./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.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 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:33:51,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:33:51,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:33:51,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:33:51,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:33:51,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:33:51,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:33:51,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:33:51,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:33:51,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:33:51,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:33:51,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:33:51,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:33:51,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:33:51,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:33:51,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:33:51,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:33:51,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:33:51,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:33:51,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:33:51,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:33:51,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:33:51,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:33:51,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:33:51,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:33:51,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:33:51,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:33:51,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:33:51,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:33:51,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:33:51,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:33:51,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:33:51,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:33:51,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:33:51,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:33:51,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:33:51,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:33:51,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:33:51,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:33:51,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:33:51,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:33:51,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:33:51,338 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:33:51,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:33:51,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:33:51,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:33:51,340 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:33:51,341 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:33:51,341 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:33:51,341 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:33:51,341 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:33:51,341 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:33:51,341 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:33:51,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:33:51,342 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:33:51,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:33:51,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:33:51,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:33:51,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:33:51,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:33:51,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:33:51,344 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:33:51,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:33:51,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:33:51,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:33:51,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:33:51,345 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:33:51,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:33:51,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:33:51,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:33:51,346 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:33:51,347 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:33:51,347 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2020-10-20 06:33:51,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:33:51,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:33:51,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:33:51,584 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:33:51,584 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:33:51,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-10-20 06:33:51,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f8f0a20/6d77d666695745d5a81ba54af76b8e5c/FLAGc44aa79d9 [2020-10-20 06:33:52,214 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:33:52,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-10-20 06:33:52,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f8f0a20/6d77d666695745d5a81ba54af76b8e5c/FLAGc44aa79d9 [2020-10-20 06:33:52,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51f8f0a20/6d77d666695745d5a81ba54af76b8e5c [2020-10-20 06:33:52,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:33:52,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:33:52,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:33:52,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:33:52,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:33:52,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99f5a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52, skipping insertion in model container [2020-10-20 06:33:52,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:33:52,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:33:52,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:33:52,821 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:33:52,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:33:52,853 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:33:52,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52 WrapperNode [2020-10-20 06:33:52,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:33:52,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:33:52,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:33:52,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:33:52,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:33:52,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:33:52,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:33:52,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:33:52,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (1/1) ... [2020-10-20 06:33:52,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:33:52,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:33:52,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:33:52,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:33:52,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:33:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:33:53,161 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:33:53,161 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 06:33:53,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:53 BoogieIcfgContainer [2020-10-20 06:33:53,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:33:53,163 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:33:53,164 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:33:53,167 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:33:53,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:53,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:33:52" (1/3) ... [2020-10-20 06:33:53,169 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@276685ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:33:53, skipping insertion in model container [2020-10-20 06:33:53,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:53,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:52" (2/3) ... [2020-10-20 06:33:53,170 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@276685ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:33:53, skipping insertion in model container [2020-10-20 06:33:53,170 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:53,170 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:53" (3/3) ... [2020-10-20 06:33:53,172 INFO L373 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops.c [2020-10-20 06:33:53,220 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:33:53,220 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:33:53,220 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:33:53,220 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:33:53,220 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:33:53,221 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:33:53,221 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:33:53,221 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:33:53,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-10-20 06:33:53,260 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:33:53,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:53,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:53,266 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 06:33:53,267 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:33:53,267 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:33:53,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-10-20 06:33:53,268 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-20 06:33:53,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:53,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:53,269 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 06:33:53,269 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:33:53,278 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 8#L18true assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 5#L19-2true [2020-10-20 06:33:53,278 INFO L796 eck$LassoCheckResult]: Loop: 5#L19-2true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 3#L21true assume !(main_~y~0 < main_~x~0); 12#L21-1true main_~x~0 := main_~x~0 - 1; 5#L19-2true [2020-10-20 06:33:53,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:53,286 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-10-20 06:33:53,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:53,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645716904] [2020-10-20 06:33:53,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:53,377 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:53,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:53,401 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:53,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:53,403 INFO L82 PathProgramCache]: Analyzing trace with hash 43246, now seen corresponding path program 1 times [2020-10-20 06:33:53,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:53,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119364960] [2020-10-20 06:33:53,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:53,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:53,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:53,431 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:53,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:53,433 INFO L82 PathProgramCache]: Analyzing trace with hash 29685291, now seen corresponding path program 1 times [2020-10-20 06:33:53,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:53,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557679251] [2020-10-20 06:33:53,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:53,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:53,448 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:53,450 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:53,518 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:53,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:53,520 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:53,520 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:53,520 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:33:53,520 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:53,520 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:53,521 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:53,521 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration1_Loop [2020-10-20 06:33:53,521 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:53,522 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:53,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:53,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:53,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:53,745 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:53,746 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:53,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:53,752 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:53,762 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:53,763 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:53,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:53,789 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:53,794 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:53,795 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:53,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:53,817 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:53,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:33:53,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:53,903 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:33:53,905 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:53,905 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:53,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:53,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:53,906 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:33:53,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:53,906 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:53,906 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:53,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration1_Loop [2020-10-20 06:33:53,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:53,907 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:53,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:53,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:53,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:54,004 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:54,010 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:54,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:54,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:54,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:54,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:54,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:54,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:33:54,038 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:54,086 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:54,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:54,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:54,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:54,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:54,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:33:54,098 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:54,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:33:54,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:54,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:33:54,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:54,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:54,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:54,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:33:54,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,155 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:33:54,161 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:33:54,161 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:54,175 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:33:54,175 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:33:54,176 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:33:54,177 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,216 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:33:54,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:54,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:33:54,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:54,275 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:33:54,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:33:54,310 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 06:33:54,311 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2020-10-20 06:33:54,405 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 30 states and 44 transitions. Complement of second has 7 states. [2020-10-20 06:33:54,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 06:33:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:33:54,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2020-10-20 06:33:54,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 3 letters. [2020-10-20 06:33:54,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:54,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 3 letters. [2020-10-20 06:33:54,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:54,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 6 letters. [2020-10-20 06:33:54,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:54,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2020-10-20 06:33:54,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:33:54,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 9 states and 13 transitions. [2020-10-20 06:33:54,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-10-20 06:33:54,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-10-20 06:33:54,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-10-20 06:33:54,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:33:54,424 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-10-20 06:33:54,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-10-20 06:33:54,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-20 06:33:54,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-20 06:33:54,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2020-10-20 06:33:54,452 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-10-20 06:33:54,452 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-10-20 06:33:54,453 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:33:54,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2020-10-20 06:33:54,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:33:54,454 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:54,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:54,454 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-20 06:33:54,454 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:33:54,455 INFO L794 eck$LassoCheckResult]: Stem: 87#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 88#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 89#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 82#L21 assume main_~y~0 < main_~x~0; 83#L22-2 [2020-10-20 06:33:54,455 INFO L796 eck$LassoCheckResult]: Loop: 83#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 83#L22-2 [2020-10-20 06:33:54,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:54,455 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2020-10-20 06:33:54,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:54,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356789576] [2020-10-20 06:33:54,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:54,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:54,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:54,467 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:54,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:54,468 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-10-20 06:33:54,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:54,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437160943] [2020-10-20 06:33:54,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:54,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:54,476 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:54,477 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:54,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:54,477 INFO L82 PathProgramCache]: Analyzing trace with hash 29684850, now seen corresponding path program 1 times [2020-10-20 06:33:54,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:54,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152298992] [2020-10-20 06:33:54,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:54,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:54,489 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:54,490 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:54,561 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:54,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:54,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:54,562 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:54,562 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:33:54,562 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,562 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:54,562 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:54,562 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration2_Lasso [2020-10-20 06:33:54,562 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:54,562 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:54,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:54,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:54,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:54,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:54,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:54,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:33:54,685 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:54,685 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:54,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:54,701 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:54,702 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: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:54,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:54,733 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:54,733 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:54,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:54,759 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:54,759 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:54,795 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:54,795 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,805 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:54,805 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:54,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:54,846 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:54,846 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:33:54,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:54,893 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:54,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:33:54,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:34:07,038 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2020-10-20 06:34:07,047 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:34:07,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:34:07,047 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:34:07,047 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:34:07,047 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:34:07,047 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:07,048 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:34:07,048 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:34:07,048 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration2_Lasso [2020-10-20 06:34:07,048 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:34:07,048 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:34:07,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:07,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:07,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:07,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:07,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:07,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:07,165 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:34:07,165 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:07,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:07,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:07,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:07,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:07,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:07,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:34:07,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:34:07,192 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:07,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:07,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:07,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:07,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:07,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:07,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:34:07,247 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:07,260 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:34:07,276 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-20 06:34:07,276 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:07,283 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:07,287 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-10-20 06:34:07,287 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:34:07,287 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483645 Supporting invariants [-1*ULTIMATE.start_main_~x~0 + 1073741823 >= 0, 1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2020-10-20 06:34:07,323 INFO L297 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2020-10-20 06:34:07,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:07,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:34:07,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:07,385 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:34:07,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:07,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:07,386 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2020-10-20 06:34:07,386 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-20 06:34:07,496 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2020-10-20 06:34:07,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:34:07,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 06:34:07,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2020-10-20 06:34:07,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-20 06:34:07,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:07,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-20 06:34:07,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:07,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-20 06:34:07,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:07,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2020-10-20 06:34:07,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:34:07,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 15 states and 21 transitions. [2020-10-20 06:34:07,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-10-20 06:34:07,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-10-20 06:34:07,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2020-10-20 06:34:07,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:34:07,502 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2020-10-20 06:34:07,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2020-10-20 06:34:07,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2020-10-20 06:34:07,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-20 06:34:07,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-10-20 06:34:07,504 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-20 06:34:07,504 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-20 06:34:07,504 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:34:07,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2020-10-20 06:34:07,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:34:07,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:34:07,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:34:07,506 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2020-10-20 06:34:07,506 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:34:07,506 INFO L794 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 170#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 171#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 172#L21 assume main_~y~0 < main_~x~0; 167#L22-2 assume !(main_~y~0 < main_~x~0); 168#L21-1 main_~x~0 := main_~x~0 - 1; 174#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 164#L21 assume main_~y~0 < main_~x~0; 165#L22-2 [2020-10-20 06:34:07,506 INFO L796 eck$LassoCheckResult]: Loop: 165#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 165#L22-2 [2020-10-20 06:34:07,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:07,507 INFO L82 PathProgramCache]: Analyzing trace with hash -421925037, now seen corresponding path program 1 times [2020-10-20 06:34:07,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:07,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336619430] [2020-10-20 06:34:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:07,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:07,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336619430] [2020-10-20 06:34:07,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:34:07,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:34:07,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232851983] [2020-10-20 06:34:07,551 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:34:07,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:07,551 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-10-20 06:34:07,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:07,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615578723] [2020-10-20 06:34:07,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:07,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:07,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:07,559 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:07,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:34:07,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:34:07,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:34:07,578 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-10-20 06:34:07,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:34:07,597 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2020-10-20 06:34:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:34:07,598 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2020-10-20 06:34:07,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:34:07,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 18 transitions. [2020-10-20 06:34:07,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-20 06:34:07,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-10-20 06:34:07,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2020-10-20 06:34:07,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:34:07,600 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-10-20 06:34:07,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2020-10-20 06:34:07,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-10-20 06:34:07,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 06:34:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-10-20 06:34:07,602 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-20 06:34:07,602 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-20 06:34:07,603 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 06:34:07,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-10-20 06:34:07,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:34:07,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:34:07,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:34:07,604 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2020-10-20 06:34:07,604 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:34:07,604 INFO L794 eck$LassoCheckResult]: Stem: 201#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 202#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 203#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 198#L21 assume main_~y~0 < main_~x~0; 199#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 205#L22-2 assume !(main_~y~0 < main_~x~0); 208#L21-1 main_~x~0 := main_~x~0 - 1; 206#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 196#L21 assume main_~y~0 < main_~x~0; 197#L22-2 [2020-10-20 06:34:07,605 INFO L796 eck$LassoCheckResult]: Loop: 197#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 197#L22-2 [2020-10-20 06:34:07,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:07,605 INFO L82 PathProgramCache]: Analyzing trace with hash -193177154, now seen corresponding path program 1 times [2020-10-20 06:34:07,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:07,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143180736] [2020-10-20 06:34:07,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:07,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:07,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143180736] [2020-10-20 06:34:07,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893067509] [2020-10-20 06:34:07,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:34:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:07,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:34:07,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:07,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:07,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:34:07,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-10-20 06:34:07,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891729848] [2020-10-20 06:34:07,752 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 06:34:07,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:07,753 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 3 times [2020-10-20 06:34:07,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:07,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082231703] [2020-10-20 06:34:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:07,757 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:07,759 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:07,760 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:07,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:34:07,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:34:07,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:34:07,771 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand 8 states. [2020-10-20 06:34:07,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:34:07,874 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2020-10-20 06:34:07,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:34:07,875 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2020-10-20 06:34:07,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:34:07,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 14 states and 16 transitions. [2020-10-20 06:34:07,877 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-10-20 06:34:07,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-20 06:34:07,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2020-10-20 06:34:07,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:34:07,878 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2020-10-20 06:34:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2020-10-20 06:34:07,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 11. [2020-10-20 06:34:07,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-20 06:34:07,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-20 06:34:07,879 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-20 06:34:07,880 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-20 06:34:07,880 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 06:34:07,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2020-10-20 06:34:07,880 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:34:07,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:34:07,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:34:07,881 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2020-10-20 06:34:07,881 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:34:07,881 INFO L794 eck$LassoCheckResult]: Stem: 283#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 284#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 285#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 281#L21 assume main_~y~0 < main_~x~0; 282#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 287#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 289#L22-2 assume !(main_~y~0 < main_~x~0); 288#L21-1 main_~x~0 := main_~x~0 - 1; 286#L19-2 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 279#L21 assume main_~y~0 < main_~x~0; 280#L22-2 [2020-10-20 06:34:07,882 INFO L796 eck$LassoCheckResult]: Loop: 280#L22-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 280#L22-2 [2020-10-20 06:34:07,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:07,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1691927373, now seen corresponding path program 2 times [2020-10-20 06:34:07,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:07,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441162842] [2020-10-20 06:34:07,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:07,891 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:07,899 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:07,901 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:07,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:07,901 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 4 times [2020-10-20 06:34:07,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:07,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908538841] [2020-10-20 06:34:07,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:07,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:07,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:07,908 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:07,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:07,909 INFO L82 PathProgramCache]: Analyzing trace with hash -910140986, now seen corresponding path program 3 times [2020-10-20 06:34:07,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:34:07,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051648848] [2020-10-20 06:34:07,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:34:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:07,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:34:07,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:34:07,945 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:34:08,021 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:34:08,022 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:34:08,022 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:34:08,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:34:08,022 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:34:08,022 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,022 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:34:08,022 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:34:08,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration5_Lasso [2020-10-20 06:34:08,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:34:08,023 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:34:08,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,133 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:34:08,134 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:08,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:08,154 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,158 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:34:08,158 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:08,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:08,206 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,210 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:34:08,210 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:08,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:08,248 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,253 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:34:08,254 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:08,294 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:08,294 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,299 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:34:08,299 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:08,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:34:08,341 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:08,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:34:08,390 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,515 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:34:08,516 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:34:08,516 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:34:08,516 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:34:08,517 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:34:08,517 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:34:08,517 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,517 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:34:08,517 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:34:08,517 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops.c_Iteration5_Lasso [2020-10-20 06:34:08,518 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:34:08,518 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:34:08,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:34:08,614 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:34:08,614 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:08,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:08,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:08,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:34:08,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:08,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:08,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:08,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:34:08,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,630 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:08,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:08,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:34:08,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:08,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:08,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:08,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:34:08,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:34:08,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,682 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:08,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:08,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:34:08,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:08,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:08,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:08,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:34:08,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:34:08,685 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:08,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:08,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:08,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:08,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:08,711 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:34:08,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:34:08,715 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:08,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:34:08,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:34:08,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:34:08,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:34:08,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:34:08,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:34:08,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,775 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:34:08,796 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-20 06:34:08,796 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:34:08,810 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:34:08,816 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 06:34:08,816 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:34:08,816 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2020-10-20 06:34:08,849 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-10-20 06:34:08,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:08,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:34:08,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:08,894 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:34:08,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:08,895 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 [2020-10-20 06:34:08,895 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-10-20 06:34:08,925 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 6 states. [2020-10-20 06:34:08,925 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 [2020-10-20 06:34:08,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:34:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2020-10-20 06:34:08,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2020-10-20 06:34:08,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:08,926 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:34:08,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:08,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:34:08,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:09,002 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:34:09,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:09,003 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 [2020-10-20 06:34:09,003 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-10-20 06:34:09,037 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 6 states. [2020-10-20 06:34:09,037 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 [2020-10-20 06:34:09,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:34:09,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2020-10-20 06:34:09,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2020-10-20 06:34:09,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:09,038 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-20 06:34:09,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:34:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:09,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:34:09,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:34:09,081 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:34:09,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:34:09,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:34:09,082 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 [2020-10-20 06:34:09,082 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-10-20 06:34:09,131 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 14 states and 16 transitions. Complement of second has 5 states. [2020-10-20 06:34:09,132 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 [2020-10-20 06:34:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:34:09,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-10-20 06:34:09,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 1 letters. [2020-10-20 06:34:09,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:09,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 1 letters. [2020-10-20 06:34:09,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:09,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-20 06:34:09,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:34:09,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2020-10-20 06:34:09,136 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:34:09,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-10-20 06:34:09,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:34:09,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:34:09,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:34:09,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:34:09,137 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:34:09,137 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:34:09,137 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:34:09,137 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 06:34:09,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:34:09,141 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:34:09,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:34:09,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:34:09 BoogieIcfgContainer [2020-10-20 06:34:09,147 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:34:09,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:34:09,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:34:09,147 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:34:09,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:53" (3/4) ... [2020-10-20 06:34:09,150 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:34:09,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:34:09,152 INFO L168 Benchmark]: Toolchain (without parser) took 16554.68 ms. Allocated memory was 40.9 MB in the beginning and 54.0 MB in the end (delta: 13.1 MB). Free memory was 19.4 MB in the beginning and 12.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 20.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:09,153 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 31.5 MB. Free memory was 7.6 MB in the beginning and 7.5 MB in the end (delta: 44.1 kB). Peak memory consumption was 44.1 kB. Max. memory is 14.3 GB. [2020-10-20 06:34:09,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.57 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 18.6 MB in the beginning and 20.5 MB in the end (delta: -2.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:09,155 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.98 ms. Allocated memory is still 41.9 MB. Free memory was 20.5 MB in the beginning and 19.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:09,156 INFO L168 Benchmark]: Boogie Preprocessor took 22.20 ms. Allocated memory is still 41.9 MB. Free memory was 19.0 MB in the beginning and 17.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:09,157 INFO L168 Benchmark]: RCFGBuilder took 249.08 ms. Allocated memory was 41.9 MB in the beginning and 43.0 MB in the end (delta: 1.0 MB). Free memory was 17.8 MB in the beginning and 23.0 MB in the end (delta: -5.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:09,158 INFO L168 Benchmark]: BuchiAutomizer took 15983.24 ms. Allocated memory was 43.0 MB in the beginning and 54.0 MB in the end (delta: 11.0 MB). Free memory was 23.0 MB in the beginning and 13.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:34:09,158 INFO L168 Benchmark]: Witness Printer took 3.37 ms. Allocated memory is still 54.0 MB. Free memory was 13.0 MB in the beginning and 12.5 MB in the end (delta: 512.0 kB). Peak memory consumption was 512.0 kB. Max. memory is 14.3 GB. [2020-10-20 06:34:09,163 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 31.5 MB. Free memory was 7.6 MB in the beginning and 7.5 MB in the end (delta: 44.1 kB). Peak memory consumption was 44.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 250.57 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 18.6 MB in the beginning and 20.5 MB in the end (delta: -2.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 35.98 ms. Allocated memory is still 41.9 MB. Free memory was 20.5 MB in the beginning and 19.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 22.20 ms. Allocated memory is still 41.9 MB. Free memory was 19.0 MB in the beginning and 17.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 249.08 ms. Allocated memory was 41.9 MB in the beginning and 43.0 MB in the end (delta: 1.0 MB). Free memory was 17.8 MB in the beginning and 23.0 MB in the end (delta: -5.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 15983.24 ms. Allocated memory was 43.0 MB in the beginning and 54.0 MB in the end (delta: 11.0 MB). Free memory was 23.0 MB in the beginning and 13.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 14.3 GB. * Witness Printer took 3.37 ms. Allocated memory is still 54.0 MB. Free memory was 13.0 MB in the beginning and 12.5 MB in the end (delta: 512.0 kB). Peak memory consumption was 512.0 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * y + 2147483645 and consists of 5 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 15.9s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 15.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 37 SDslu, 11 SDs, 0 SdLazy, 108 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf97 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf102 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...