./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 b5317dae 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-?-b5317da-m [2023-02-16 04:30:37,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:30:37,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:30:37,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:30:37,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:30:37,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:30:37,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:30:37,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:30:37,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:30:37,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:30:37,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:30:37,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:30:37,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:30:37,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:30:37,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:30:37,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:30:37,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:30:37,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:30:37,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:30:37,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:30:37,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:30:37,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:30:37,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:30:37,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:30:37,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:30:37,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:30:37,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:30:37,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:30:37,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:30:37,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:30:37,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:30:37,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:30:37,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:30:37,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:30:37,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:30:37,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:30:37,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:30:37,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:30:37,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:30:37,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:30:37,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:30:37,833 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-16 04:30:37,870 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:30:37,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:30:37,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:30:37,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:30:37,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:30:37,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:30:37,878 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:30:37,878 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-16 04:30:37,879 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-16 04:30:37,879 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-16 04:30:37,880 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-16 04:30:37,880 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-16 04:30:37,880 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-16 04:30:37,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:30:37,881 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:30:37,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:30:37,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:30:37,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-16 04:30:37,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-16 04:30:37,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-16 04:30:37,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:30:37,882 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-16 04:30:37,882 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:30:37,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-16 04:30:37,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:30:37,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:30:37,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:30:37,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:30:37,885 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-16 04:30:37,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2023-02-16 04:30:38,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:30:38,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:30:38,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:30:38,143 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:30:38,143 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:30:38,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-02-16 04:30:39,358 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:30:39,504 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:30:39,504 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-02-16 04:30:39,508 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/049a1a1a0/d264022b5e8e4f1b91d010bb24aeaf30/FLAG90c8f8997 [2023-02-16 04:30:39,520 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/049a1a1a0/d264022b5e8e4f1b91d010bb24aeaf30 [2023-02-16 04:30:39,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:30:39,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:30:39,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:30:39,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:30:39,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:30:39,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38508a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39, skipping insertion in model container [2023-02-16 04:30:39,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:30:39,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:30:39,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:30:39,664 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:30:39,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:30:39,684 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:30:39,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39 WrapperNode [2023-02-16 04:30:39,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:30:39,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:30:39,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:30:39,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:30:39,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,710 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-16 04:30:39,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:30:39,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:30:39,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:30:39,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:30:39,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:30:39,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:30:39,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:30:39,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:30:39,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (1/1) ... [2023-02-16 04:30:39,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:39,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:39,759 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) [2023-02-16 04:30:39,767 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 [2023-02-16 04:30:39,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:30:39,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:30:39,871 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:30:39,874 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:30:39,971 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:30:39,980 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:30:39,980 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 04:30:39,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:30:39 BoogieIcfgContainer [2023-02-16 04:30:39,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:30:39,983 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-16 04:30:39,984 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-16 04:30:39,987 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-16 04:30:39,988 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:30:39,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.02 04:30:39" (1/3) ... [2023-02-16 04:30:39,989 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ddb0d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:30:39, skipping insertion in model container [2023-02-16 04:30:39,990 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:30:39,990 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:30:39" (2/3) ... [2023-02-16 04:30:39,990 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ddb0d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:30:39, skipping insertion in model container [2023-02-16 04:30:39,990 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:30:39,991 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:30:39" (3/3) ... [2023-02-16 04:30:39,992 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-02-16 04:30:40,086 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-16 04:30:40,087 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-16 04:30:40,087 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-16 04:30:40,087 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-16 04:30:40,087 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-16 04:30:40,087 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-16 04:30:40,088 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-16 04:30:40,088 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-16 04:30:40,092 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) [2023-02-16 04:30:40,115 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-16 04:30:40,116 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:40,116 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:40,120 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:30:40,121 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-16 04:30:40,121 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-16 04:30:40,121 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) [2023-02-16 04:30:40,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-16 04:30:40,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:40,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:40,123 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:30:40,123 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-16 04:30:40,128 INFO L748 eck$LassoCheckResult]: Stem: 9#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 5#L18-2true [2023-02-16 04:30:40,129 INFO L750 eck$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 [2023-02-16 04:30:40,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:40,134 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-16 04:30:40,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:40,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383054896] [2023-02-16 04:30:40,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:40,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:40,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:40,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:40,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:40,225 INFO L85 PathProgramCache]: Analyzing trace with hash 41292, now seen corresponding path program 1 times [2023-02-16 04:30:40,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:40,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93481252] [2023-02-16 04:30:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:40,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:40,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:40,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:40,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:40,249 INFO L85 PathProgramCache]: Analyzing trace with hash 28700234, now seen corresponding path program 1 times [2023-02-16 04:30:40,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:40,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671377526] [2023-02-16 04:30:40,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:40,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:40,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:40,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:40,388 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:40,388 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:40,388 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:40,389 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:40,389 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:40,389 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:40,389 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:40,389 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:40,389 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2023-02-16 04:30:40,389 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:40,389 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:40,420 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:40,444 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:40,456 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:40,463 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:40,469 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:40,563 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:40,564 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:40,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:40,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:40,573 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) [2023-02-16 04:30:40,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:40,587 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:40,604 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 [2023-02-16 04:30:40,613 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:40,613 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: [] [2023-02-16 04:30:40,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-02-16 04:30:40,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:40,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:40,620 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) [2023-02-16 04:30:40,622 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 [2023-02-16 04:30:40,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:40,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:40,645 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:40,645 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: [] [2023-02-16 04:30:40,651 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 [2023-02-16 04:30:40,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:40,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:40,653 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) [2023-02-16 04:30:40,655 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 [2023-02-16 04:30:40,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:40,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:40,669 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 [2023-02-16 04:30:40,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:40,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:40,671 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) [2023-02-16 04:30:40,672 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 [2023-02-16 04:30:40,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:40,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:40,697 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:40,701 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 [2023-02-16 04:30:40,701 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:40,702 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:40,702 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:40,702 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:40,702 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:40,702 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:40,702 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:40,702 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:40,702 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2023-02-16 04:30:40,702 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:40,702 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:40,704 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:40,708 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:40,711 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:40,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:40,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:40,775 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:40,779 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:40,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:40,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:40,785 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) [2023-02-16 04:30:40,791 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 [2023-02-16 04:30:40,793 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 [2023-02-16 04:30:40,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:40,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:40,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:40,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:40,805 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:40,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:40,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:40,831 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 [2023-02-16 04:30:40,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:40,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:40,833 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) [2023-02-16 04:30:40,837 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 [2023-02-16 04:30:40,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:40,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:40,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:40,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:40,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:40,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:40,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:40,871 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:40,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:40,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:40,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:40,878 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) [2023-02-16 04:30:40,880 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 [2023-02-16 04:30:40,882 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 [2023-02-16 04:30:40,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:40,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:40,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:40,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:40,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:40,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:40,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:40,892 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:40,896 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:40,896 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:30:40,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:40,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:40,933 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) [2023-02-16 04:30:40,935 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 [2023-02-16 04:30:40,937 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:40,937 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:40,937 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:40,938 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 [] [2023-02-16 04:30:40,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:40,947 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:40,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:40,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:40,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:41,000 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:41,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:41,064 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 [2023-02-16 04:30:41,066 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) [2023-02-16 04:30:41,102 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. [2023-02-16 04:30:41,105 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 [2023-02-16 04:30:41,109 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) [2023-02-16 04:30:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2023-02-16 04:30:41,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-16 04:30:41,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:41,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-16 04:30:41,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:41,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-16 04:30:41,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:41,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 55 transitions. [2023-02-16 04:30:41,116 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-16 04:30:41,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 15 states and 21 transitions. [2023-02-16 04:30:41,120 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-16 04:30:41,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-16 04:30:41,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2023-02-16 04:30:41,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:41,121 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-16 04:30:41,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2023-02-16 04:30:41,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-16 04:30:41,140 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) [2023-02-16 04:30:41,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2023-02-16 04:30:41,141 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-16 04:30:41,141 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-16 04:30:41,141 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-16 04:30:41,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2023-02-16 04:30:41,142 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-16 04:30:41,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:41,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:41,143 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-16 04:30:41,143 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-16 04:30:41,143 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 [2023-02-16 04:30:41,143 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 [2023-02-16 04:30:41,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:41,144 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-02-16 04:30:41,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:41,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389050515] [2023-02-16 04:30:41,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:41,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:41,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:41,157 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2023-02-16 04:30:41,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:41,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792838942] [2023-02-16 04:30:41,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:41,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,163 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:41,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:41,172 INFO L85 PathProgramCache]: Analyzing trace with hash 889692614, now seen corresponding path program 2 times [2023-02-16 04:30:41,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:41,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464965733] [2023-02-16 04:30:41,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:41,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:41,213 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:41,213 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:41,213 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:41,213 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:41,214 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:41,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:41,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:41,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2023-02-16 04:30:41,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:41,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:41,219 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,222 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,232 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,269 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:41,269 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:41,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:41,271 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) [2023-02-16 04:30:41,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:41,288 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:41,303 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 [2023-02-16 04:30:41,304 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:41,305 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: [] [2023-02-16 04:30:41,313 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 [2023-02-16 04:30:41,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:41,315 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) [2023-02-16 04:30:41,318 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 [2023-02-16 04:30:41,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:41,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:41,352 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 [2023-02-16 04:30:41,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:41,353 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) [2023-02-16 04:30:41,355 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 [2023-02-16 04:30:41,357 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:41,357 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:41,471 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:41,475 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 [2023-02-16 04:30:41,476 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:41,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:41,476 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:41,476 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:41,476 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:41,476 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,476 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:41,476 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:41,477 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2023-02-16 04:30:41,477 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:41,477 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:41,478 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,492 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,495 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,540 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:41,541 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:41,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:41,545 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) [2023-02-16 04:30:41,558 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 [2023-02-16 04:30:41,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:41,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:41,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:41,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:41,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:41,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:41,578 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 [2023-02-16 04:30:41,588 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:41,594 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 [2023-02-16 04:30:41,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:41,596 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) [2023-02-16 04:30:41,598 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 [2023-02-16 04:30:41,600 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 [2023-02-16 04:30:41,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:41,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:41,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:41,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:41,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:41,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:41,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:41,625 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:41,628 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:41,628 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:30:41,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:41,634 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) [2023-02-16 04:30:41,636 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 [2023-02-16 04:30:41,637 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:41,637 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:41,637 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:41,638 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 [] [2023-02-16 04:30:41,644 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 [2023-02-16 04:30:41,646 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:41,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:41,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:41,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:41,678 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:41,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:41,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:41,679 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 [2023-02-16 04:30:41,680 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) [2023-02-16 04:30:41,701 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. [2023-02-16 04:30:41,701 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 [2023-02-16 04:30:41,703 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) [2023-02-16 04:30:41,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2023-02-16 04:30:41,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-16 04:30:41,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:41,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 1 letters. [2023-02-16 04:30:41,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:41,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-16 04:30:41,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:41,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 40 transitions. [2023-02-16 04:30:41,708 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-16 04:30:41,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 27 transitions. [2023-02-16 04:30:41,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-16 04:30:41,710 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-16 04:30:41,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 27 transitions. [2023-02-16 04:30:41,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:41,710 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 27 transitions. [2023-02-16 04:30:41,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 27 transitions. [2023-02-16 04:30:41,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2023-02-16 04:30:41,712 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) [2023-02-16 04:30:41,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2023-02-16 04:30:41,712 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 25 transitions. [2023-02-16 04:30:41,712 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2023-02-16 04:30:41,713 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-16 04:30:41,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 25 transitions. [2023-02-16 04:30:41,713 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-16 04:30:41,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:41,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:41,715 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-02-16 04:30:41,715 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-02-16 04:30:41,716 INFO L748 eck$LassoCheckResult]: Stem: 181#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 182#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 184#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 176#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 186#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 185#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 178#L20-3 [2023-02-16 04:30:41,716 INFO L750 eck$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 [2023-02-16 04:30:41,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:41,716 INFO L85 PathProgramCache]: Analyzing trace with hash 889692612, now seen corresponding path program 1 times [2023-02-16 04:30:41,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:41,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854808066] [2023-02-16 04:30:41,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:41,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:41,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:41,730 INFO L85 PathProgramCache]: Analyzing trace with hash 54498765, now seen corresponding path program 1 times [2023-02-16 04:30:41,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:41,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932443381] [2023-02-16 04:30:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:41,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,741 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:41,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:41,750 INFO L85 PathProgramCache]: Analyzing trace with hash -476736022, now seen corresponding path program 1 times [2023-02-16 04:30:41,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:41,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829366145] [2023-02-16 04:30:41,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:41,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:41,782 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:41,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:41,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-16 04:30:41,841 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:41,841 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:41,841 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:41,841 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:41,841 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:41,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,842 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:41,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:41,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2023-02-16 04:30:41,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:41,842 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:41,844 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,847 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,858 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,863 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:41,928 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:41,928 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:41,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:41,934 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) [2023-02-16 04:30:41,936 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 [2023-02-16 04:30:41,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:41,938 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:41,961 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:41,961 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=4} Honda state: {ULTIMATE.start_main_#t~nondet1#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:41,966 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 [2023-02-16 04:30:41,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:41,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:41,969 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) [2023-02-16 04:30:41,973 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 [2023-02-16 04:30:41,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:41,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:41,995 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:41,995 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: [] [2023-02-16 04:30:42,005 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 [2023-02-16 04:30:42,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,007 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) [2023-02-16 04:30:42,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:42,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:42,029 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 [2023-02-16 04:30:42,048 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 [2023-02-16 04:30:42,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,050 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) [2023-02-16 04:30:42,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:42,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:42,109 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 [2023-02-16 04:30:42,187 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:42,195 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 [2023-02-16 04:30:42,195 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:42,195 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:42,195 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:42,195 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:42,195 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:42,195 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,195 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:42,196 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:42,196 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2023-02-16 04:30:42,196 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:42,196 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:42,197 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,200 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,210 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,215 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,301 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:42,302 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:42,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,303 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) [2023-02-16 04:30:42,318 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 [2023-02-16 04:30:42,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:42,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:42,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:42,326 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-16 04:30:42,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:42,327 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-16 04:30:42,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:42,329 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 [2023-02-16 04:30:42,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:42,345 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 [2023-02-16 04:30:42,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,347 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) [2023-02-16 04:30:42,349 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 [2023-02-16 04:30:42,351 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 [2023-02-16 04:30:42,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:42,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:42,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:42,360 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-16 04:30:42,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:42,362 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-16 04:30:42,362 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:42,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:42,379 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:42,380 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:30:42,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,381 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) [2023-02-16 04:30:42,384 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 [2023-02-16 04:30:42,385 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:42,385 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:42,386 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:42,386 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 [] [2023-02-16 04:30:42,389 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 [2023-02-16 04:30:42,390 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:42,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:42,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:42,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:42,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:42,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:42,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:42,488 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 [2023-02-16 04:30:42,488 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) [2023-02-16 04:30:42,520 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. [2023-02-16 04:30:42,521 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 [2023-02-16 04:30:42,522 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) [2023-02-16 04:30:42,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2023-02-16 04:30:42,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 5 letters. [2023-02-16 04:30:42,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:42,524 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 11 letters. Loop has 5 letters. [2023-02-16 04:30:42,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:42,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 6 letters. Loop has 10 letters. [2023-02-16 04:30:42,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:42,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 69 transitions. [2023-02-16 04:30:42,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-16 04:30:42,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 33 states and 47 transitions. [2023-02-16 04:30:42,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2023-02-16 04:30:42,533 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2023-02-16 04:30:42,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 47 transitions. [2023-02-16 04:30:42,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:42,534 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 47 transitions. [2023-02-16 04:30:42,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 47 transitions. [2023-02-16 04:30:42,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2023-02-16 04:30:42,538 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) [2023-02-16 04:30:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2023-02-16 04:30:42,541 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 45 transitions. [2023-02-16 04:30:42,541 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 45 transitions. [2023-02-16 04:30:42,541 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-16 04:30:42,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 45 transitions. [2023-02-16 04:30:42,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-16 04:30:42,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:42,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:42,545 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-02-16 04:30:42,546 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-16 04:30:42,546 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 [2023-02-16 04:30:42,546 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 [2023-02-16 04:30:42,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:42,547 INFO L85 PathProgramCache]: Analyzing trace with hash -476736020, now seen corresponding path program 2 times [2023-02-16 04:30:42,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:42,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295642796] [2023-02-16 04:30:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:42,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:42,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:42,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:42,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:42,579 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 2 times [2023-02-16 04:30:42,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:42,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904804058] [2023-02-16 04:30:42,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:42,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:42,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:42,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:42,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1893914709, now seen corresponding path program 3 times [2023-02-16 04:30:42,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:42,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778089283] [2023-02-16 04:30:42,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:42,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:42,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:42,603 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:42,617 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:42,617 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:42,617 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:42,617 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:42,618 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:42,618 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,618 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:42,618 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:42,618 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2023-02-16 04:30:42,618 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:42,618 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:42,619 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,622 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,624 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,661 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:42,662 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:42,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,663 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) [2023-02-16 04:30:42,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:42,674 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:42,687 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 [2023-02-16 04:30:42,696 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:42,696 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: [] [2023-02-16 04:30:42,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:42,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,703 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) [2023-02-16 04:30:42,705 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 [2023-02-16 04:30:42,707 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:42,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:42,725 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:42,725 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: [] [2023-02-16 04:30:42,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:42,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,737 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) [2023-02-16 04:30:42,741 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 [2023-02-16 04:30:42,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:42,743 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:42,764 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:42,765 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=4} Honda state: {ULTIMATE.start_main_#t~nondet2#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:42,771 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 [2023-02-16 04:30:42,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,773 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) [2023-02-16 04:30:42,777 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:42,777 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:42,786 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 [2023-02-16 04:30:42,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-16 04:30:42,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,803 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) [2023-02-16 04:30:42,804 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 [2023-02-16 04:30:42,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:42,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:42,907 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:42,911 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 [2023-02-16 04:30:42,911 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:42,911 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:42,911 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:42,911 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:42,911 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:42,911 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:42,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:42,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2023-02-16 04:30:42,912 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:42,912 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:42,913 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,919 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,921 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:42,973 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:42,973 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:42,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:42,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:42,977 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) [2023-02-16 04:30:42,980 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 [2023-02-16 04:30:42,982 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 [2023-02-16 04:30:42,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:42,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:42,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:42,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:42,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:42,993 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:43,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:43,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-16 04:30:43,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,007 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) [2023-02-16 04:30:43,009 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 [2023-02-16 04:30:43,010 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 [2023-02-16 04:30:43,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:43,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:43,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:43,018 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-16 04:30:43,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:43,018 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-16 04:30:43,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:43,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:43,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:43,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,054 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) [2023-02-16 04:30:43,069 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 [2023-02-16 04:30:43,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:43,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:43,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:43,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:43,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:43,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:43,083 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 [2023-02-16 04:30:43,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:43,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:43,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,105 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) [2023-02-16 04:30:43,108 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 [2023-02-16 04:30:43,110 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 [2023-02-16 04:30:43,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:43,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:43,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:43,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:43,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:43,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:43,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:43,132 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:43,141 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:43,141 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:30:43,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,146 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) [2023-02-16 04:30:43,148 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 [2023-02-16 04:30:43,150 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:43,150 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:43,150 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:43,150 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 [] [2023-02-16 04:30:43,157 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 [2023-02-16 04:30:43,158 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:43,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:43,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:43,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:43,203 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:43,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:43,214 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 [2023-02-16 04:30:43,215 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) [2023-02-16 04:30:43,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2023-02-16 04:30:43,229 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. [2023-02-16 04:30:43,229 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 [2023-02-16 04:30:43,230 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) [2023-02-16 04:30:43,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2023-02-16 04:30:43,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-16 04:30:43,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:43,230 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:43,238 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 [2023-02-16 04:30:43,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:43,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:43,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:43,262 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:43,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:43,263 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 [2023-02-16 04:30:43,264 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) [2023-02-16 04:30:43,271 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. [2023-02-16 04:30:43,271 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 [2023-02-16 04:30:43,272 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) [2023-02-16 04:30:43,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2023-02-16 04:30:43,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-16 04:30:43,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:43,273 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:43,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:43,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:43,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:43,302 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:43,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:43,304 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 [2023-02-16 04:30:43,304 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) [2023-02-16 04:30:43,313 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. [2023-02-16 04:30:43,314 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 [2023-02-16 04:30:43,314 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) [2023-02-16 04:30:43,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2023-02-16 04:30:43,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 11 letters. Loop has 1 letters. [2023-02-16 04:30:43,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:43,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 12 letters. Loop has 1 letters. [2023-02-16 04:30:43,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:43,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 11 letters. Loop has 2 letters. [2023-02-16 04:30:43,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:43,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 71 transitions. [2023-02-16 04:30:43,317 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-16 04:30:43,317 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 36 states and 51 transitions. [2023-02-16 04:30:43,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-02-16 04:30:43,318 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-02-16 04:30:43,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 51 transitions. [2023-02-16 04:30:43,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:43,318 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 51 transitions. [2023-02-16 04:30:43,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 51 transitions. [2023-02-16 04:30:43,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2023-02-16 04:30:43,320 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) [2023-02-16 04:30:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2023-02-16 04:30:43,321 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 42 transitions. [2023-02-16 04:30:43,321 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2023-02-16 04:30:43,321 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-16 04:30:43,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 42 transitions. [2023-02-16 04:30:43,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-16 04:30:43,322 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:43,322 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:43,322 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-02-16 04:30:43,323 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-02-16 04:30:43,323 INFO L748 eck$LassoCheckResult]: Stem: 595#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 596#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 584#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 586#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 599#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 594#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 582#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 583#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 597#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 589#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 590#L20-2 [2023-02-16 04:30:43,323 INFO L750 eck$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 [2023-02-16 04:30:43,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:43,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1041382945, now seen corresponding path program 4 times [2023-02-16 04:30:43,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:43,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493117946] [2023-02-16 04:30:43,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:43,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:43,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:43,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:30:43,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493117946] [2023-02-16 04:30:43,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493117946] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:30:43,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:30:43,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:30:43,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64295077] [2023-02-16 04:30:43,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:30:43,376 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-16 04:30:43,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:43,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1514585468, now seen corresponding path program 1 times [2023-02-16 04:30:43,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:43,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359616663] [2023-02-16 04:30:43,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:43,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:43,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:43,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:43,432 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:43,432 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:43,432 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:43,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:43,433 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:43,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:43,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:43,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2023-02-16 04:30:43,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:43,433 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:43,434 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,444 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,453 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,455 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,549 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:43,549 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:43,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,551 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) [2023-02-16 04:30:43,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:43,565 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:43,581 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 [2023-02-16 04:30:43,582 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:43,582 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: [] [2023-02-16 04:30:43,588 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 [2023-02-16 04:30:43,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,590 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) [2023-02-16 04:30:43,591 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 [2023-02-16 04:30:43,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:43,600 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:43,600 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {} Honda state: {} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:43,611 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 [2023-02-16 04:30:43,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,612 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) [2023-02-16 04:30:43,614 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 [2023-02-16 04:30:43,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:43,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:43,637 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:43,637 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=4} Honda state: {ULTIMATE.start_main_#t~nondet1#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:30:43,647 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 [2023-02-16 04:30:43,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,649 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) [2023-02-16 04:30:43,653 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 [2023-02-16 04:30:43,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:43,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:43,710 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:43,711 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: [] [2023-02-16 04:30:43,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-02-16 04:30:43,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,715 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) [2023-02-16 04:30:43,716 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 [2023-02-16 04:30:43,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:43,719 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:43,730 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:43,731 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: [] [2023-02-16 04:30:43,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-02-16 04:30:43,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,735 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) [2023-02-16 04:30:43,736 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 [2023-02-16 04:30:43,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:43,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:43,749 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 [2023-02-16 04:30:43,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,750 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) [2023-02-16 04:30:43,756 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 [2023-02-16 04:30:43,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:43,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:43,816 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:43,820 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 [2023-02-16 04:30:43,820 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:43,820 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:43,820 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:43,820 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:43,820 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:43,820 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,821 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:43,821 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:43,821 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2023-02-16 04:30:43,821 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:43,821 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:43,822 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,840 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,843 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,845 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,848 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,850 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:43,928 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:43,928 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:43,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,934 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) [2023-02-16 04:30:43,937 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 [2023-02-16 04:30:43,938 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 [2023-02-16 04:30:43,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:43,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:43,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:43,944 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-16 04:30:43,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:43,945 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-16 04:30:43,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:43,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:43,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2023-02-16 04:30:43,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,961 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) [2023-02-16 04:30:43,962 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 [2023-02-16 04:30:43,964 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 [2023-02-16 04:30:43,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:43,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:43,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:43,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:43,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:43,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:43,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:43,977 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 [2023-02-16 04:30:43,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:43,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:43,978 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) [2023-02-16 04:30:43,982 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 [2023-02-16 04:30:43,984 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 [2023-02-16 04:30:43,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:43,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:43,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:43,990 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-16 04:30:43,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:43,991 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-16 04:30:43,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:43,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:43,999 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 [2023-02-16 04:30:44,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,002 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) [2023-02-16 04:30:44,008 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 [2023-02-16 04:30:44,008 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 [2023-02-16 04:30:44,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:44,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:44,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:44,015 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-16 04:30:44,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:44,016 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-16 04:30:44,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:44,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:44,027 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 [2023-02-16 04:30:44,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,028 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) [2023-02-16 04:30:44,033 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 [2023-02-16 04:30:44,033 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 [2023-02-16 04:30:44,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:44,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:44,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:44,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:44,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:44,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:44,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:44,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:44,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,048 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) [2023-02-16 04:30:44,050 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 [2023-02-16 04:30:44,052 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 [2023-02-16 04:30:44,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:44,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:44,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:44,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:44,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:44,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:44,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:44,060 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:44,062 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-16 04:30:44,062 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:30:44,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,063 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) [2023-02-16 04:30:44,066 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 [2023-02-16 04:30:44,067 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:44,067 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:44,067 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:44,067 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 [] [2023-02-16 04:30:44,070 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 [2023-02-16 04:30:44,070 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:44,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:44,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:44,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:44,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:44,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:44,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:44,142 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 [2023-02-16 04:30:44,143 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) [2023-02-16 04:30:44,156 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. [2023-02-16 04:30:44,157 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 [2023-02-16 04:30:44,158 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) [2023-02-16 04:30:44,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2023-02-16 04:30:44,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 10 letters. Loop has 6 letters. [2023-02-16 04:30:44,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:44,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 6 letters. [2023-02-16 04:30:44,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:44,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 10 letters. Loop has 12 letters. [2023-02-16 04:30:44,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:44,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 98 transitions. [2023-02-16 04:30:44,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:30:44,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 41 states and 59 transitions. [2023-02-16 04:30:44,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2023-02-16 04:30:44,162 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-16 04:30:44,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 59 transitions. [2023-02-16 04:30:44,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:44,162 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 59 transitions. [2023-02-16 04:30:44,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 59 transitions. [2023-02-16 04:30:44,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2023-02-16 04:30:44,164 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) [2023-02-16 04:30:44,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2023-02-16 04:30:44,165 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 49 transitions. [2023-02-16 04:30:44,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:30:44,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:30:44,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:30:44,168 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) [2023-02-16 04:30:44,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:30:44,182 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2023-02-16 04:30:44,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2023-02-16 04:30:44,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:30:44,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 24 states and 32 transitions. [2023-02-16 04:30:44,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-16 04:30:44,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-16 04:30:44,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2023-02-16 04:30:44,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:44,189 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2023-02-16 04:30:44,189 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 [2023-02-16 04:30:44,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2023-02-16 04:30:44,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-16 04:30:44,191 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) [2023-02-16 04:30:44,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2023-02-16 04:30:44,192 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2023-02-16 04:30:44,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:30:44,195 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 32 transitions. [2023-02-16 04:30:44,195 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-16 04:30:44,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 32 transitions. [2023-02-16 04:30:44,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:30:44,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:44,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:44,198 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1] [2023-02-16 04:30:44,198 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-16 04:30:44,199 INFO L748 eck$LassoCheckResult]: Stem: 823#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 824#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 814#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 815#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 820#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 821#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 818#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 819#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 816#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 817#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 825#L20-2 assume !!(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := 1 + main_~y~0#1; 827#L20-2 assume !(main_~y~0#1 <= main_~m~0#1 && 0 != main_#t~nondet2#1);havoc main_#t~nondet2#1; 831#L20-3 main_~x~0#1 := main_~x~0#1 - 1; 830#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 829#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0); 826#L19 assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 810#L19-2 [2023-02-16 04:30:44,199 INFO L750 eck$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 [2023-02-16 04:30:44,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:44,199 INFO L85 PathProgramCache]: Analyzing trace with hash -410261761, now seen corresponding path program 1 times [2023-02-16 04:30:44,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:44,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698229032] [2023-02-16 04:30:44,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:44,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:44,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:44,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:44,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:44,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:44,229 INFO L85 PathProgramCache]: Analyzing trace with hash 59952, now seen corresponding path program 2 times [2023-02-16 04:30:44,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:44,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971676329] [2023-02-16 04:30:44,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:44,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:44,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:44,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:44,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:44,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:44,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1368832626, now seen corresponding path program 2 times [2023-02-16 04:30:44,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:44,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356054194] [2023-02-16 04:30:44,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:44,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:44,304 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-16 04:30:44,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:30:44,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356054194] [2023-02-16 04:30:44,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356054194] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:30:44,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990004727] [2023-02-16 04:30:44,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:30:44,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:30:44,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,307 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) [2023-02-16 04:30:44,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-02-16 04:30:44,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:30:44,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:30:44,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 04:30:44,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-16 04:30:44,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:30:44,392 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-16 04:30:44,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990004727] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:30:44,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:30:44,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-02-16 04:30:44,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283743790] [2023-02-16 04:30:44,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:30:44,416 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:44,416 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:44,416 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:44,416 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:44,416 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:44,416 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,417 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:44,417 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:44,417 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2023-02-16 04:30:44,417 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:44,417 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:44,418 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:44,420 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:44,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:44,429 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:44,432 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:44,466 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:44,466 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:44,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,468 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) [2023-02-16 04:30:44,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:44,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:44,486 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 [2023-02-16 04:30:44,493 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:44,493 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: [] [2023-02-16 04:30:44,497 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 [2023-02-16 04:30:44,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,499 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) [2023-02-16 04:30:44,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:44,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:44,517 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 [2023-02-16 04:30:44,531 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:44,531 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: [] [2023-02-16 04:30:44,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:44,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,537 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) [2023-02-16 04:30:44,539 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 [2023-02-16 04:30:44,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:44,541 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:44,562 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:44,562 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: [] [2023-02-16 04:30:44,567 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 [2023-02-16 04:30:44,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,569 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) [2023-02-16 04:30:44,570 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 [2023-02-16 04:30:44,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:44,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:44,579 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:44,580 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: [] [2023-02-16 04:30:44,582 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 [2023-02-16 04:30:44,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,585 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) [2023-02-16 04:30:44,586 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 [2023-02-16 04:30:44,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:44,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:44,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2023-02-16 04:30:44,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,599 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) [2023-02-16 04:30:44,600 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 [2023-02-16 04:30:44,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:44,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:44,632 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:44,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-02-16 04:30:44,636 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:44,636 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:44,636 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:44,636 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:44,636 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:44,636 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,636 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:44,636 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:44,636 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2023-02-16 04:30:44,636 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:44,636 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:44,637 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:44,640 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:44,646 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:44,648 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:44,650 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:44,685 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:44,686 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:44,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,687 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) [2023-02-16 04:30:44,689 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 [2023-02-16 04:30:44,691 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 [2023-02-16 04:30:44,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:44,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:44,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:44,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:44,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:44,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:44,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:44,698 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:44,701 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 [2023-02-16 04:30:44,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,702 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) [2023-02-16 04:30:44,703 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 [2023-02-16 04:30:44,705 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 [2023-02-16 04:30:44,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:44,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:44,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:44,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:44,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:44,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:44,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:44,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-02-16 04:30:44,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,720 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) [2023-02-16 04:30:44,722 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 [2023-02-16 04:30:44,724 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 [2023-02-16 04:30:44,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:44,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:44,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:44,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:44,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:44,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:44,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:44,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:44,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,762 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) [2023-02-16 04:30:44,765 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 [2023-02-16 04:30:44,766 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 [2023-02-16 04:30:44,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:44,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:44,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:44,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:44,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:44,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:44,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:44,785 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:44,788 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 [2023-02-16 04:30:44,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,789 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) [2023-02-16 04:30:44,791 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 [2023-02-16 04:30:44,792 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 [2023-02-16 04:30:44,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:44,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:44,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:44,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:44,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:44,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:44,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:44,801 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:44,803 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:44,803 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:30:44,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:44,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:44,804 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) [2023-02-16 04:30:44,806 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 [2023-02-16 04:30:44,807 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:44,807 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:44,808 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:44,808 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 [] [2023-02-16 04:30:44,811 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 [2023-02-16 04:30:44,813 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:44,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:44,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:44,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:44,858 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:44,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:44,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:44,878 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 [2023-02-16 04:30:44,878 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) [2023-02-16 04:30:44,900 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. [2023-02-16 04:30:44,900 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 [2023-02-16 04:30:44,901 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) [2023-02-16 04:30:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-16 04:30:44,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 3 letters. [2023-02-16 04:30:44,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:44,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 19 letters. Loop has 3 letters. [2023-02-16 04:30:44,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:44,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 6 letters. [2023-02-16 04:30:44,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:44,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 88 transitions. [2023-02-16 04:30:44,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:30:44,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 46 states and 62 transitions. [2023-02-16 04:30:44,904 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-16 04:30:44,904 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-16 04:30:44,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 62 transitions. [2023-02-16 04:30:44,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:44,904 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 62 transitions. [2023-02-16 04:30:44,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 62 transitions. [2023-02-16 04:30:44,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2023-02-16 04:30:44,906 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) [2023-02-16 04:30:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions. [2023-02-16 04:30:44,907 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 47 transitions. [2023-02-16 04:30:44,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:30:44,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:30:44,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:30:44,908 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) [2023-02-16 04:30:44,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:30:44,924 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2023-02-16 04:30:44,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 69 transitions. [2023-02-16 04:30:44,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:30:44,926 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 46 states and 59 transitions. [2023-02-16 04:30:44,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-16 04:30:44,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-16 04:30:44,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 59 transitions. [2023-02-16 04:30:44,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:44,926 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 59 transitions. [2023-02-16 04:30:44,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 59 transitions. [2023-02-16 04:30:44,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2023-02-16 04:30:44,929 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) [2023-02-16 04:30:44,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2023-02-16 04:30:44,929 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 54 transitions. [2023-02-16 04:30:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 04:30:44,930 INFO L428 stractBuchiCegarLoop]: Abstraction has 41 states and 54 transitions. [2023-02-16 04:30:44,930 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-16 04:30:44,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 54 transitions. [2023-02-16 04:30:44,931 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:30:44,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:44,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:44,932 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 2, 2, 2, 2, 1, 1] [2023-02-16 04:30:44,932 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-16 04:30:44,932 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 [2023-02-16 04:30:44,932 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 [2023-02-16 04:30:44,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:44,933 INFO L85 PathProgramCache]: Analyzing trace with hash 33262129, now seen corresponding path program 3 times [2023-02-16 04:30:44,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:44,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369265593] [2023-02-16 04:30:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:44,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:44,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:44,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:44,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:44,963 INFO L85 PathProgramCache]: Analyzing trace with hash 59952, now seen corresponding path program 3 times [2023-02-16 04:30:44,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:44,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951634770] [2023-02-16 04:30:44,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:44,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:44,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:44,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:44,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:44,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1225330176, now seen corresponding path program 4 times [2023-02-16 04:30:44,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:44,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529964318] [2023-02-16 04:30:44,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:44,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:45,039 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 04:30:45,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:30:45,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529964318] [2023-02-16 04:30:45,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529964318] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:30:45,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004889005] [2023-02-16 04:30:45,040 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 04:30:45,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:30:45,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,045 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) [2023-02-16 04:30:45,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-02-16 04:30:45,074 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 04:30:45,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:30:45,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 04:30:45,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 04:30:45,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:30:45,158 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 04:30:45,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004889005] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:30:45,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:30:45,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2023-02-16 04:30:45,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586017434] [2023-02-16 04:30:45,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:30:45,179 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:45,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:45,180 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:45,180 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:45,180 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:45,180 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:45,180 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:45,180 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2023-02-16 04:30:45,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:45,180 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:45,181 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,184 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,186 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,228 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:45,229 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:45,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,232 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) [2023-02-16 04:30:45,233 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 [2023-02-16 04:30:45,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:45,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:45,254 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:45,254 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: [] [2023-02-16 04:30:45,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:45,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,258 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) [2023-02-16 04:30:45,266 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 [2023-02-16 04:30:45,268 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 [2023-02-16 04:30:45,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:45,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:45,291 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:45,291 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: [] [2023-02-16 04:30:45,294 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 [2023-02-16 04:30:45,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,296 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) [2023-02-16 04:30:45,303 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 [2023-02-16 04:30:45,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:45,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:45,313 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 [2023-02-16 04:30:45,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,314 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) [2023-02-16 04:30:45,315 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 [2023-02-16 04:30:45,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:45,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:45,347 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:45,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2023-02-16 04:30:45,350 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:45,350 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:45,350 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:45,350 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:45,350 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:45,350 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,350 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:45,350 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:45,350 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2023-02-16 04:30:45,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:45,350 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:45,351 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,359 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,363 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,364 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,370 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,413 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:45,413 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:45,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,415 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) [2023-02-16 04:30:45,417 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 [2023-02-16 04:30:45,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:30:45,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:45,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:45,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:45,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:45,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:45,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:45,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:45,425 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:45,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:45,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,429 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) [2023-02-16 04:30:45,432 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 [2023-02-16 04:30:45,436 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 [2023-02-16 04:30:45,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:45,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:45,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:45,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:45,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:45,443 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:45,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:45,444 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:45,446 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:30:45,446 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:30:45,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,447 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) [2023-02-16 04:30:45,449 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 [2023-02-16 04:30:45,450 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:45,451 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:45,451 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:45,451 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 [] [2023-02-16 04:30:45,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:45,455 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:45,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:45,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:45,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:45,501 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:45,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:45,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:45,519 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 [2023-02-16 04:30:45,519 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) [2023-02-16 04:30:45,538 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. [2023-02-16 04:30:45,539 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 [2023-02-16 04:30:45,539 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) [2023-02-16 04:30:45,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-16 04:30:45,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 3 letters. [2023-02-16 04:30:45,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:45,539 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:45,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:45,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:45,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:45,584 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:45,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:45,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:45,604 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 [2023-02-16 04:30:45,604 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) [2023-02-16 04:30:45,635 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. [2023-02-16 04:30:45,636 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 [2023-02-16 04:30:45,637 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) [2023-02-16 04:30:45,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2023-02-16 04:30:45,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 20 letters. Loop has 3 letters. [2023-02-16 04:30:45,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:45,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 23 letters. Loop has 3 letters. [2023-02-16 04:30:45,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:45,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 20 letters. Loop has 6 letters. [2023-02-16 04:30:45,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:45,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 98 transitions. [2023-02-16 04:30:45,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:30:45,640 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 69 states and 90 transitions. [2023-02-16 04:30:45,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-16 04:30:45,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-16 04:30:45,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 90 transitions. [2023-02-16 04:30:45,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:45,641 INFO L218 hiAutomatonCegarLoop]: Abstraction has 69 states and 90 transitions. [2023-02-16 04:30:45,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 90 transitions. [2023-02-16 04:30:45,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2023-02-16 04:30:45,656 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) [2023-02-16 04:30:45,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2023-02-16 04:30:45,656 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 81 transitions. [2023-02-16 04:30:45,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:30:45,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 04:30:45,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:30:45,657 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) [2023-02-16 04:30:45,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:30:45,676 INFO L93 Difference]: Finished difference Result 150 states and 189 transitions. [2023-02-16 04:30:45,677 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 189 transitions. [2023-02-16 04:30:45,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:30:45,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 108 states and 138 transitions. [2023-02-16 04:30:45,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-16 04:30:45,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-16 04:30:45,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 138 transitions. [2023-02-16 04:30:45,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:30:45,679 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 138 transitions. [2023-02-16 04:30:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 138 transitions. [2023-02-16 04:30:45,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 84. [2023-02-16 04:30:45,683 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) [2023-02-16 04:30:45,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 112 transitions. [2023-02-16 04:30:45,685 INFO L240 hiAutomatonCegarLoop]: Abstraction has 84 states and 112 transitions. [2023-02-16 04:30:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:30:45,687 INFO L428 stractBuchiCegarLoop]: Abstraction has 84 states and 112 transitions. [2023-02-16 04:30:45,687 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-02-16 04:30:45,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states and 112 transitions. [2023-02-16 04:30:45,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-16 04:30:45,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:30:45,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:30:45,688 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 3, 2, 2, 2, 2, 1, 1] [2023-02-16 04:30:45,688 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-16 04:30:45,688 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 [2023-02-16 04:30:45,688 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 [2023-02-16 04:30:45,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:45,689 INFO L85 PathProgramCache]: Analyzing trace with hash -743097903, now seen corresponding path program 5 times [2023-02-16 04:30:45,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:45,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389755732] [2023-02-16 04:30:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:45,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:45,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:45,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:45,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:45,703 INFO L85 PathProgramCache]: Analyzing trace with hash 59952, now seen corresponding path program 4 times [2023-02-16 04:30:45,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:45,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103556333] [2023-02-16 04:30:45,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:45,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:45,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:45,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:45,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:45,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1368154528, now seen corresponding path program 6 times [2023-02-16 04:30:45,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:30:45,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350822336] [2023-02-16 04:30:45,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:30:45,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:30:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:45,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:30:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:30:45,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:30:45,735 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:45,735 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:45,735 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:45,735 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:45,735 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:30:45,735 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:45,736 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:45,736 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2023-02-16 04:30:45,736 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:45,736 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:45,737 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,739 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,741 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,743 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,745 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,776 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:45,776 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:30:45,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,778 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) [2023-02-16 04:30:45,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:45,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:45,798 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 [2023-02-16 04:30:45,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:45,813 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: [] [2023-02-16 04:30:45,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:45,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,818 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) [2023-02-16 04:30:45,819 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 [2023-02-16 04:30:45,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:45,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:45,828 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:45,828 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: [] [2023-02-16 04:30:45,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2023-02-16 04:30:45,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,832 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) [2023-02-16 04:30:45,834 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 [2023-02-16 04:30:45,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:45,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:45,846 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:45,846 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: [] [2023-02-16 04:30:45,848 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 [2023-02-16 04:30:45,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,850 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) [2023-02-16 04:30:45,851 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 [2023-02-16 04:30:45,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:45,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:45,864 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:30:45,864 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: [] [2023-02-16 04:30:45,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2023-02-16 04:30:45,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,868 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) [2023-02-16 04:30:45,870 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 [2023-02-16 04:30:45,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:30:45,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:45,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:45,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,881 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) [2023-02-16 04:30:45,882 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 [2023-02-16 04:30:45,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:30:45,884 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:30:45,913 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:30:45,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2023-02-16 04:30:45,916 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:30:45,916 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:30:45,916 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:30:45,916 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:30:45,917 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:30:45,917 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,917 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:30:45,917 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:30:45,917 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration8_Loop [2023-02-16 04:30:45,917 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:30:45,917 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:30:45,917 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,920 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,921 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,923 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,928 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:30:45,967 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:30:45,968 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:30:45,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:45,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:45,969 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) [2023-02-16 04:30:45,977 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 [2023-02-16 04:30:45,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:45,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:45,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:45,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:45,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:30:45,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:30:45,989 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 [2023-02-16 04:30:46,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:46,004 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 [2023-02-16 04:30:46,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:46,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:46,005 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) [2023-02-16 04:30:46,013 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 [2023-02-16 04:30:46,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:46,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:46,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:46,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:46,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:46,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:46,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:46,023 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 [2023-02-16 04:30:46,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:46,036 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 [2023-02-16 04:30:46,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:46,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:46,037 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) [2023-02-16 04:30:46,039 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 [2023-02-16 04:30:46,040 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 [2023-02-16 04:30:46,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:46,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:46,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:46,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:46,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:46,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:46,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:46,047 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:30:46,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2023-02-16 04:30:46,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:46,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:46,051 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) [2023-02-16 04:30:46,052 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 [2023-02-16 04:30:46,054 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 [2023-02-16 04:30:46,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:30:46,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:30:46,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:30:46,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:30:46,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:30:46,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:30:46,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:30:46,062 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:30:46,063 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-16 04:30:46,063 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:30:46,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:30:46,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:30:46,066 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) [2023-02-16 04:30:46,066 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 [2023-02-16 04:30:46,067 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:30:46,068 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:30:46,068 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:30:46,068 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 [] [2023-02-16 04:30:46,070 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 [2023-02-16 04:30:46,071 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:30:46,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:46,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:46,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:46,113 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:46,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:46,141 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 [2023-02-16 04:30:46,142 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) [2023-02-16 04:30:46,161 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. [2023-02-16 04:30:46,162 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 [2023-02-16 04:30:46,162 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) [2023-02-16 04:30:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-16 04:30:46,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 22 letters. Loop has 3 letters. [2023-02-16 04:30:46,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:46,164 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:46,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:46,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:46,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:46,220 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:46,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:46,238 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 [2023-02-16 04:30:46,238 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) [2023-02-16 04:30:46,266 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. [2023-02-16 04:30:46,267 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 [2023-02-16 04:30:46,267 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) [2023-02-16 04:30:46,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2023-02-16 04:30:46,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 22 letters. Loop has 3 letters. [2023-02-16 04:30:46,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:46,268 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:30:46,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:30:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:46,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:30:46,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:30:46,321 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:30:46,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:30:46,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:30:46,346 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 [2023-02-16 04:30:46,346 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) [2023-02-16 04:30:46,362 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. [2023-02-16 04:30:46,363 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 [2023-02-16 04:30:46,364 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) [2023-02-16 04:30:46,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-02-16 04:30:46,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 22 letters. Loop has 3 letters. [2023-02-16 04:30:46,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:46,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 25 letters. Loop has 3 letters. [2023-02-16 04:30:46,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:46,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 22 letters. Loop has 6 letters. [2023-02-16 04:30:46,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:30:46,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 188 transitions. [2023-02-16 04:30:46,367 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:30:46,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 0 states and 0 transitions. [2023-02-16 04:30:46,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-16 04:30:46,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-16 04:30:46,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-16 04:30:46,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:30:46,368 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:30:46,368 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:30:46,368 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:30:46,369 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-02-16 04:30:46,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-16 04:30:46,369 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:30:46,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-16 04:30:46,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.02 04:30:46 BoogieIcfgContainer [2023-02-16 04:30:46,377 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-16 04:30:46,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 04:30:46,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 04:30:46,378 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 04:30:46,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:30:39" (3/4) ... [2023-02-16 04:30:46,381 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-16 04:30:46,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 04:30:46,382 INFO L158 Benchmark]: Toolchain (without parser) took 6858.06ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 83.8MB in the beginning and 38.0MB in the end (delta: 45.8MB). Peak memory consumption was 74.1MB. Max. memory is 16.1GB. [2023-02-16 04:30:46,382 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory was 71.4MB in the beginning and 71.2MB in the end (delta: 102.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:30:46,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.09ms. Allocated memory is still 123.7MB. Free memory was 83.8MB in the beginning and 74.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-16 04:30:46,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.55ms. Allocated memory is still 123.7MB. Free memory was 74.4MB in the beginning and 72.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:30:46,383 INFO L158 Benchmark]: Boogie Preprocessor took 13.91ms. Allocated memory is still 123.7MB. Free memory was 72.9MB in the beginning and 72.0MB in the end (delta: 831.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:30:46,383 INFO L158 Benchmark]: RCFGBuilder took 256.25ms. Allocated memory is still 123.7MB. Free memory was 72.0MB in the beginning and 63.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:30:46,383 INFO L158 Benchmark]: BuchiAutomizer took 6393.62ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 63.2MB in the beginning and 38.0MB in the end (delta: 25.2MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2023-02-16 04:30:46,384 INFO L158 Benchmark]: Witness Printer took 3.42ms. Allocated memory is still 148.9MB. Free memory is still 38.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:30:46,385 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory was 71.4MB in the beginning and 71.2MB in the end (delta: 102.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.09ms. Allocated memory is still 123.7MB. Free memory was 83.8MB in the beginning and 74.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.55ms. Allocated memory is still 123.7MB. Free memory was 74.4MB in the beginning and 72.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.91ms. Allocated memory is still 123.7MB. Free memory was 72.9MB in the beginning and 72.0MB in the end (delta: 831.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 256.25ms. Allocated memory is still 123.7MB. Free memory was 72.0MB in the beginning and 63.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6393.62ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 63.2MB in the beginning and 38.0MB in the end (delta: 25.2MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. * Witness Printer took 3.42ms. Allocated memory is still 148.9MB. Free memory is still 38.0MB. 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 * y + 2 * m + 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 * y + 2 * m + 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 6.3s and 9 iterations. TraceHistogramMax:5. Analysis of lassos took 4.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.1s 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: 44ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 23 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-16 04:30:46,404 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 [2023-02-16 04:30:46,605 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 [2023-02-16 04:30:46,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-02-16 04:30:47,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-02-16 04:30:47,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE