./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.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 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:25:19,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:25:19,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:25:19,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:25:19,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:25:19,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:25:19,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:25:19,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:25:19,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:25:19,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:25:19,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:25:19,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:25:19,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:25:19,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:25:19,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:25:19,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:25:19,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:25:19,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:25:19,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:25:19,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:25:19,204 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:25:19,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:25:19,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:25:19,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:25:19,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:25:19,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:25:19,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:25:19,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:25:19,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:25:19,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:25:19,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:25:19,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:25:19,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:25:19,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:25:19,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:25:19,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:25:19,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:25:19,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:25:19,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:25:19,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:25:19,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:25:19,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:25:19,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:25:19,256 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:25:19,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:25:19,257 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:25:19,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:25:19,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:25:19,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:25:19,259 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:25:19,259 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:25:19,259 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:25:19,259 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:25:19,260 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:25:19,260 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:25:19,260 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:25:19,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:25:19,260 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:25:19,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:25:19,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:25:19,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:25:19,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:25:19,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:25:19,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:25:19,261 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:25:19,261 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:25:19,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:25:19,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:25:19,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:25:19,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:25:19,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:25:19,263 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:25:19,264 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2022-07-22 01:25:19,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:25:19,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:25:19,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:25:19,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:25:19,554 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:25:19,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-07-22 01:25:19,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de42d7777/8905a5fa00e4493c943a121fd33914a4/FLAG55e636c6a [2022-07-22 01:25:19,961 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:25:19,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-07-22 01:25:19,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de42d7777/8905a5fa00e4493c943a121fd33914a4/FLAG55e636c6a [2022-07-22 01:25:19,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de42d7777/8905a5fa00e4493c943a121fd33914a4 [2022-07-22 01:25:19,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:25:19,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:25:19,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:25:19,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:25:19,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:25:19,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:25:19" (1/1) ... [2022-07-22 01:25:19,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff68d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:19, skipping insertion in model container [2022-07-22 01:25:19,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:25:19" (1/1) ... [2022-07-22 01:25:19,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:25:20,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:25:20,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:25:20,125 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:25:20,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:25:20,145 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:25:20,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20 WrapperNode [2022-07-22 01:25:20,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:25:20,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:25:20,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:25:20,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:25:20,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (1/1) ... [2022-07-22 01:25:20,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (1/1) ... [2022-07-22 01:25:20,205 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-07-22 01:25:20,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:25:20,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:25:20,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:25:20,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:25:20,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (1/1) ... [2022-07-22 01:25:20,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (1/1) ... [2022-07-22 01:25:20,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (1/1) ... [2022-07-22 01:25:20,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (1/1) ... [2022-07-22 01:25:20,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (1/1) ... [2022-07-22 01:25:20,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (1/1) ... [2022-07-22 01:25:20,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (1/1) ... [2022-07-22 01:25:20,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:25:20,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:25:20,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:25:20,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:25:20,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (1/1) ... [2022-07-22 01:25:20,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:20,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:20,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:20,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 01:25:20,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:25:20,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:25:20,323 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:25:20,325 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:25:20,424 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:25:20,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:25:20,429 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 01:25:20,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:25:20 BoogieIcfgContainer [2022-07-22 01:25:20,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:25:20,431 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:25:20,432 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:25:20,434 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:25:20,434 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:25:20,434 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:25:19" (1/3) ... [2022-07-22 01:25:20,436 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b167a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:25:20, skipping insertion in model container [2022-07-22 01:25:20,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:25:20,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:25:20" (2/3) ... [2022-07-22 01:25:20,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b167a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:25:20, skipping insertion in model container [2022-07-22 01:25:20,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:25:20,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:25:20" (3/3) ... [2022-07-22 01:25:20,438 INFO L354 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-07-22 01:25:20,495 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:25:20,496 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:25:20,496 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:25:20,496 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:25:20,496 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:25:20,496 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:25:20,497 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:25:20,497 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:25:20,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:20,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:25:20,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:20,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:20,513 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:25:20,513 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:25:20,513 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:25:20,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:20,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:25:20,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:20,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:20,515 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-22 01:25:20,515 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:25:20,519 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 5#L18-2true [2022-07-22 01:25:20,520 INFO L754 eck$LassoCheckResult]: Loop: 5#L18-2true assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 11#L19true assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 2#L19-2true main_~y~0#1 := main_~y~0#1 - 1; 5#L18-2true [2022-07-22 01:25:20,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:20,524 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-22 01:25:20,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:20,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871382779] [2022-07-22 01:25:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:20,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:20,602 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:20,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:20,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:20,627 INFO L85 PathProgramCache]: Analyzing trace with hash 41292, now seen corresponding path program 1 times [2022-07-22 01:25:20,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:20,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819666067] [2022-07-22 01:25:20,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:20,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:20,643 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:20,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:20,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:20,664 INFO L85 PathProgramCache]: Analyzing trace with hash 28700234, now seen corresponding path program 1 times [2022-07-22 01:25:20,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:20,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869693447] [2022-07-22 01:25:20,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:20,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:20,679 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:20,687 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:20,746 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:20,747 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:20,747 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:20,747 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:20,747 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:20,747 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:20,748 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:20,748 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:20,748 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2022-07-22 01:25:20,748 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:20,748 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:20,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:20,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:20,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:20,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:20,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:20,835 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:20,836 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:20,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:20,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:20,841 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:20,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:20,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:20,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-22 01:25:20,874 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:20,874 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:20,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:20,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:20,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:20,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:20,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-22 01:25:20,903 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:20,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:20,921 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:20,922 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:20,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:20,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:20,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:20,942 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:20,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-22 01:25:20,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:20,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:20,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:20,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:20,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:20,996 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:20,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-22 01:25:21,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:21,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:21,027 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:21,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-07-22 01:25:21,030 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:21,031 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:21,031 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:21,031 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:21,031 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:21,031 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,031 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:21,031 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:21,031 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2022-07-22 01:25:21,031 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:21,031 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:21,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,097 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:21,101 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:21,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:21,117 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:21,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:21,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:21,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:21,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:21,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:21,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-22 01:25:21,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:21,139 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:21,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:21,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:21,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:21,189 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:21,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-22 01:25:21,191 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:21,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:21,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:21,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:21,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:21,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:21,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:21,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:21,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:21,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:21,243 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:21,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-22 01:25:21,246 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:21,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:21,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:21,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:21,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:21,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:21,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:21,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:21,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:21,270 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:25:21,270 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:25:21,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:21,272 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:21,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-22 01:25:21,274 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:21,274 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:21,274 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:21,275 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2022-07-22 01:25:21,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-22 01:25:21,292 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:21,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:21,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:21,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:21,333 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:21,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:21,377 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 [2022-07-22 01:25:21,378 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:21,413 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 55 transitions. Complement of second has 8 states. [2022-07-22 01:25:21,414 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 [2022-07-22 01:25:21,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2022-07-22 01:25:21,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 2 letters. Loop has 3 letters. [2022-07-22 01:25:21,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:21,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. [2022-07-22 01:25:21,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:21,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 2 letters. Loop has 6 letters. [2022-07-22 01:25:21,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:21,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 55 transitions. [2022-07-22 01:25:21,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:25:21,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 15 states and 21 transitions. [2022-07-22 01:25:21,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-07-22 01:25:21,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-22 01:25:21,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2022-07-22 01:25:21,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:21,425 INFO L369 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-07-22 01:25:21,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2022-07-22 01:25:21,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-07-22 01:25:21,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:21,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2022-07-22 01:25:21,441 INFO L392 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-07-22 01:25:21,441 INFO L374 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2022-07-22 01:25:21,441 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:25:21,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2022-07-22 01:25:21,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:25:21,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:21,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:21,442 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-22 01:25:21,442 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 01:25:21,442 INFO L752 eck$LassoCheckResult]: Stem: 96#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 97#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 98#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 100#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 101#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 102#L20-2 [2022-07-22 01:25:21,442 INFO L754 eck$LassoCheckResult]: Loop: 102#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 102#L20-2 [2022-07-22 01:25:21,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:21,443 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2022-07-22 01:25:21,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:21,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548868388] [2022-07-22 01:25:21,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:21,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,448 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:21,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:21,452 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2022-07-22 01:25:21,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:21,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577549873] [2022-07-22 01:25:21,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:21,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,455 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:21,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:21,458 INFO L85 PathProgramCache]: Analyzing trace with hash 889692614, now seen corresponding path program 2 times [2022-07-22 01:25:21,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:21,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828979310] [2022-07-22 01:25:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:21,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,463 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:21,481 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:21,481 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:21,481 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:21,481 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:21,481 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:21,481 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,481 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:21,481 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:21,481 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2022-07-22 01:25:21,481 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:21,481 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:21,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,517 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:21,518 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:21,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:21,519 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:21,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-22 01:25:21,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:21,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:21,558 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:21,558 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:21,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:21,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:21,579 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:21,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-22 01:25:21,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:21,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:21,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:21,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:21,612 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:21,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-22 01:25:21,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:21,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:21,724 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:21,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-07-22 01:25:21,728 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:21,729 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:21,729 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:21,729 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:21,729 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:21,729 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,729 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:21,729 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:21,729 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2022-07-22 01:25:21,729 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:21,729 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:21,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:21,775 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:21,775 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:21,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:21,776 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:21,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:21,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:21,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:21,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:21,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:21,800 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:21,800 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:21,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-22 01:25:21,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:21,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:21,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:21,836 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:21,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-22 01:25:21,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:21,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:21,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:21,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:21,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:21,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:21,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:21,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:21,849 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:21,851 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:25:21,851 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:25:21,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:21,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:21,852 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:21,858 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:21,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:21,858 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:21,858 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2022-07-22 01:25:21,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-22 01:25:21,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:21,882 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:21,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-22 01:25:21,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:21,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:21,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:21,922 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:21,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:21,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:21,924 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 01:25:21,924 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8 Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:21,944 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 8. Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 40 transitions. Complement of second has 6 states. [2022-07-22 01:25:21,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:21,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2022-07-22 01:25:21,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 1 letters. [2022-07-22 01:25:21,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:21,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 1 letters. [2022-07-22 01:25:21,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:21,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2022-07-22 01:25:21,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:21,948 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 40 transitions. [2022-07-22 01:25:21,949 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:25:21,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 27 transitions. [2022-07-22 01:25:21,950 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-22 01:25:21,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-22 01:25:21,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 27 transitions. [2022-07-22 01:25:21,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:21,950 INFO L369 hiAutomatonCegarLoop]: Abstraction has 19 states and 27 transitions. [2022-07-22 01:25:21,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 27 transitions. [2022-07-22 01:25:21,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2022-07-22 01:25:21,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 16 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:21,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2022-07-22 01:25:21,954 INFO L392 hiAutomatonCegarLoop]: Abstraction has 17 states and 25 transitions. [2022-07-22 01:25:21,954 INFO L374 stractBuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2022-07-22 01:25:21,955 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-22 01:25:21,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 25 transitions. [2022-07-22 01:25:21,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:25:21,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:21,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:21,958 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:25:21,958 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-22 01:25:21,959 INFO L752 eck$LassoCheckResult]: Stem: 176#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 177#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 186#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 180#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 188#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 187#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 182#L20-3 [2022-07-22 01:25:21,959 INFO L754 eck$LassoCheckResult]: Loop: 182#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 172#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 173#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 178#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 181#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 182#L20-3 [2022-07-22 01:25:21,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:21,960 INFO L85 PathProgramCache]: Analyzing trace with hash 889692612, now seen corresponding path program 1 times [2022-07-22 01:25:21,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:21,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103021054] [2022-07-22 01:25:21,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:21,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,973 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:21,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:21,978 INFO L85 PathProgramCache]: Analyzing trace with hash 54498765, now seen corresponding path program 1 times [2022-07-22 01:25:21,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:21,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407263576] [2022-07-22 01:25:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:21,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,982 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,985 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:21,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:21,986 INFO L85 PathProgramCache]: Analyzing trace with hash -476736022, now seen corresponding path program 1 times [2022-07-22 01:25:21,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:21,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501213517] [2022-07-22 01:25:21,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:21,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,992 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:21,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:22,029 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:22,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:22,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:22,029 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:22,029 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:22,029 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,029 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:22,029 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:22,029 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2022-07-22 01:25:22,029 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:22,030 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:22,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,101 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:22,101 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:22,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,104 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:22,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:22,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-22 01:25:22,133 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:22,133 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet1#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:22,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:22,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,150 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-22 01:25:22,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:22,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:22,181 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:22,181 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:22,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:22,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,205 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-22 01:25:22,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:22,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:22,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:22,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,250 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-22 01:25:22,252 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:22,252 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:22,348 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:22,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:22,351 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:22,351 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:22,351 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:22,352 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:22,352 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:22,352 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,352 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:22,352 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:22,352 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2022-07-22 01:25:22,352 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:22,352 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:22,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,441 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:22,441 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:22,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,443 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:22,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:22,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:22,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:22,467 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-22 01:25:22,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:22,468 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-22 01:25:22,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:22,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-22 01:25:22,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:22,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:22,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,508 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-22 01:25:22,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:22,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:22,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:22,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:22,518 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-22 01:25:22,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:22,519 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-22 01:25:22,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:22,542 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:22,545 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:25:22,545 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:25:22,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,547 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-22 01:25:22,549 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:22,549 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:22,549 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:22,549 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-07-22 01:25:22,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:22,568 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:22,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:22,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:22,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:22,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:22,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:22,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:22,656 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:22,656 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 25 transitions. cyclomatic complexity: 11 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:22,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:22,679 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 25 transitions. cyclomatic complexity: 11. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 47 states and 69 transitions. Complement of second has 8 states. [2022-07-22 01:25:22,680 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 [2022-07-22 01:25:22,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:22,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2022-07-22 01:25:22,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 5 letters. [2022-07-22 01:25:22,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:22,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 11 letters. Loop has 5 letters. [2022-07-22 01:25:22,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:22,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 10 letters. [2022-07-22 01:25:22,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:22,682 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 69 transitions. [2022-07-22 01:25:22,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:25:22,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 33 states and 47 transitions. [2022-07-22 01:25:22,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-07-22 01:25:22,684 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-07-22 01:25:22,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 47 transitions. [2022-07-22 01:25:22,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:22,685 INFO L369 hiAutomatonCegarLoop]: Abstraction has 33 states and 47 transitions. [2022-07-22 01:25:22,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 47 transitions. [2022-07-22 01:25:22,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2022-07-22 01:25:22,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:22,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2022-07-22 01:25:22,687 INFO L392 hiAutomatonCegarLoop]: Abstraction has 31 states and 45 transitions. [2022-07-22 01:25:22,687 INFO L374 stractBuchiCegarLoop]: Abstraction has 31 states and 45 transitions. [2022-07-22 01:25:22,688 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-22 01:25:22,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 45 transitions. [2022-07-22 01:25:22,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-07-22 01:25:22,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:22,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:22,689 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-07-22 01:25:22,689 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-22 01:25:22,689 INFO L752 eck$LassoCheckResult]: Stem: 299#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 300#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 301#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 302#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 309#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 310#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 323#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 321#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 318#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 317#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 315#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 313#L20-3 [2022-07-22 01:25:22,689 INFO L754 eck$LassoCheckResult]: Loop: 313#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 295#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 296#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 314#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 308#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 313#L20-3 [2022-07-22 01:25:22,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:22,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2076867052, now seen corresponding path program 2 times [2022-07-22 01:25:22,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:22,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024531693] [2022-07-22 01:25:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:22,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:25:22,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:25:22,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024531693] [2022-07-22 01:25:22,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024531693] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 01:25:22,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 01:25:22,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 01:25:22,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537291263] [2022-07-22 01:25:22,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 01:25:22,720 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-22 01:25:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:22,720 INFO L85 PathProgramCache]: Analyzing trace with hash 54498765, now seen corresponding path program 2 times [2022-07-22 01:25:22,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:22,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473893770] [2022-07-22 01:25:22,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:22,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:22,724 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:22,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:22,757 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:22,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:22,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:22,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:22,758 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:22,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:22,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:22,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2022-07-22 01:25:22,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:22,759 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:22,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:22,821 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:22,821 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:22,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,823 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-22 01:25:22,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:22,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:22,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:22,841 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:22,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-22 01:25:22,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,860 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-22 01:25:22,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:22,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:22,874 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:22,874 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet1#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:22,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-07-22 01:25:22,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,891 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-22 01:25:22,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:22,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:22,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-07-22 01:25:22,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:22,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:22,926 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:22,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-22 01:25:22,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:22,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:23,022 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:23,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-07-22 01:25:23,026 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:23,026 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:23,026 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:23,026 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:23,026 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:23,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,026 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:23,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:23,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2022-07-22 01:25:23,026 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:23,026 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:23,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,090 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:23,091 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:23,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:23,100 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:23,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-22 01:25:23,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:23,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:23,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:23,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:23,107 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-22 01:25:23,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:23,108 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-22 01:25:23,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:23,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:23,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-07-22 01:25:23,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:23,141 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:23,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-22 01:25:23,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:23,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:23,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:23,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:23,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:23,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:23,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:23,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:23,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:23,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:23,169 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:23,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-22 01:25:23,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:23,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:23,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:23,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:23,178 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-22 01:25:23,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:23,180 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-22 01:25:23,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:23,191 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:23,194 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:25:23,194 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:25:23,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:23,196 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:23,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-22 01:25:23,198 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:23,198 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:23,198 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:23,198 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-07-22 01:25:23,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:23,219 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:23,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:23,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:23,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:23,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:23,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:23,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:23,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:23,289 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:23,290 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 45 transitions. cyclomatic complexity: 20 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:23,302 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 45 transitions. cyclomatic complexity: 20. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 62 transitions. Complement of second has 7 states. [2022-07-22 01:25:23,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:23,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:23,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-07-22 01:25:23,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 5 letters. [2022-07-22 01:25:23,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:23,304 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:25:23,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:23,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:23,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:23,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:23,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:23,358 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:23,358 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 45 transitions. cyclomatic complexity: 20 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:23,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 45 transitions. cyclomatic complexity: 20. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 69 states and 98 transitions. Complement of second has 10 states. [2022-07-22 01:25:23,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:23,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 28 transitions. [2022-07-22 01:25:23,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 11 letters. Loop has 5 letters. [2022-07-22 01:25:23,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:23,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 16 letters. Loop has 5 letters. [2022-07-22 01:25:23,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:23,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 28 transitions. Stem has 11 letters. Loop has 10 letters. [2022-07-22 01:25:23,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:23,382 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 98 transitions. [2022-07-22 01:25:23,383 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2022-07-22 01:25:23,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 62 states and 86 transitions. [2022-07-22 01:25:23,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-07-22 01:25:23,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2022-07-22 01:25:23,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 86 transitions. [2022-07-22 01:25:23,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:23,385 INFO L369 hiAutomatonCegarLoop]: Abstraction has 62 states and 86 transitions. [2022-07-22 01:25:23,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 86 transitions. [2022-07-22 01:25:23,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2022-07-22 01:25:23,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 50 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 75 transitions. [2022-07-22 01:25:23,388 INFO L392 hiAutomatonCegarLoop]: Abstraction has 51 states and 75 transitions. [2022-07-22 01:25:23,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:25:23,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 01:25:23,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 01:25:23,391 INFO L87 Difference]: Start difference. First operand 51 states and 75 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:23,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:25:23,402 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2022-07-22 01:25:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 01:25:23,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 58 transitions. [2022-07-22 01:25:23,403 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-07-22 01:25:23,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 35 states and 49 transitions. [2022-07-22 01:25:23,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2022-07-22 01:25:23,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-22 01:25:23,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 49 transitions. [2022-07-22 01:25:23,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:23,404 INFO L369 hiAutomatonCegarLoop]: Abstraction has 35 states and 49 transitions. [2022-07-22 01:25:23,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 49 transitions. [2022-07-22 01:25:23,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-07-22 01:25:23,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.4) internal successors, (49), 34 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2022-07-22 01:25:23,406 INFO L392 hiAutomatonCegarLoop]: Abstraction has 35 states and 49 transitions. [2022-07-22 01:25:23,406 INFO L374 stractBuchiCegarLoop]: Abstraction has 35 states and 49 transitions. [2022-07-22 01:25:23,407 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-22 01:25:23,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 49 transitions. [2022-07-22 01:25:23,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2022-07-22 01:25:23,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:23,407 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:23,408 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-07-22 01:25:23,408 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-22 01:25:23,408 INFO L752 eck$LassoCheckResult]: Stem: 673#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 674#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 686#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 683#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 684#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 700#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 681#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 682#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 699#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 685#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 677#L20-2 [2022-07-22 01:25:23,408 INFO L754 eck$LassoCheckResult]: Loop: 677#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 678#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 687#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 669#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 670#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 675#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 677#L20-2 [2022-07-22 01:25:23,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:23,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1093000075, now seen corresponding path program 3 times [2022-07-22 01:25:23,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:23,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557576586] [2022-07-22 01:25:23,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:23,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,414 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:23,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:23,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1566202598, now seen corresponding path program 1 times [2022-07-22 01:25:23,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:23,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860069687] [2022-07-22 01:25:23,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:23,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,422 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:23,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:23,425 INFO L85 PathProgramCache]: Analyzing trace with hash -410261776, now seen corresponding path program 4 times [2022-07-22 01:25:23,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:23,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503517296] [2022-07-22 01:25:23,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:23,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,439 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:23,489 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:23,489 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:23,489 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:23,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:23,489 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:23,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,490 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:23,490 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:23,490 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2022-07-22 01:25:23,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:23,490 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:23,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,566 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:23,567 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:23,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:23,587 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:23,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-22 01:25:23,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:23,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:23,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-07-22 01:25:23,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:23,622 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:23,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-22 01:25:23,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:23,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:23,665 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:23,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-07-22 01:25:23,668 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:23,668 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:23,668 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:23,668 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:23,668 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:23,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:23,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:23,668 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2022-07-22 01:25:23,668 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:23,668 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:23,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,749 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:23,749 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:23,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:23,750 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:23,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-22 01:25:23,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:23,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:23,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:23,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:23,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:23,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:23,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:23,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:23,761 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:23,762 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-22 01:25:23,762 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:25:23,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:23,763 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:23,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-22 01:25:23,765 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:23,765 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:23,765 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:23,765 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-07-22 01:25:23,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:23,781 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:23,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:23,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:23,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:23,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:23,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 01:25:23,844 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:23,844 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 49 transitions. cyclomatic complexity: 20 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:23,855 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 49 transitions. cyclomatic complexity: 20. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 100 states and 143 transitions. Complement of second has 6 states. [2022-07-22 01:25:23,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:23,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:23,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-22 01:25:23,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 6 letters. [2022-07-22 01:25:23,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:23,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 6 letters. [2022-07-22 01:25:23,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:23,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 12 letters. [2022-07-22 01:25:23,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:23,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 143 transitions. [2022-07-22 01:25:23,858 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2022-07-22 01:25:23,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 67 states and 96 transitions. [2022-07-22 01:25:23,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-07-22 01:25:23,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-07-22 01:25:23,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 96 transitions. [2022-07-22 01:25:23,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:23,859 INFO L369 hiAutomatonCegarLoop]: Abstraction has 67 states and 96 transitions. [2022-07-22 01:25:23,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 96 transitions. [2022-07-22 01:25:23,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 46. [2022-07-22 01:25:23,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 45 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 68 transitions. [2022-07-22 01:25:23,862 INFO L392 hiAutomatonCegarLoop]: Abstraction has 46 states and 68 transitions. [2022-07-22 01:25:23,862 INFO L374 stractBuchiCegarLoop]: Abstraction has 46 states and 68 transitions. [2022-07-22 01:25:23,862 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-22 01:25:23,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 68 transitions. [2022-07-22 01:25:23,862 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-07-22 01:25:23,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:23,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:23,863 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-07-22 01:25:23,863 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-22 01:25:23,863 INFO L752 eck$LassoCheckResult]: Stem: 880#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 881#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 893#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 890#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 884#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 885#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 908#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 905#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 903#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 904#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 894#L20-2 [2022-07-22 01:25:23,863 INFO L754 eck$LassoCheckResult]: Loop: 894#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 894#L20-2 [2022-07-22 01:25:23,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:23,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1093000075, now seen corresponding path program 5 times [2022-07-22 01:25:23,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:23,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824319961] [2022-07-22 01:25:23,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:23,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,879 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:23,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:23,883 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 2 times [2022-07-22 01:25:23,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:23,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485960684] [2022-07-22 01:25:23,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:23,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,885 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:23,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:23,887 INFO L85 PathProgramCache]: Analyzing trace with hash -476736020, now seen corresponding path program 6 times [2022-07-22 01:25:23,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:23,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560360708] [2022-07-22 01:25:23,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:23,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,891 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:23,894 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:23,904 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:23,904 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:23,904 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:23,904 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:23,904 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:23,905 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,905 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:23,905 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:23,905 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2022-07-22 01:25:23,905 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:23,905 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:23,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:23,933 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:23,933 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:23,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:23,934 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:23,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-22 01:25:23,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:23,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:23,957 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:23,958 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:23,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:23,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:23,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:23,976 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:23,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-07-22 01:25:23,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:23,978 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:23,989 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:23,989 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:24,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:24,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,005 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-07-22 01:25:24,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:24,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:24,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-07-22 01:25:24,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,031 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-22 01:25:24,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:24,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:24,142 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:24,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-07-22 01:25:24,145 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:24,146 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:24,146 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:24,146 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:24,146 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:24,146 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,146 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:24,146 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:24,146 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2022-07-22 01:25:24,146 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:24,146 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:24,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,183 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:24,183 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:24,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,185 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-07-22 01:25:24,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:24,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:24,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:24,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:24,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:24,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:24,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:24,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:24,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-07-22 01:25:24,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,225 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-22 01:25:24,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:24,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:24,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:24,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:24,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:24,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:24,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:24,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:24,279 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:24,281 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:25:24,281 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:25:24,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,282 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-22 01:25:24,284 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:24,284 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:24,284 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:24,284 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2022-07-22 01:25:24,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:24,301 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:24,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:24,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:24,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:24,329 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:24,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:24,330 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 01:25:24,330 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 68 transitions. cyclomatic complexity: 30 Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:24,338 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 68 transitions. cyclomatic complexity: 30. Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 75 transitions. Complement of second has 5 states. [2022-07-22 01:25:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:24,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:24,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-07-22 01:25:24,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2022-07-22 01:25:24,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:24,343 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:25:24,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:24,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:24,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:24,367 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:24,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:24,368 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 01:25:24,368 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 68 transitions. cyclomatic complexity: 30 Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:24,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 68 transitions. cyclomatic complexity: 30. Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 52 states and 75 transitions. Complement of second has 5 states. [2022-07-22 01:25:24,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:24,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-07-22 01:25:24,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 10 letters. Loop has 1 letters. [2022-07-22 01:25:24,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:24,383 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:25:24,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:24,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:24,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:24,420 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:24,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:24,421 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-07-22 01:25:24,421 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 68 transitions. cyclomatic complexity: 30 Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:24,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:24,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:24,445 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 68 transitions. cyclomatic complexity: 30. Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 88 transitions. Complement of second has 4 states. [2022-07-22 01:25:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:24,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:24,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2022-07-22 01:25:24,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 1 letters. [2022-07-22 01:25:24,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:24,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 1 letters. [2022-07-22 01:25:24,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:24,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 2 letters. [2022-07-22 01:25:24,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:24,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 88 transitions. [2022-07-22 01:25:24,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:24,448 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 45 states and 62 transitions. [2022-07-22 01:25:24,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-22 01:25:24,448 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-22 01:25:24,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 62 transitions. [2022-07-22 01:25:24,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:24,448 INFO L369 hiAutomatonCegarLoop]: Abstraction has 45 states and 62 transitions. [2022-07-22 01:25:24,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 62 transitions. [2022-07-22 01:25:24,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-07-22 01:25:24,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:24,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2022-07-22 01:25:24,450 INFO L392 hiAutomatonCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-07-22 01:25:24,451 INFO L374 stractBuchiCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-07-22 01:25:24,451 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-22 01:25:24,451 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 54 transitions. [2022-07-22 01:25:24,451 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:24,451 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:24,451 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:24,452 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1] [2022-07-22 01:25:24,452 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:25:24,452 INFO L752 eck$LassoCheckResult]: Stem: 1221#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1222#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 1223#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1224#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1226#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 1227#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1230#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 1219#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1220#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1225#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1232#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 1243#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1239#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 1237#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1238#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1233#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1217#L19-2 [2022-07-22 01:25:24,452 INFO L754 eck$LassoCheckResult]: Loop: 1217#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1218#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1234#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1217#L19-2 [2022-07-22 01:25:24,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:24,453 INFO L85 PathProgramCache]: Analyzing trace with hash -410261761, now seen corresponding path program 1 times [2022-07-22 01:25:24,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:24,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644882664] [2022-07-22 01:25:24,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:24,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:24,469 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:24,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:24,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash 59952, now seen corresponding path program 2 times [2022-07-22 01:25:24,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:24,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882903848] [2022-07-22 01:25:24,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:24,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:24,477 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:24,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:24,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:24,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1368832626, now seen corresponding path program 2 times [2022-07-22 01:25:24,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:24,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234990799] [2022-07-22 01:25:24,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:24,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-22 01:25:24,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:25:24,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234990799] [2022-07-22 01:25:24,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234990799] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:25:24,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346224717] [2022-07-22 01:25:24,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 01:25:24,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:25:24,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,512 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-07-22 01:25:24,545 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 01:25:24,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:25:24,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 01:25:24,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-22 01:25:24,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:25:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-22 01:25:24,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346224717] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:25:24,586 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:25:24,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2022-07-22 01:25:24,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114431147] [2022-07-22 01:25:24,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:25:24,599 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:24,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:24,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:24,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:24,599 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:24,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:24,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:24,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2022-07-22 01:25:24,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:24,599 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:24,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,633 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:24,634 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:24,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,635 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-07-22 01:25:24,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:24,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:24,644 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:24,645 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:24,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-07-22 01:25:24,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,663 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-07-22 01:25:24,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:24,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:24,676 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:24,677 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:24,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-07-22 01:25:24,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,693 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-07-22 01:25:24,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:24,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:24,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:24,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,719 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-07-22 01:25:24,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:24,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:24,772 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:24,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-07-22 01:25:24,776 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:24,776 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:24,776 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:24,776 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:24,776 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:24,776 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,776 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:24,776 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:24,776 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2022-07-22 01:25:24,776 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:24,776 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:24,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:24,821 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:24,822 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:24,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,823 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-07-22 01:25:24,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:24,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:24,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:24,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:24,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:24,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:24,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:24,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:24,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:24,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2022-07-22 01:25:24,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,865 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-07-22 01:25:24,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:24,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:24,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:24,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:24,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:24,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:24,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:24,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:24,889 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:24,891 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:25:24,892 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:25:24,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:24,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:24,893 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:24,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-07-22 01:25:24,895 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:24,895 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:24,895 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:24,895 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-07-22 01:25:24,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:24,912 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:24,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:24,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:24,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:24,946 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:24,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:24,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:24,959 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:24,959 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 54 transitions. cyclomatic complexity: 21 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:24,974 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 54 transitions. cyclomatic complexity: 21. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 119 states and 170 transitions. Complement of second has 7 states. [2022-07-22 01:25:24,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:24,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:24,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-22 01:25:24,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2022-07-22 01:25:24,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:24,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 19 letters. Loop has 3 letters. [2022-07-22 01:25:24,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:24,975 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 6 letters. [2022-07-22 01:25:24,975 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:24,976 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 170 transitions. [2022-07-22 01:25:24,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:24,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 92 states and 127 transitions. [2022-07-22 01:25:24,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-22 01:25:24,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-22 01:25:24,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 127 transitions. [2022-07-22 01:25:24,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:24,977 INFO L369 hiAutomatonCegarLoop]: Abstraction has 92 states and 127 transitions. [2022-07-22 01:25:24,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 127 transitions. [2022-07-22 01:25:24,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 69. [2022-07-22 01:25:24,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.391304347826087) internal successors, (96), 68 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:24,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 96 transitions. [2022-07-22 01:25:24,980 INFO L392 hiAutomatonCegarLoop]: Abstraction has 69 states and 96 transitions. [2022-07-22 01:25:24,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:25:24,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 01:25:24,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-22 01:25:24,988 INFO L87 Difference]: Start difference. First operand 69 states and 96 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:25,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:25:25,008 INFO L93 Difference]: Finished difference Result 100 states and 132 transitions. [2022-07-22 01:25:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 01:25:25,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 132 transitions. [2022-07-22 01:25:25,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:25,009 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 77 states and 106 transitions. [2022-07-22 01:25:25,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-22 01:25:25,010 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-22 01:25:25,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 106 transitions. [2022-07-22 01:25:25,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:25,010 INFO L369 hiAutomatonCegarLoop]: Abstraction has 77 states and 106 transitions. [2022-07-22 01:25:25,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 106 transitions. [2022-07-22 01:25:25,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2022-07-22 01:25:25,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 76 states have (on average 1.381578947368421) internal successors, (105), 75 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:25,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 105 transitions. [2022-07-22 01:25:25,013 INFO L392 hiAutomatonCegarLoop]: Abstraction has 76 states and 105 transitions. [2022-07-22 01:25:25,013 INFO L374 stractBuchiCegarLoop]: Abstraction has 76 states and 105 transitions. [2022-07-22 01:25:25,013 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-22 01:25:25,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 105 transitions. [2022-07-22 01:25:25,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:25,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:25,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:25,014 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 2, 2, 2, 2, 1, 1] [2022-07-22 01:25:25,014 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:25:25,015 INFO L752 eck$LassoCheckResult]: Stem: 1741#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1742#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 1743#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1744#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1746#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 1747#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 1808#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1749#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 1801#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1799#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1796#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1755#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1794#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1793#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1756#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 1766#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1762#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 1760#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1761#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1754#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1737#L19-2 [2022-07-22 01:25:25,015 INFO L754 eck$LassoCheckResult]: Loop: 1737#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1738#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1757#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1737#L19-2 [2022-07-22 01:25:25,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:25,015 INFO L85 PathProgramCache]: Analyzing trace with hash 33262129, now seen corresponding path program 3 times [2022-07-22 01:25:25,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:25,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529978804] [2022-07-22 01:25:25,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:25,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:25,024 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:25,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:25,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:25,032 INFO L85 PathProgramCache]: Analyzing trace with hash 59952, now seen corresponding path program 3 times [2022-07-22 01:25:25,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:25,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740739964] [2022-07-22 01:25:25,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:25,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:25,034 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:25,035 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:25,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:25,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:25,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1225330176, now seen corresponding path program 4 times [2022-07-22 01:25:25,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:25,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063174896] [2022-07-22 01:25:25,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:25,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:25,075 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 01:25:25,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 01:25:25,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063174896] [2022-07-22 01:25:25,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063174896] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 01:25:25,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336006614] [2022-07-22 01:25:25,075 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 01:25:25,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:25:25,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,076 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2022-07-22 01:25:25,099 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 01:25:25,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 01:25:25,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 01:25:25,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 01:25:25,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 01:25:25,151 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 01:25:25,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336006614] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 01:25:25,151 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 01:25:25,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2022-07-22 01:25:25,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149236271] [2022-07-22 01:25:25,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 01:25:25,163 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:25,163 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:25,163 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:25,163 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:25,163 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:25,163 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,163 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:25,163 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:25,163 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2022-07-22 01:25:25,163 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:25,163 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:25,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,193 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:25,193 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:25,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,194 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:25,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:25,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-07-22 01:25:25,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:25,211 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:25,227 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2022-07-22 01:25:25,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,229 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-07-22 01:25:25,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:25,261 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:25,267 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:25,268 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:25,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2022-07-22 01:25:25,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,285 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-07-22 01:25:25,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:25,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:25,300 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:25,300 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:25,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2022-07-22 01:25:25,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,317 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-07-22 01:25:25,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:25,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:25,332 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:25,333 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:25,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2022-07-22 01:25:25,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,351 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-07-22 01:25:25,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:25,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:25,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2022-07-22 01:25:25,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,377 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-07-22 01:25:25,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:25,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:25,430 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:25,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2022-07-22 01:25:25,434 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:25,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:25,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:25,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:25,434 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:25,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:25,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:25,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2022-07-22 01:25:25,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:25,434 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:25,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:25,479 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:25,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,480 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-07-22 01:25:25,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:25,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:25,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:25,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:25,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:25,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:25,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:25,506 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:25,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:25,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,524 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:25,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:25,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:25,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:25,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:25,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:25,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:25,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:25,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-07-22 01:25:25,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:25,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:25,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,567 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-07-22 01:25:25,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:25,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:25,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:25,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:25,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:25,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:25,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:25,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:25,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:25,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:25,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,617 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-07-22 01:25:25,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:25,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:25,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:25,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:25,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:25,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:25,626 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:25,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:25,627 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:25,629 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-22 01:25:25,629 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 01:25:25,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,630 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-07-22 01:25:25,632 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:25,632 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:25,632 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:25,632 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-07-22 01:25:25,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2022-07-22 01:25:25,648 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:25,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:25,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:25,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:25,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:25,708 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:25,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:25,722 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:25,722 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 105 transitions. cyclomatic complexity: 41 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:25,736 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 105 transitions. cyclomatic complexity: 41. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 96 states and 132 transitions. Complement of second has 7 states. [2022-07-22 01:25:25,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:25,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:25,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-22 01:25:25,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2022-07-22 01:25:25,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:25,737 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:25:25,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:25,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:25,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:25,771 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:25,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:25,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:25,785 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:25,785 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 105 transitions. cyclomatic complexity: 41 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:25,804 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 105 transitions. cyclomatic complexity: 41. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 139 states and 185 transitions. Complement of second has 9 states. [2022-07-22 01:25:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:25,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-07-22 01:25:25,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 20 letters. Loop has 3 letters. [2022-07-22 01:25:25,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:25,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 23 letters. Loop has 3 letters. [2022-07-22 01:25:25,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:25,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 20 letters. Loop has 6 letters. [2022-07-22 01:25:25,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:25,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 139 states and 185 transitions. [2022-07-22 01:25:25,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:25,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 139 states to 133 states and 176 transitions. [2022-07-22 01:25:25,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-22 01:25:25,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-22 01:25:25,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 176 transitions. [2022-07-22 01:25:25,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:25,808 INFO L369 hiAutomatonCegarLoop]: Abstraction has 133 states and 176 transitions. [2022-07-22 01:25:25,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 176 transitions. [2022-07-22 01:25:25,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 115. [2022-07-22 01:25:25,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 115 states have (on average 1.3565217391304347) internal successors, (156), 114 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:25,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 156 transitions. [2022-07-22 01:25:25,813 INFO L392 hiAutomatonCegarLoop]: Abstraction has 115 states and 156 transitions. [2022-07-22 01:25:25,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 01:25:25,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 01:25:25,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 01:25:25,813 INFO L87 Difference]: Start difference. First operand 115 states and 156 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:25,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 01:25:25,830 INFO L93 Difference]: Finished difference Result 287 states and 369 transitions. [2022-07-22 01:25:25,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 01:25:25,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 287 states and 369 transitions. [2022-07-22 01:25:25,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:25,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 287 states to 184 states and 240 transitions. [2022-07-22 01:25:25,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2022-07-22 01:25:25,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-07-22 01:25:25,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 240 transitions. [2022-07-22 01:25:25,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-22 01:25:25,833 INFO L369 hiAutomatonCegarLoop]: Abstraction has 184 states and 240 transitions. [2022-07-22 01:25:25,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 240 transitions. [2022-07-22 01:25:25,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 150. [2022-07-22 01:25:25,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.3466666666666667) internal successors, (202), 149 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:25,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 202 transitions. [2022-07-22 01:25:25,837 INFO L392 hiAutomatonCegarLoop]: Abstraction has 150 states and 202 transitions. [2022-07-22 01:25:25,837 INFO L374 stractBuchiCegarLoop]: Abstraction has 150 states and 202 transitions. [2022-07-22 01:25:25,838 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-22 01:25:25,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 202 transitions. [2022-07-22 01:25:25,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:25:25,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:25:25,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:25:25,839 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 3, 2, 2, 2, 2, 1, 1] [2022-07-22 01:25:25,839 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:25:25,839 INFO L752 eck$LassoCheckResult]: Stem: 2766#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2767#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 2768#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 2769#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2771#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 2772#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 2815#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2816#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 2814#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2809#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 2810#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 2800#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2799#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 2796#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2792#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 2793#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 2808#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 2781#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 2785#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 2784#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2783#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 2779#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 2762#L19-2 [2022-07-22 01:25:25,839 INFO L754 eck$LassoCheckResult]: Loop: 2762#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2763#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 2782#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 2762#L19-2 [2022-07-22 01:25:25,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:25,840 INFO L85 PathProgramCache]: Analyzing trace with hash -743097903, now seen corresponding path program 5 times [2022-07-22 01:25:25,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:25,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499905037] [2022-07-22 01:25:25,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:25,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:25,846 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:25,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:25,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:25,869 INFO L85 PathProgramCache]: Analyzing trace with hash 59952, now seen corresponding path program 4 times [2022-07-22 01:25:25,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:25,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639365267] [2022-07-22 01:25:25,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:25,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:25,871 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:25,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:25,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:25,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1368154528, now seen corresponding path program 6 times [2022-07-22 01:25:25,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:25:25,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924210771] [2022-07-22 01:25:25,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:25:25,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:25:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:25,878 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:25:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:25:25,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:25:25,896 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:25,897 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:25,897 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:25,897 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:25,897 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 01:25:25,897 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,897 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:25,897 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:25,897 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration9_Loop [2022-07-22 01:25:25,897 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:25,897 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:25,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:25,931 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:25,931 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 01:25:25,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,932 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-07-22 01:25:25,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:25,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:25,955 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:25,955 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:25,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2022-07-22 01:25:25,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:25,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:25,973 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:25,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-07-22 01:25:25,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:25,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:26,007 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:26,007 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:26,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:26,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:26,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:26,031 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:26,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-07-22 01:25:26,034 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:26,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:26,055 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 01:25:26,055 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 01:25:26,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:26,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:26,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:26,073 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:26,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-07-22 01:25:26,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 01:25:26,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:26,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2022-07-22 01:25:26,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:26,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:26,099 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:26,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-07-22 01:25:26,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 01:25:26,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 01:25:26,153 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 01:25:26,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2022-07-22 01:25:26,157 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:25:26,157 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:25:26,157 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:25:26,157 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:25:26,157 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:25:26,157 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:26,157 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:25:26,157 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:25:26,157 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration9_Loop [2022-07-22 01:25:26,157 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:25:26,157 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:25:26,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:26,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:26,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:26,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:26,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:25:26,202 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:25:26,203 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:25:26,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:26,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:26,204 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:26,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-07-22 01:25:26,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:26,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:26,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:26,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:26,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:26,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:26,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:26,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:26,213 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:26,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:26,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:26,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:26,230 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:26,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-07-22 01:25:26,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:26,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:26,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:26,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:26,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:26,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:25:26,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:25:26,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:26,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:26,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:26,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:26,285 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:26,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-07-22 01:25:26,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:26,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:26,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:26,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:26,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:26,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:26,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:26,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:26,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:25:26,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2022-07-22 01:25:26,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:26,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:26,312 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:26,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-07-22 01:25:26,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:25:26,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:25:26,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:25:26,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:25:26,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:25:26,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:25:26,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:25:26,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:25:26,321 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:25:26,323 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-22 01:25:26,324 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-22 01:25:26,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:25:26,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:25:26,325 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 01:25:26,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-07-22 01:25:26,326 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:25:26,326 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 01:25:26,327 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:25:26,327 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-07-22 01:25:26,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:26,343 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 01:25:26,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:26,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:26,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:26,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:26,402 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:26,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:26,418 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:26,419 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 150 states and 202 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:26,432 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 150 states and 202 transitions. cyclomatic complexity: 73. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 197 states and 266 transitions. Complement of second has 7 states. [2022-07-22 01:25:26,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-22 01:25:26,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 22 letters. Loop has 3 letters. [2022-07-22 01:25:26,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:26,433 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:25:26,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:26,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:26,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:26,489 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:26,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:26,503 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:26,503 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 150 states and 202 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:26,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 150 states and 202 transitions. cyclomatic complexity: 73. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 241 states and 317 transitions. Complement of second has 9 states. [2022-07-22 01:25:26,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-07-22 01:25:26,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 22 letters. Loop has 3 letters. [2022-07-22 01:25:26,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:26,527 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-22 01:25:26,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:25:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:26,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 01:25:26,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:25:26,568 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 01:25:26,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:25:26,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:25:26,583 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-22 01:25:26,584 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 150 states and 202 transitions. cyclomatic complexity: 73 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:26,598 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 150 states and 202 transitions. cyclomatic complexity: 73. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 254 states and 349 transitions. Complement of second has 8 states. [2022-07-22 01:25:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-22 01:25:26,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 01:25:26,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-22 01:25:26,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 22 letters. Loop has 3 letters. [2022-07-22 01:25:26,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:26,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 25 letters. Loop has 3 letters. [2022-07-22 01:25:26,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:26,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 22 letters. Loop has 6 letters. [2022-07-22 01:25:26,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:25:26,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 254 states and 349 transitions. [2022-07-22 01:25:26,601 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:25:26,601 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 254 states to 0 states and 0 transitions. [2022-07-22 01:25:26,601 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 01:25:26,601 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 01:25:26,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 01:25:26,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:25:26,602 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:26,602 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:26,602 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:25:26,602 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-22 01:25:26,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 01:25:26,602 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:25:26,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 01:25:26,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:25:26 BoogieIcfgContainer [2022-07-22 01:25:26,607 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:25:26,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:25:26,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:25:26,608 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:25:26,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:25:20" (3/4) ... [2022-07-22 01:25:26,610 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 01:25:26,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:25:26,611 INFO L158 Benchmark]: Toolchain (without parser) took 6629.74ms. Allocated memory was 58.7MB in the beginning and 104.9MB in the end (delta: 46.1MB). Free memory was 39.9MB in the beginning and 60.8MB in the end (delta: -21.0MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2022-07-22 01:25:26,611 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 41.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:25:26,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.41ms. Allocated memory is still 58.7MB. Free memory was 39.6MB in the beginning and 30.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 01:25:26,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.76ms. Allocated memory is still 58.7MB. Free memory was 30.8MB in the beginning and 43.2MB in the end (delta: -12.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:25:26,612 INFO L158 Benchmark]: Boogie Preprocessor took 15.42ms. Allocated memory is still 58.7MB. Free memory was 43.2MB in the beginning and 42.2MB in the end (delta: 985.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:25:26,612 INFO L158 Benchmark]: RCFGBuilder took 207.89ms. Allocated memory is still 58.7MB. Free memory was 42.2MB in the beginning and 34.4MB in the end (delta: 7.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 01:25:26,613 INFO L158 Benchmark]: BuchiAutomizer took 6176.16ms. Allocated memory was 58.7MB in the beginning and 104.9MB in the end (delta: 46.1MB). Free memory was 34.2MB in the beginning and 61.0MB in the end (delta: -26.8MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2022-07-22 01:25:26,613 INFO L158 Benchmark]: Witness Printer took 2.93ms. Allocated memory is still 104.9MB. Free memory was 61.0MB in the beginning and 60.8MB in the end (delta: 189.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:25:26,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 58.7MB. Free memory was 41.2MB in the beginning and 41.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.41ms. Allocated memory is still 58.7MB. Free memory was 39.6MB in the beginning and 30.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.76ms. Allocated memory is still 58.7MB. Free memory was 30.8MB in the beginning and 43.2MB in the end (delta: -12.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.42ms. Allocated memory is still 58.7MB. Free memory was 43.2MB in the beginning and 42.2MB in the end (delta: 985.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 207.89ms. Allocated memory is still 58.7MB. Free memory was 42.2MB in the beginning and 34.4MB in the end (delta: 7.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6176.16ms. Allocated memory was 58.7MB in the beginning and 104.9MB in the end (delta: 46.1MB). Free memory was 34.2MB in the beginning and 61.0MB in the end (delta: -26.8MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Witness Printer took 2.93ms. Allocated memory is still 104.9MB. Free memory was 61.0MB in the beginning and 60.8MB in the end (delta: 189.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (3 trivial, 7 deterministic, 2 nondeterministic). One deterministic module has affine ranking function 2 * y + 1 and consists of 5 locations. One deterministic module has affine ranking function 2 * m + -2 * y + 1 and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 6 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function 2 * m + -2 * y + 1 and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.1s and 10 iterations. TraceHistogramMax:5. Analysis of lassos took 4.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 11. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 118 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 2, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 204 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 261 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 171 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT2 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax164 hnf100 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf94 smp100 dnf115 smp100 tf110 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 54ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 01:25:26,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2022-07-22 01:25:26,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2022-07-22 01:25:27,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE