284 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 [2022-07-22 01:30:37,284 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:30:37,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:30:37,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:30:37,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:30:37,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:30:37,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:30:37,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:30:37,297 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:30:37,302 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-07-22 01:30:37,302 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-07-22 01:30:37,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:30:37,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:30:37,304 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) [2022-07-22 01:30:37,313 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 [2022-07-22 01:30:37,314 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:30:37,320 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-07-22 01:30:37,320 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:30:37,320 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] [2022-07-22 01:30:37,335 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 [2022-07-22 01:30:37,339 INFO L293 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-07-22 01:30:37,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:37,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:30:37,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:37,404 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:30:37,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:37,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:37,405 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 [2022-07-22 01:30:37,406 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) [2022-07-22 01:30:37,432 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. [2022-07-22 01:30:37,433 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 [2022-07-22 01:30:37,435 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) [2022-07-22 01:30:37,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-07-22 01:30:37,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2022-07-22 01:30:37,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:37,436 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:30:37,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:37,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:30:37,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:37,488 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:30:37,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:37,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:37,489 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 [2022-07-22 01:30:37,489 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) [2022-07-22 01:30:37,521 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. [2022-07-22 01:30:37,521 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 [2022-07-22 01:30:37,522 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) [2022-07-22 01:30:37,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-07-22 01:30:37,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2022-07-22 01:30:37,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:37,522 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:30:37,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:30:37,545 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 [2022-07-22 01:30:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:37,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 01:30:37,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:30:37,575 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 01:30:37,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:30:37,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:30:37,576 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 [2022-07-22 01:30:37,576 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) [2022-07-22 01:30:37,596 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. [2022-07-22 01:30:37,597 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 [2022-07-22 01:30:37,597 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) [2022-07-22 01:30:37,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2022-07-22 01:30:37,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 1 letters. [2022-07-22 01:30:37,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:37,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 15 letters. Loop has 1 letters. [2022-07-22 01:30:37,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:37,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 2 letters. [2022-07-22 01:30:37,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:30:37,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2022-07-22 01:30:37,599 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:30:37,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2022-07-22 01:30:37,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 01:30:37,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 01:30:37,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 01:30:37,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:30:37,599 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:30:37,599 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:30:37,599 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:30:37,599 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-22 01:30:37,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 01:30:37,599 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:30:37,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 01:30:37,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:30:37 BoogieIcfgContainer [2022-07-22 01:30:37,605 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:30:37,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:30:37,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:30:37,606 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:30:37,606 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:30:22" (3/4) ... [2022-07-22 01:30:37,608 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 01:30:37,608 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:30:37,609 INFO L158 Benchmark]: Toolchain (without parser) took 15501.41ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 43.1MB in the beginning and 41.4MB in the end (delta: 1.7MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-07-22 01:30:37,609 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 46.1MB. Free memory was 27.8MB in the beginning and 27.8MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:30:37,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.11ms. Allocated memory is still 58.7MB. Free memory was 42.8MB in the beginning and 43.2MB in the end (delta: -371.3kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 01:30:37,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.05ms. Allocated memory is still 58.7MB. Free memory was 42.9MB in the beginning and 41.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:30:37,610 INFO L158 Benchmark]: Boogie Preprocessor took 25.60ms. Allocated memory is still 58.7MB. Free memory was 41.7MB in the beginning and 40.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:30:37,610 INFO L158 Benchmark]: RCFGBuilder took 248.90ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 32.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 01:30:37,610 INFO L158 Benchmark]: BuchiAutomizer took 14949.30ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 42.0MB in the end (delta: -9.8MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2022-07-22 01:30:37,610 INFO L158 Benchmark]: Witness Printer took 2.65ms. Allocated memory is still 71.3MB. Free memory was 42.0MB in the beginning and 41.4MB in the end (delta: 567.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:30:37,612 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 46.1MB. Free memory was 27.8MB in the beginning and 27.8MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.11ms. Allocated memory is still 58.7MB. Free memory was 42.8MB in the beginning and 43.2MB in the end (delta: -371.3kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.05ms. Allocated memory is still 58.7MB. Free memory was 42.9MB in the beginning and 41.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.60ms. Allocated memory is still 58.7MB. Free memory was 41.7MB in the beginning and 40.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 248.90ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 32.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 14949.30ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 42.0MB in the end (delta: -9.8MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Witness Printer took 2.65ms. Allocated memory is still 71.3MB. Free memory was 42.0MB in the beginning and 41.4MB in the end (delta: 567.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 14.9s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 13.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. 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, 0.2s 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: 87ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 10.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 01:30:37,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-22 01:30:37,847 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE