./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 3dbbec33 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-?-3dbbec3 [2023-02-14 14:41:26,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:41:26,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:41:26,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:41:26,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:41:26,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:41:26,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:41:26,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:41:26,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:41:26,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:41:26,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:41:26,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:41:26,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:41:26,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:41:26,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:41:26,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:41:26,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:41:26,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:41:26,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:41:26,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:41:26,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:41:26,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:41:26,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:41:26,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:41:26,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:41:26,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:41:26,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:41:26,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:41:26,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:41:26,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:41:26,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:41:26,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:41:26,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:41:26,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:41:26,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:41:26,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:41:26,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:41:26,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:41:26,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:41:26,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:41:26,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:41:26,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 14:41:26,262 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:41:26,262 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:41:26,262 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:41:26,262 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:41:26,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:41:26,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:41:26,264 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:41:26,265 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 14:41:26,265 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 14:41:26,265 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 14:41:26,265 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 14:41:26,266 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 14:41:26,266 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 14:41:26,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:41:26,266 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:41:26,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:41:26,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:41:26,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 14:41:26,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 14:41:26,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 14:41:26,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:41:26,267 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 14:41:26,267 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:41:26,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 14:41:26,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:41:26,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:41:26,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:41:26,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:41:26,269 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 14:41:26,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2023-02-14 14:41:26,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:41:26,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:41:26,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:41:26,447 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:41:26,447 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:41:26,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-02-14 14:41:27,341 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:41:27,473 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:41:27,475 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-02-14 14:41:27,479 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6543df5/9cf23c5b5c49435ba5dffb8c25a36075/FLAG6a95183bc [2023-02-14 14:41:27,493 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6543df5/9cf23c5b5c49435ba5dffb8c25a36075 [2023-02-14 14:41:27,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:41:27,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:41:27,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:41:27,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:41:27,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:41:27,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d37929c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27, skipping insertion in model container [2023-02-14 14:41:27,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:41:27,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:41:27,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:41:27,623 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:41:27,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:41:27,639 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:41:27,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27 WrapperNode [2023-02-14 14:41:27,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:41:27,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:41:27,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:41:27,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:41:27,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,658 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-14 14:41:27,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:41:27,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:41:27,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:41:27,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:41:27,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,671 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:41:27,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:41:27,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:41:27,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:41:27,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (1/1) ... [2023-02-14 14:41:27,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:27,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:27,695 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) [2023-02-14 14:41:27,702 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 [2023-02-14 14:41:27,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:41:27,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:41:27,773 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:41:27,775 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:41:27,824 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:41:27,828 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:41:27,828 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 14:41:27,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:27 BoogieIcfgContainer [2023-02-14 14:41:27,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:41:27,830 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 14:41:27,830 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 14:41:27,832 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 14:41:27,833 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:27,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 02:41:27" (1/3) ... [2023-02-14 14:41:27,833 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fbece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:41:27, skipping insertion in model container [2023-02-14 14:41:27,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:27,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:27" (2/3) ... [2023-02-14 14:41:27,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fbece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:41:27, skipping insertion in model container [2023-02-14 14:41:27,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:27,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:27" (3/3) ... [2023-02-14 14:41:27,835 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-02-14 14:41:27,868 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 14:41:27,868 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 14:41:27,868 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 14:41:27,868 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 14:41:27,868 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 14:41:27,868 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 14:41:27,868 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 14:41:27,869 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 14:41:27,871 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) [2023-02-14 14:41:27,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-14 14:41:27,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:27,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:27,885 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:41:27,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:41:27,885 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 14:41:27,885 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) [2023-02-14 14:41:27,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-14 14:41:27,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:27,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:27,886 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:41:27,886 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:41:27,891 INFO L748 eck$LassoCheckResult]: Stem: 9#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 5#L18-2true [2023-02-14 14:41:27,892 INFO L750 eck$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 [2023-02-14 14:41:27,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:27,895 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-14 14:41:27,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:27,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98862914] [2023-02-14 14:41:27,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:27,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:27,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:27,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:27,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:27,963 INFO L85 PathProgramCache]: Analyzing trace with hash 41292, now seen corresponding path program 1 times [2023-02-14 14:41:27,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:27,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689908980] [2023-02-14 14:41:27,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:27,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:27,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:27,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:27,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:27,975 INFO L85 PathProgramCache]: Analyzing trace with hash 28700234, now seen corresponding path program 1 times [2023-02-14 14:41:27,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:27,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120423911] [2023-02-14 14:41:27,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:27,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:27,982 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:27,986 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:28,034 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:28,035 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:28,035 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:28,035 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:28,035 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:28,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,035 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:28,035 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:28,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2023-02-14 14:41:28,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:28,035 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:28,047 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,055 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,058 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,064 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,067 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,135 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:28,136 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:28,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,161 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) [2023-02-14 14:41:28,162 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 [2023-02-14 14:41:28,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:28,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:28,186 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:28,186 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: [] [2023-02-14 14:41:28,192 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 [2023-02-14 14:41:28,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,193 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) [2023-02-14 14:41:28,224 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 [2023-02-14 14:41:28,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:28,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:28,245 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:28,245 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: [] [2023-02-14 14:41:28,251 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 [2023-02-14 14:41:28,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,253 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) [2023-02-14 14:41:28,256 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 [2023-02-14 14:41:28,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:28,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:28,281 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 [2023-02-14 14:41:28,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,283 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) [2023-02-14 14:41:28,283 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 [2023-02-14 14:41:28,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:28,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:28,325 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:28,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:28,333 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:28,333 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:28,333 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:28,333 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:28,333 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:28,333 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,333 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:28,333 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:28,333 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2023-02-14 14:41:28,333 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:28,333 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:28,335 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,347 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,350 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,361 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,364 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,418 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:28,421 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:28,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,427 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) [2023-02-14 14:41:28,428 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 [2023-02-14 14:41:28,429 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 [2023-02-14 14:41:28,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:28,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:28,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:28,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:28,440 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:28,440 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:28,457 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:28,460 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 [2023-02-14 14:41:28,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,462 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) [2023-02-14 14:41:28,462 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 [2023-02-14 14:41:28,464 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 [2023-02-14 14:41:28,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:28,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:28,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:28,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:28,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:28,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:28,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:28,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-14 14:41:28,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,490 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) [2023-02-14 14:41:28,490 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 [2023-02-14 14:41:28,493 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 [2023-02-14 14:41:28,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:28,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:28,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:28,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:28,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:28,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:28,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:28,509 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:28,512 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:28,512 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:41:28,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,514 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) [2023-02-14 14:41:28,515 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 [2023-02-14 14:41:28,517 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:28,517 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:28,517 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:28,517 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 [] [2023-02-14 14:41:28,522 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 [2023-02-14 14:41:28,525 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:28,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:28,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:28,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:28,565 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:28,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:28,638 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 14:41:28,639 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) [2023-02-14 14:41:28,677 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. [2023-02-14 14:41:28,679 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 [2023-02-14 14:41:28,682 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) [2023-02-14 14:41:28,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2023-02-14 14:41:28,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-14 14:41:28,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:28,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-14 14:41:28,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:28,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-14 14:41:28,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:28,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 55 transitions. [2023-02-14 14:41:28,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-14 14:41:28,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 15 states and 21 transitions. [2023-02-14 14:41:28,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-14 14:41:28,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-14 14:41:28,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2023-02-14 14:41:28,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:28,689 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-14 14:41:28,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2023-02-14 14:41:28,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-14 14:41:28,704 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) [2023-02-14 14:41:28,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2023-02-14 14:41:28,705 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-14 14:41:28,705 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-14 14:41:28,705 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 14:41:28,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2023-02-14 14:41:28,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-14 14:41:28,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:28,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:28,706 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-14 14:41:28,706 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:41:28,706 INFO L748 eck$LassoCheckResult]: Stem: 103#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 104#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; 95#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 97#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 98#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; 99#L20-2 [2023-02-14 14:41:28,706 INFO L750 eck$LassoCheckResult]: Loop: 99#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; 99#L20-2 [2023-02-14 14:41:28,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:28,707 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-02-14 14:41:28,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:28,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054460388] [2023-02-14 14:41:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:28,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:28,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:28,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:28,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:28,716 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2023-02-14 14:41:28,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:28,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888821486] [2023-02-14 14:41:28,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:28,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:28,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:28,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:28,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash 889692614, now seen corresponding path program 2 times [2023-02-14 14:41:28,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:28,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348678223] [2023-02-14 14:41:28,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:28,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:28,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:28,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:28,743 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:28,743 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:28,743 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:28,743 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:28,743 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:28,743 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,743 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:28,743 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:28,743 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2023-02-14 14:41:28,743 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:28,743 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:28,744 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,751 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,753 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,780 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:28,780 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:28,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,781 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) [2023-02-14 14:41:28,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:28,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:28,805 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 [2023-02-14 14:41:28,811 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:28,811 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: [] [2023-02-14 14:41:28,816 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 [2023-02-14 14:41:28,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,817 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) [2023-02-14 14:41:28,818 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 [2023-02-14 14:41:28,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:28,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:28,839 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 [2023-02-14 14:41:28,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:28,840 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) [2023-02-14 14:41:28,843 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 [2023-02-14 14:41:28,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:28,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:28,949 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:28,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:28,953 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:28,953 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:28,953 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:28,953 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:28,953 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:28,953 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:28,953 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:28,953 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:28,953 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2023-02-14 14:41:28,953 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:28,953 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:28,954 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,961 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,980 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:28,983 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,010 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:29,011 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:29,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,012 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) [2023-02-14 14:41:29,017 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 [2023-02-14 14:41:29,018 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 [2023-02-14 14:41:29,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:29,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:29,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:29,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:29,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:29,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:29,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:29,054 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 [2023-02-14 14:41:29,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,056 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) [2023-02-14 14:41:29,058 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 [2023-02-14 14:41:29,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 14:41:29,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:29,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:29,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:29,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:29,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:29,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:29,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:29,082 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:29,084 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:29,084 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:41:29,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,087 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) [2023-02-14 14:41:29,088 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 [2023-02-14 14:41:29,114 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:29,114 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:29,114 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:29,114 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 [] [2023-02-14 14:41:29,120 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 [2023-02-14 14:41:29,121 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:29,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:29,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:29,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:29,150 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:29,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:29,152 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 14:41:29,152 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) [2023-02-14 14:41:29,171 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. [2023-02-14 14:41:29,171 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 [2023-02-14 14:41:29,172 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) [2023-02-14 14:41:29,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2023-02-14 14:41:29,172 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-14 14:41:29,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:29,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 1 letters. [2023-02-14 14:41:29,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:29,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 14:41:29,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:29,173 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 40 transitions. [2023-02-14 14:41:29,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-14 14:41:29,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 27 transitions. [2023-02-14 14:41:29,174 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-14 14:41:29,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-14 14:41:29,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 27 transitions. [2023-02-14 14:41:29,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:29,175 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 27 transitions. [2023-02-14 14:41:29,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 27 transitions. [2023-02-14 14:41:29,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2023-02-14 14:41:29,176 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) [2023-02-14 14:41:29,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2023-02-14 14:41:29,176 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 25 transitions. [2023-02-14 14:41:29,176 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2023-02-14 14:41:29,176 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-14 14:41:29,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 25 transitions. [2023-02-14 14:41:29,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-14 14:41:29,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:29,177 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:29,178 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-02-14 14:41:29,178 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-02-14 14:41:29,178 INFO L748 eck$LassoCheckResult]: Stem: 181#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 182#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 184#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 176#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 186#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 185#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 178#L20-3 [2023-02-14 14:41:29,178 INFO L750 eck$LassoCheckResult]: Loop: 178#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 170#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 171#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 174#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 177#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 178#L20-3 [2023-02-14 14:41:29,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:29,178 INFO L85 PathProgramCache]: Analyzing trace with hash 889692612, now seen corresponding path program 1 times [2023-02-14 14:41:29,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:29,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981044756] [2023-02-14 14:41:29,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:29,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:29,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:29,205 INFO L85 PathProgramCache]: Analyzing trace with hash 54498765, now seen corresponding path program 1 times [2023-02-14 14:41:29,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:29,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418070944] [2023-02-14 14:41:29,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:29,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,209 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:29,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:29,212 INFO L85 PathProgramCache]: Analyzing trace with hash -476736022, now seen corresponding path program 1 times [2023-02-14 14:41:29,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:29,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507026562] [2023-02-14 14:41:29,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:29,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:29,274 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:29,274 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:29,274 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:29,274 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:29,275 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:29,275 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,275 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:29,275 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:29,275 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2023-02-14 14:41:29,276 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:29,276 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:29,281 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,295 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,301 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,305 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-14 14:41:29,368 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:29,369 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:29,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:29,373 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) [2023-02-14 14:41:29,374 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 [2023-02-14 14:41:29,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:29,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:29,393 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:29,393 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: [] [2023-02-14 14:41:29,396 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 [2023-02-14 14:41:29,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,397 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) [2023-02-14 14:41:29,398 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 [2023-02-14 14:41:29,400 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:29,400 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:29,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:29,411 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: [] [2023-02-14 14:41:29,414 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 [2023-02-14 14:41:29,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,415 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) [2023-02-14 14:41:29,417 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 [2023-02-14 14:41:29,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:29,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:29,435 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 [2023-02-14 14:41:29,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,436 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) [2023-02-14 14:41:29,437 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 [2023-02-14 14:41:29,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:29,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:29,515 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:29,519 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 [2023-02-14 14:41:29,519 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:29,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:29,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:29,519 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:29,519 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:29,519 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,519 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:29,519 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:29,519 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2023-02-14 14:41:29,520 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:29,520 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:29,521 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,529 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,537 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,540 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,545 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,610 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:29,611 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:29,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,612 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) [2023-02-14 14:41:29,615 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 [2023-02-14 14:41:29,616 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 [2023-02-14 14:41:29,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:29,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:29,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:29,622 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:41:29,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:29,622 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:41:29,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:29,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:29,646 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 [2023-02-14 14:41:29,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,648 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) [2023-02-14 14:41:29,648 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 [2023-02-14 14:41:29,651 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 [2023-02-14 14:41:29,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:29,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:29,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:29,657 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:41:29,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:29,658 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:41:29,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:29,668 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:29,670 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:29,670 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:41:29,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,671 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) [2023-02-14 14:41:29,672 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 [2023-02-14 14:41:29,675 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:29,675 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:29,675 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:29,675 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 [] [2023-02-14 14:41:29,678 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 [2023-02-14 14:41:29,679 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:29,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:29,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:29,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:29,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:29,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:29,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:29,758 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:41:29,758 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) [2023-02-14 14:41:29,778 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. [2023-02-14 14:41:29,780 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 [2023-02-14 14:41:29,780 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) [2023-02-14 14:41:29,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2023-02-14 14:41:29,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 5 letters. [2023-02-14 14:41:29,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:29,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 11 letters. Loop has 5 letters. [2023-02-14 14:41:29,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:29,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 10 letters. [2023-02-14 14:41:29,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:29,782 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 69 transitions. [2023-02-14 14:41:29,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-14 14:41:29,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 33 states and 47 transitions. [2023-02-14 14:41:29,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-02-14 14:41:29,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-02-14 14:41:29,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 47 transitions. [2023-02-14 14:41:29,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:29,784 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 47 transitions. [2023-02-14 14:41:29,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 47 transitions. [2023-02-14 14:41:29,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2023-02-14 14:41:29,786 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) [2023-02-14 14:41:29,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2023-02-14 14:41:29,787 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 45 transitions. [2023-02-14 14:41:29,787 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 45 transitions. [2023-02-14 14:41:29,787 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-14 14:41:29,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 45 transitions. [2023-02-14 14:41:29,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-14 14:41:29,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:29,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:29,788 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-02-14 14:41:29,788 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-14 14:41:29,788 INFO L748 eck$LassoCheckResult]: Stem: 306#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 307#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; 296#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 297#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;main_~y~0#1 := 1 + main_~y~0#1; 314#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 304#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 294#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 295#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 299#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 300#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; 301#L20-2 [2023-02-14 14:41:29,788 INFO L750 eck$LassoCheckResult]: Loop: 301#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; 301#L20-2 [2023-02-14 14:41:29,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:29,789 INFO L85 PathProgramCache]: Analyzing trace with hash -476736020, now seen corresponding path program 2 times [2023-02-14 14:41:29,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:29,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571836766] [2023-02-14 14:41:29,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:29,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:29,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:29,813 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 2 times [2023-02-14 14:41:29,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:29,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573591856] [2023-02-14 14:41:29,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:29,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:29,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:29,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1893914709, now seen corresponding path program 3 times [2023-02-14 14:41:29,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:29,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287833977] [2023-02-14 14:41:29,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:29,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:29,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:29,843 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:29,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:29,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:29,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:29,844 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:29,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:29,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:29,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2023-02-14 14:41:29,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:29,844 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:29,845 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,847 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,851 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:29,880 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:29,880 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:29,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,881 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) [2023-02-14 14:41:29,884 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 [2023-02-14 14:41:29,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:29,886 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:29,907 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:29,907 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: [] [2023-02-14 14:41:29,910 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 [2023-02-14 14:41:29,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,912 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) [2023-02-14 14:41:29,914 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 [2023-02-14 14:41:29,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:29,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:29,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:29,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:29,939 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 [2023-02-14 14:41:29,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,941 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) [2023-02-14 14:41:29,944 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 [2023-02-14 14:41:29,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:29,946 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:29,956 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:29,957 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:29,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:29,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,963 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) [2023-02-14 14:41:29,964 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 [2023-02-14 14:41:29,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:29,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:29,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:29,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:29,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:29,999 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) [2023-02-14 14:41:30,000 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 [2023-02-14 14:41:30,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:30,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:30,107 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:30,110 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 [2023-02-14 14:41:30,110 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:30,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:30,111 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:30,111 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:30,111 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:30,111 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,111 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:30,111 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:30,111 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2023-02-14 14:41:30,111 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:30,111 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:30,112 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,115 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,117 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,166 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:30,167 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:30,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,168 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) [2023-02-14 14:41:30,170 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 [2023-02-14 14:41:30,171 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 [2023-02-14 14:41:30,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:30,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:30,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:30,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:30,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:30,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:30,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:30,198 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 [2023-02-14 14:41:30,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,199 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) [2023-02-14 14:41:30,199 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 [2023-02-14 14:41:30,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 14:41:30,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:30,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:30,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:30,208 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:41:30,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:30,208 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:41:30,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:30,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:30,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-02-14 14:41:30,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,228 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) [2023-02-14 14:41:30,230 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 [2023-02-14 14:41:30,232 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 [2023-02-14 14:41:30,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:30,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:30,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:30,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:30,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:30,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:30,254 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:30,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-02-14 14:41:30,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,259 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) [2023-02-14 14:41:30,266 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 [2023-02-14 14:41:30,266 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 [2023-02-14 14:41:30,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:30,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:30,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:30,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:30,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:30,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:30,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:30,288 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:30,291 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:30,291 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:41:30,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,301 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) [2023-02-14 14:41:30,304 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 [2023-02-14 14:41:30,305 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:30,305 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:30,305 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:30,305 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 [] [2023-02-14 14:41:30,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:30,311 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:30,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:30,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:30,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:30,346 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:30,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:30,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:30,347 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 14:41:30,347 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 45 transitions. cyclomatic complexity: 20 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) [2023-02-14 14:41:30,359 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 45 transitions. cyclomatic complexity: 20. 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 38 states and 54 transitions. Complement of second has 5 states. [2023-02-14 14:41:30,360 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 [2023-02-14 14:41:30,362 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) [2023-02-14 14:41:30,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2023-02-14 14:41:30,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-14 14:41:30,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:30,363 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:30,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:30,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:30,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:30,399 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:30,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:30,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:30,399 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 14:41:30,400 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 45 transitions. cyclomatic complexity: 20 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) [2023-02-14 14:41:30,415 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 45 transitions. cyclomatic complexity: 20. 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 38 states and 54 transitions. Complement of second has 5 states. [2023-02-14 14:41:30,416 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 [2023-02-14 14:41:30,417 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) [2023-02-14 14:41:30,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2023-02-14 14:41:30,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-14 14:41:30,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:30,417 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:30,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:30,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:30,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:30,447 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:30,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:30,448 INFO L141 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 [2023-02-14 14:41:30,449 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 45 transitions. cyclomatic complexity: 20 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) [2023-02-14 14:41:30,461 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 45 transitions. cyclomatic complexity: 20. 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 46 states and 71 transitions. Complement of second has 5 states. [2023-02-14 14:41:30,461 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 [2023-02-14 14:41:30,463 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) [2023-02-14 14:41:30,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2023-02-14 14:41:30,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-14 14:41:30,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:30,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 12 letters. Loop has 1 letters. [2023-02-14 14:41:30,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:30,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 11 letters. Loop has 2 letters. [2023-02-14 14:41:30,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:30,465 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 71 transitions. [2023-02-14 14:41:30,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-14 14:41:30,469 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 36 states and 51 transitions. [2023-02-14 14:41:30,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-02-14 14:41:30,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-02-14 14:41:30,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 51 transitions. [2023-02-14 14:41:30,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:30,469 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2023-02-14 14:41:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 51 transitions. [2023-02-14 14:41:30,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2023-02-14 14:41:30,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 28 states have internal predecessors, (42), 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) [2023-02-14 14:41:30,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2023-02-14 14:41:30,472 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 42 transitions. [2023-02-14 14:41:30,472 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2023-02-14 14:41:30,472 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-14 14:41:30,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 42 transitions. [2023-02-14 14:41:30,476 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-14 14:41:30,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:30,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:30,476 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-02-14 14:41:30,476 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-02-14 14:41:30,476 INFO L748 eck$LassoCheckResult]: Stem: 595#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 596#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 584#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 586#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 599#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 594#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 582#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 583#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 597#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 589#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 590#L20-2 [2023-02-14 14:41:30,476 INFO L750 eck$LassoCheckResult]: Loop: 590#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 593#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 580#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 581#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 600#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 601#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; 590#L20-2 [2023-02-14 14:41:30,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:30,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1041382945, now seen corresponding path program 4 times [2023-02-14 14:41:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:30,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197347886] [2023-02-14 14:41:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:30,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:30,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:30,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:41:30,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197347886] [2023-02-14 14:41:30,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197347886] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:41:30,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:41:30,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:41:30,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411145563] [2023-02-14 14:41:30,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:41:30,530 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-14 14:41:30,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:30,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1514585468, now seen corresponding path program 1 times [2023-02-14 14:41:30,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:30,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040996476] [2023-02-14 14:41:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:30,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:30,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:30,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:30,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:30,563 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 [2023-02-14 14:41:30,594 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:30,594 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:30,594 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:30,594 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:30,594 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:30,594 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,594 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:30,594 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:30,594 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2023-02-14 14:41:30,594 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:30,594 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:30,595 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,602 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,604 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,607 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,608 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,610 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,680 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:30,681 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:30,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,682 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) [2023-02-14 14:41:30,684 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 [2023-02-14 14:41:30,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:30,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:30,706 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:30,706 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~y~0#1=8, ULTIMATE.start_main_~m~0#1=7} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0, ULTIMATE.start_main_~y~0#1=8, ULTIMATE.start_main_~m~0#1=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:30,711 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 [2023-02-14 14:41:30,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,713 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) [2023-02-14 14:41:30,715 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 [2023-02-14 14:41:30,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:30,753 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:30,753 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:30,758 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 [2023-02-14 14:41:30,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,759 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) [2023-02-14 14:41:30,761 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 [2023-02-14 14:41:30,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:30,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:30,784 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:30,784 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: [] [2023-02-14 14:41:30,789 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 [2023-02-14 14:41:30,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,790 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) [2023-02-14 14:41:30,792 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 [2023-02-14 14:41:30,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:30,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:30,814 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:30,814 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:30,819 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 [2023-02-14 14:41:30,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,821 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) [2023-02-14 14:41:30,823 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 [2023-02-14 14:41:30,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:30,825 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:30,845 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:30,845 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:30,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:30,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,852 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) [2023-02-14 14:41:30,854 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 [2023-02-14 14:41:30,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:30,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:30,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:30,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:30,889 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) [2023-02-14 14:41:30,891 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 [2023-02-14 14:41:30,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:30,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:30,937 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:30,940 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 [2023-02-14 14:41:30,941 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:30,941 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:30,941 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:30,941 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:30,941 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:30,941 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:30,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:30,941 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:30,941 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2023-02-14 14:41:30,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:30,941 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:30,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,954 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,955 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,961 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:30,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,029 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:31,029 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:31,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,030 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) [2023-02-14 14:41:31,034 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 [2023-02-14 14:41:31,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 14:41:31,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:31,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,040 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:41:31,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,041 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:41:31,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:31,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:31,070 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 [2023-02-14 14:41:31,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,071 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) [2023-02-14 14:41:31,075 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 [2023-02-14 14:41:31,075 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 [2023-02-14 14:41:31,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:31,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,084 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:31,084 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:31,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:31,116 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 [2023-02-14 14:41:31,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,118 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-02-14 14:41:31,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-02-14 14:41:31,122 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 [2023-02-14 14:41:31,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:31,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,128 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:41:31,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,128 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:41:31,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:31,137 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:31,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-02-14 14:41:31,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,141 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) [2023-02-14 14:41:31,143 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 [2023-02-14 14:41:31,144 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 [2023-02-14 14:41:31,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:31,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,150 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:41:31,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,151 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:41:31,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:31,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:31,154 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 [2023-02-14 14:41:31,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,155 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) [2023-02-14 14:41:31,156 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 [2023-02-14 14:41:31,162 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 [2023-02-14 14:41:31,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:31,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:31,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:31,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:31,174 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 [2023-02-14 14:41:31,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,175 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) [2023-02-14 14:41:31,175 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 [2023-02-14 14:41:31,178 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 [2023-02-14 14:41:31,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:31,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:31,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:31,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:31,186 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:31,188 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:31,188 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:41:31,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,189 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) [2023-02-14 14:41:31,191 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 [2023-02-14 14:41:31,192 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:31,192 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:31,192 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:31,192 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 [] [2023-02-14 14:41:31,195 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 [2023-02-14 14:41:31,195 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:31,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:31,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:31,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:31,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:31,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:31,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:31,257 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:41:31,257 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 42 transitions. cyclomatic complexity: 18 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) [2023-02-14 14:41:31,267 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 42 transitions. cyclomatic complexity: 18. 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 64 states and 98 transitions. Complement of second has 6 states. [2023-02-14 14:41:31,267 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 [2023-02-14 14:41:31,268 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) [2023-02-14 14:41:31,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-14 14:41:31,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 10 letters. Loop has 6 letters. [2023-02-14 14:41:31,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:31,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 6 letters. [2023-02-14 14:41:31,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:31,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 10 letters. Loop has 12 letters. [2023-02-14 14:41:31,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:31,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 98 transitions. [2023-02-14 14:41:31,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:31,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 41 states and 59 transitions. [2023-02-14 14:41:31,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-14 14:41:31,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-14 14:41:31,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 59 transitions. [2023-02-14 14:41:31,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:31,280 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 59 transitions. [2023-02-14 14:41:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 59 transitions. [2023-02-14 14:41:31,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2023-02-14 14:41:31,282 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) [2023-02-14 14:41:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2023-02-14 14:41:31,283 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 49 transitions. [2023-02-14 14:41:31,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:41:31,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:41:31,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:41:31,285 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-02-14 14:41:31,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:41:31,296 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2023-02-14 14:41:31,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2023-02-14 14:41:31,296 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:31,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 24 states and 32 transitions. [2023-02-14 14:41:31,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-14 14:41:31,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-14 14:41:31,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2023-02-14 14:41:31,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:31,297 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2023-02-14 14:41:31,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2023-02-14 14:41:31,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-14 14:41:31,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 23 states have internal predecessors, (32), 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) [2023-02-14 14:41:31,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2023-02-14 14:41:31,298 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2023-02-14 14:41:31,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:41:31,298 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2023-02-14 14:41:31,299 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-14 14:41:31,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 32 transitions. [2023-02-14 14:41:31,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:31,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:31,299 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:31,299 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1] [2023-02-14 14:41:31,299 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:41:31,299 INFO L748 eck$LassoCheckResult]: Stem: 823#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 824#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 814#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 815#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 820#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 821#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 818#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 819#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 816#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 817#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 825#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 827#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 831#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 830#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 829#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 826#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 810#L19-2 [2023-02-14 14:41:31,299 INFO L750 eck$LassoCheckResult]: Loop: 810#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 811#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 828#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 810#L19-2 [2023-02-14 14:41:31,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash -410261761, now seen corresponding path program 1 times [2023-02-14 14:41:31,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:31,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793198748] [2023-02-14 14:41:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:31,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,305 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,310 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:31,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,310 INFO L85 PathProgramCache]: Analyzing trace with hash 59952, now seen corresponding path program 2 times [2023-02-14 14:41:31,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:31,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620315574] [2023-02-14 14:41:31,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:31,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:31,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1368832626, now seen corresponding path program 2 times [2023-02-14 14:41:31,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:31,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310884366] [2023-02-14 14:41:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:31,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-14 14:41:31,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:41:31,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310884366] [2023-02-14 14:41:31,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310884366] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:41:31,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707161833] [2023-02-14 14:41:31,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 14:41:31,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:41:31,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,362 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:41:31,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-02-14 14:41:31,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 14:41:31,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:41:31,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-14 14:41:31,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-14 14:41:31,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:41:31,433 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-14 14:41:31,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707161833] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:41:31,434 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:41:31,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-02-14 14:41:31,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733848971] [2023-02-14 14:41:31,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:41:31,448 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:31,448 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:31,448 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:31,448 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:31,448 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:31,448 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,448 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:31,449 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:31,449 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2023-02-14 14:41:31,449 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:31,449 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:31,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,451 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,452 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,454 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,456 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,482 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:31,482 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:31,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,484 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) [2023-02-14 14:41:31,486 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 [2023-02-14 14:41:31,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:31,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:31,508 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:31,508 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: [] [2023-02-14 14:41:31,511 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 [2023-02-14 14:41:31,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,512 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) [2023-02-14 14:41:31,514 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 [2023-02-14 14:41:31,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:31,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:31,536 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:31,537 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: [] [2023-02-14 14:41:31,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-02-14 14:41:31,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,541 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2023-02-14 14:41:31,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-02-14 14:41:31,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:31,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:31,560 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:31,560 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: [] [2023-02-14 14:41:31,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:31,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,564 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) [2023-02-14 14:41:31,565 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 [2023-02-14 14:41:31,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:31,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:31,574 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:31,575 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: [] [2023-02-14 14:41:31,578 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 [2023-02-14 14:41:31,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,579 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) [2023-02-14 14:41:31,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:31,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:31,593 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 [2023-02-14 14:41:31,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:31,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:31,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,604 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) [2023-02-14 14:41:31,605 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 [2023-02-14 14:41:31,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:31,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:31,658 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:31,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:31,662 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:31,662 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:31,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:31,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:31,662 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:31,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:31,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:31,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2023-02-14 14:41:31,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:31,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:31,663 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,665 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,667 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,669 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,671 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:31,699 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:31,700 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:31,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,709 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) [2023-02-14 14:41:31,711 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 [2023-02-14 14:41:31,712 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 [2023-02-14 14:41:31,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:31,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:31,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:31,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:31,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:31,737 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 [2023-02-14 14:41:31,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,738 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) [2023-02-14 14:41:31,738 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 [2023-02-14 14:41:31,768 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 [2023-02-14 14:41:31,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:31,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:31,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:31,786 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:31,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:31,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,790 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) [2023-02-14 14:41:31,791 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 [2023-02-14 14:41:31,793 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 [2023-02-14 14:41:31,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:31,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:31,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:31,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:31,814 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 [2023-02-14 14:41:31,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,815 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) [2023-02-14 14:41:31,815 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 [2023-02-14 14:41:31,818 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 [2023-02-14 14:41:31,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:31,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:31,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:31,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:31,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:31,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2023-02-14 14:41:31,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,829 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) [2023-02-14 14:41:31,830 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 [2023-02-14 14:41:31,832 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 [2023-02-14 14:41:31,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:31,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:31,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:31,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:31,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:31,839 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:31,839 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:31,848 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:31,850 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:31,850 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:41:31,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:31,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:31,851 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) [2023-02-14 14:41:31,853 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 [2023-02-14 14:41:31,855 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:31,855 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:31,855 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:31,855 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 [] [2023-02-14 14:41:31,861 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 [2023-02-14 14:41:31,861 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:31,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:31,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:31,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:31,889 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:31,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:31,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:31,901 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:41:31,902 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 12 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) [2023-02-14 14:41:31,915 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 32 transitions. cyclomatic complexity: 12. 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 65 states and 88 transitions. Complement of second has 7 states. [2023-02-14 14:41:31,919 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 [2023-02-14 14:41:31,919 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) [2023-02-14 14:41:31,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-14 14:41:31,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2023-02-14 14:41:31,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:31,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 19 letters. Loop has 3 letters. [2023-02-14 14:41:31,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:31,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 6 letters. [2023-02-14 14:41:31,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:31,920 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 88 transitions. [2023-02-14 14:41:31,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:31,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 46 states and 62 transitions. [2023-02-14 14:41:31,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-14 14:41:31,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-14 14:41:31,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 62 transitions. [2023-02-14 14:41:31,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:31,922 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 62 transitions. [2023-02-14 14:41:31,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 62 transitions. [2023-02-14 14:41:31,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2023-02-14 14:41:31,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 34 states have internal predecessors, (47), 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) [2023-02-14 14:41:31,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions. [2023-02-14 14:41:31,923 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 47 transitions. [2023-02-14 14:41:31,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:41:31,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 14:41:31,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:41:31,924 INFO L87 Difference]: Start difference. First operand 35 states and 47 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) [2023-02-14 14:41:31,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:41:31,939 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2023-02-14 14:41:31,939 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 69 transitions. [2023-02-14 14:41:31,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:31,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 46 states and 59 transitions. [2023-02-14 14:41:31,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-14 14:41:31,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-14 14:41:31,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 59 transitions. [2023-02-14 14:41:31,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:31,940 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 59 transitions. [2023-02-14 14:41:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 59 transitions. [2023-02-14 14:41:31,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2023-02-14 14:41:31,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 40 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) [2023-02-14 14:41:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2023-02-14 14:41:31,942 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 54 transitions. [2023-02-14 14:41:31,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 14:41:31,943 INFO L428 stractBuchiCegarLoop]: Abstraction has 41 states and 54 transitions. [2023-02-14 14:41:31,943 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-14 14:41:31,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 54 transitions. [2023-02-14 14:41:31,943 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:31,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:31,943 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:31,944 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 2, 2, 2, 2, 1, 1] [2023-02-14 14:41:31,944 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:41:31,944 INFO L748 eck$LassoCheckResult]: Stem: 1193#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1194#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; 1185#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1186#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1188#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; 1189#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; 1217#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1192#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 1183#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1184#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1187#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1207#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1210#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1206#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1204#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; 1199#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1203#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 1202#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1201#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1197#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1181#L19-2 [2023-02-14 14:41:31,944 INFO L750 eck$LassoCheckResult]: Loop: 1181#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1182#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1200#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1181#L19-2 [2023-02-14 14:41:31,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,944 INFO L85 PathProgramCache]: Analyzing trace with hash 33262129, now seen corresponding path program 3 times [2023-02-14 14:41:31,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:31,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239876346] [2023-02-14 14:41:31,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:31,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:31,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,957 INFO L85 PathProgramCache]: Analyzing trace with hash 59952, now seen corresponding path program 3 times [2023-02-14 14:41:31,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:31,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360403155] [2023-02-14 14:41:31,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:31,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:31,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:31,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:31,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1225330176, now seen corresponding path program 4 times [2023-02-14 14:41:31,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:31,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923505095] [2023-02-14 14:41:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:31,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-14 14:41:32,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:41:32,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923505095] [2023-02-14 14:41:32,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923505095] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:41:32,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106567769] [2023-02-14 14:41:32,020 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-14 14:41:32,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:41:32,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,021 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:41:32,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-02-14 14:41:32,048 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-14 14:41:32,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:41:32,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-14 14:41:32,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:32,073 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-14 14:41:32,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:41:32,106 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-14 14:41:32,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106567769] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:41:32,106 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:41:32,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2023-02-14 14:41:32,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668295668] [2023-02-14 14:41:32,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:41:32,119 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:32,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:32,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:32,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:32,119 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:32,119 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,119 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:32,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:32,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2023-02-14 14:41:32,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:32,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:32,120 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,122 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,124 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,127 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,128 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,154 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:32,155 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:32,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,156 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) [2023-02-14 14:41:32,156 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 [2023-02-14 14:41:32,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:32,170 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: [] [2023-02-14 14:41:32,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2023-02-14 14:41:32,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,173 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) [2023-02-14 14:41:32,173 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 [2023-02-14 14:41:32,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,176 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,190 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:32,190 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: [] [2023-02-14 14:41:32,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:32,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,194 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) [2023-02-14 14:41:32,196 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 [2023-02-14 14:41:32,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,221 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 [2023-02-14 14:41:32,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,222 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) [2023-02-14 14:41:32,223 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 [2023-02-14 14:41:32,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:32,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,275 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:32,278 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 [2023-02-14 14:41:32,278 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:32,278 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:32,278 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:32,278 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:32,278 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:32,278 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,278 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:32,278 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:32,278 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2023-02-14 14:41:32,278 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:32,278 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:32,279 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,288 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,293 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,294 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,320 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:32,320 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:32,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,322 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) [2023-02-14 14:41:32,323 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 [2023-02-14 14:41:32,325 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 [2023-02-14 14:41:32,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:32,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:32,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:32,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:32,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:32,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:32,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:32,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:32,334 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 [2023-02-14 14:41:32,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,335 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) [2023-02-14 14:41:32,336 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 [2023-02-14 14:41:32,339 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 [2023-02-14 14:41:32,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:32,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:32,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:32,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:32,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:32,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:32,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:32,354 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:32,356 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:32,356 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:41:32,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,359 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) [2023-02-14 14:41:32,360 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 [2023-02-14 14:41:32,361 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:32,361 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:32,361 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:32,361 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 [] [2023-02-14 14:41:32,363 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 [2023-02-14 14:41:32,364 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:32,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:32,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:32,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:32,400 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:32,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:32,413 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:41:32,413 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 20 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) [2023-02-14 14:41:32,428 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 20. 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 47 states and 62 transitions. Complement of second has 7 states. [2023-02-14 14:41:32,428 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 [2023-02-14 14:41:32,429 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) [2023-02-14 14:41:32,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-14 14:41:32,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2023-02-14 14:41:32,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:32,429 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:32,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:32,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:32,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:32,479 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:32,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:32,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:32,493 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:41:32,493 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 20 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) [2023-02-14 14:41:32,513 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 41 states and 54 transitions. cyclomatic complexity: 20. 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 75 states and 98 transitions. Complement of second has 9 states. [2023-02-14 14:41:32,514 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 [2023-02-14 14:41:32,515 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) [2023-02-14 14:41:32,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2023-02-14 14:41:32,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 20 letters. Loop has 3 letters. [2023-02-14 14:41:32,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:32,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 23 letters. Loop has 3 letters. [2023-02-14 14:41:32,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:32,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 20 letters. Loop has 6 letters. [2023-02-14 14:41:32,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:32,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 98 transitions. [2023-02-14 14:41:32,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:32,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 69 states and 90 transitions. [2023-02-14 14:41:32,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-14 14:41:32,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-14 14:41:32,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 90 transitions. [2023-02-14 14:41:32,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:32,518 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 90 transitions. [2023-02-14 14:41:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 90 transitions. [2023-02-14 14:41:32,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2023-02-14 14:41:32,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 60 states have internal predecessors, (81), 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) [2023-02-14 14:41:32,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2023-02-14 14:41:32,535 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 81 transitions. [2023-02-14 14:41:32,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:41:32,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 14:41:32,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:41:32,536 INFO L87 Difference]: Start difference. First operand 61 states and 81 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) [2023-02-14 14:41:32,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:41:32,555 INFO L93 Difference]: Finished difference Result 150 states and 189 transitions. [2023-02-14 14:41:32,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 189 transitions. [2023-02-14 14:41:32,558 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:32,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 108 states and 138 transitions. [2023-02-14 14:41:32,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-14 14:41:32,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-14 14:41:32,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 138 transitions. [2023-02-14 14:41:32,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:32,560 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 138 transitions. [2023-02-14 14:41:32,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 138 transitions. [2023-02-14 14:41:32,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 84. [2023-02-14 14:41:32,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 83 states have internal predecessors, (112), 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) [2023-02-14 14:41:32,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 112 transitions. [2023-02-14 14:41:32,566 INFO L240 hiAutomatonCegarLoop]: Abstraction has 84 states and 112 transitions. [2023-02-14 14:41:32,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:41:32,566 INFO L428 stractBuchiCegarLoop]: Abstraction has 84 states and 112 transitions. [2023-02-14 14:41:32,567 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-02-14 14:41:32,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states and 112 transitions. [2023-02-14 14:41:32,567 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 14:41:32,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:32,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:32,568 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 3, 2, 2, 2, 2, 1, 1] [2023-02-14 14:41:32,569 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 14:41:32,569 INFO L748 eck$LassoCheckResult]: Stem: 1878#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1879#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; 1884#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1880#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1881#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; 1873#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; 1875#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1915#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 1916#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1911#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1912#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1903#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1902#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1900#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1897#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; 1894#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; 1896#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; 1887#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 1890#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 1889#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1888#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1885#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1865#L19-2 [2023-02-14 14:41:32,569 INFO L750 eck$LassoCheckResult]: Loop: 1865#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1866#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 1869#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 1865#L19-2 [2023-02-14 14:41:32,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:32,569 INFO L85 PathProgramCache]: Analyzing trace with hash -743097903, now seen corresponding path program 5 times [2023-02-14 14:41:32,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:32,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966520700] [2023-02-14 14:41:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:32,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:32,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:32,598 INFO L85 PathProgramCache]: Analyzing trace with hash 59952, now seen corresponding path program 4 times [2023-02-14 14:41:32,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:32,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489143579] [2023-02-14 14:41:32,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:32,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:32,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:32,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1368154528, now seen corresponding path program 6 times [2023-02-14 14:41:32,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:32,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029205880] [2023-02-14 14:41:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:32,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:32,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:32,624 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:32,624 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:32,624 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:32,624 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:32,624 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:32,624 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,624 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:32,625 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:32,625 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2023-02-14 14:41:32,625 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:32,625 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:32,625 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,628 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,630 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,632 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,657 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:32,658 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:32,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,659 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) [2023-02-14 14:41:32,661 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 [2023-02-14 14:41:32,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,729 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:32,729 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: [] [2023-02-14 14:41:32,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2023-02-14 14:41:32,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,733 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) [2023-02-14 14:41:32,738 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 [2023-02-14 14:41:32,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,746 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:32,746 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: [] [2023-02-14 14:41:32,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:32,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,749 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) [2023-02-14 14:41:32,750 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 [2023-02-14 14:41:32,752 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,752 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,763 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:32,763 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: [] [2023-02-14 14:41:32,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2023-02-14 14:41:32,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,767 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) [2023-02-14 14:41:32,768 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 [2023-02-14 14:41:32,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,781 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:32,782 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: [] [2023-02-14 14:41:32,795 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 [2023-02-14 14:41:32,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,797 INFO L229 MonitoredProcess]: Starting monitored process 72 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) [2023-02-14 14:41:32,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2023-02-14 14:41:32,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:32,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2023-02-14 14:41:32,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,824 INFO L229 MonitoredProcess]: Starting monitored process 73 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) [2023-02-14 14:41:32,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2023-02-14 14:41:32,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:32,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:32,936 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:32,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:32,941 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:32,941 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:32,941 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:32,941 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:32,941 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:32,941 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:32,941 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:32,941 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2023-02-14 14:41:32,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:32,941 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:32,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,944 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,946 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,947 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:32,978 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:32,978 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:32,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:32,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:32,979 INFO L229 MonitoredProcess]: Starting monitored process 74 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) [2023-02-14 14:41:32,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2023-02-14 14:41:32,982 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 [2023-02-14 14:41:32,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:32,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:32,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:32,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:32,989 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:32,990 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:33,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:33,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:33,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:33,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:33,009 INFO L229 MonitoredProcess]: Starting monitored process 75 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) [2023-02-14 14:41:33,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2023-02-14 14:41:33,013 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 [2023-02-14 14:41:33,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:33,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:33,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:33,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:33,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:33,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:33,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:33,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:33,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:33,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:33,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:33,048 INFO L229 MonitoredProcess]: Starting monitored process 76 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) [2023-02-14 14:41:33,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2023-02-14 14:41:33,051 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 [2023-02-14 14:41:33,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:33,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:33,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:33,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:33,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:33,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:33,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:33,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:33,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:33,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:33,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:33,077 INFO L229 MonitoredProcess]: Starting monitored process 77 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) [2023-02-14 14:41:33,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2023-02-14 14:41:33,081 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 [2023-02-14 14:41:33,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:33,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:33,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:33,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:33,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:33,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:33,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:33,102 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:33,105 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:33,106 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:41:33,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:33,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:33,109 INFO L229 MonitoredProcess]: Starting monitored process 78 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) [2023-02-14 14:41:33,115 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:33,116 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:33,116 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:33,116 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 [] [2023-02-14 14:41:33,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2023-02-14 14:41:33,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:33,122 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:33,129 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 [2023-02-14 14:41:33,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:33,131 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 [2023-02-14 14:41:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:33,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:33,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:33,160 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:33,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:33,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:33,174 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:41:33,175 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 84 states and 112 transitions. cyclomatic complexity: 39 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) [2023-02-14 14:41:33,188 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 84 states and 112 transitions. cyclomatic complexity: 39. 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 102 states and 135 transitions. Complement of second has 7 states. [2023-02-14 14:41:33,188 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 [2023-02-14 14:41:33,189 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) [2023-02-14 14:41:33,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-14 14:41:33,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 22 letters. Loop has 3 letters. [2023-02-14 14:41:33,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:33,189 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:33,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:33,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:33,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:33,224 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:33,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:33,237 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 14:41:33,237 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 84 states and 112 transitions. cyclomatic complexity: 39 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) [2023-02-14 14:41:33,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 84 states and 112 transitions. cyclomatic complexity: 39. 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 129 states and 167 transitions. Complement of second has 9 states. [2023-02-14 14:41:33,253 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 [2023-02-14 14:41:33,253 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) [2023-02-14 14:41:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2023-02-14 14:41:33,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 22 letters. Loop has 3 letters. [2023-02-14 14:41:33,253 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:33,253 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:33,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:33,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:33,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:33,288 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:33,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:33,306 INFO L141 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 [2023-02-14 14:41:33,306 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 84 states and 112 transitions. cyclomatic complexity: 39 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) [2023-02-14 14:41:33,317 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 84 states and 112 transitions. cyclomatic complexity: 39. 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 140 states and 188 transitions. Complement of second has 8 states. [2023-02-14 14:41:33,318 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 [2023-02-14 14:41:33,318 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) [2023-02-14 14:41:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-02-14 14:41:33,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 22 letters. Loop has 3 letters. [2023-02-14 14:41:33,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:33,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 25 letters. Loop has 3 letters. [2023-02-14 14:41:33,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:33,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 22 letters. Loop has 6 letters. [2023-02-14 14:41:33,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:33,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 188 transitions. [2023-02-14 14:41:33,320 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:41:33,320 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 0 states and 0 transitions. [2023-02-14 14:41:33,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 14:41:33,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 14:41:33,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 14:41:33,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 14:41:33,320 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:41:33,320 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:41:33,320 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:41:33,320 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-02-14 14:41:33,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 14:41:33,320 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:41:33,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 14:41:33,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 02:41:33 BoogieIcfgContainer [2023-02-14 14:41:33,325 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 14:41:33,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:41:33,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:41:33,326 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:41:33,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:27" (3/4) ... [2023-02-14 14:41:33,328 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 14:41:33,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:41:33,328 INFO L158 Benchmark]: Toolchain (without parser) took 5831.91ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 97.8MB in the beginning and 137.5MB in the end (delta: -39.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-14 14:41:33,328 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 109.1MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:33,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 141.40ms. Allocated memory is still 146.8MB. Free memory was 97.3MB in the beginning and 88.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:41:33,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.81ms. Allocated memory is still 146.8MB. Free memory was 88.5MB in the beginning and 87.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:33,329 INFO L158 Benchmark]: Boogie Preprocessor took 13.86ms. Allocated memory is still 146.8MB. Free memory was 87.3MB in the beginning and 86.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:41:33,329 INFO L158 Benchmark]: RCFGBuilder took 156.09ms. Allocated memory is still 146.8MB. Free memory was 86.0MB in the beginning and 77.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:41:33,329 INFO L158 Benchmark]: BuchiAutomizer took 5495.44ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 77.2MB in the beginning and 138.6MB in the end (delta: -61.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:33,329 INFO L158 Benchmark]: Witness Printer took 2.08ms. Allocated memory is still 199.2MB. Free memory was 138.6MB in the beginning and 137.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:41:33,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 109.1MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 141.40ms. Allocated memory is still 146.8MB. Free memory was 97.3MB in the beginning and 88.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.81ms. Allocated memory is still 146.8MB. Free memory was 88.5MB in the beginning and 87.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.86ms. Allocated memory is still 146.8MB. Free memory was 87.3MB in the beginning and 86.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 156.09ms. Allocated memory is still 146.8MB. Free memory was 86.0MB in the beginning and 77.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5495.44ms. Allocated memory was 146.8MB in the beginning and 199.2MB in the end (delta: 52.4MB). Free memory was 77.2MB in the beginning and 138.6MB in the end (delta: -61.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.08ms. Allocated memory is still 199.2MB. Free memory was 138.6MB in the beginning and 137.5MB in the end (delta: 1.0MB). 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 11 terminating modules (3 trivial, 6 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 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 4 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 5.4s and 9 iterations. TraceHistogramMax:5. Analysis of lassos took 4.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 65 StatesRemovedByMinimization, 8 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, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 192 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 253 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 89 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 162 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 164 mSDtfsCounter, 162 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT2 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax167 hnf100 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf94 smp100 dnf112 smp99 tf111 neg99 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 23 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 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! [2023-02-14 14:41:33,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:33,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-02-14 14:41:33,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-02-14 14:41:33,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE