./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/UpAndDown.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/UpAndDown.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 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:19:17,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:19:17,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:19:17,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:19:17,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:19:17,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:19:17,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:19:17,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:19:17,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:19:17,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:19:17,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:19:17,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:19:17,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:19:17,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:19:17,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:19:17,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:19:17,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:19:17,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:19:17,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:19:17,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:19:17,762 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:19:17,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:19:17,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:19:17,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:19:17,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:19:17,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:19:17,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:19:17,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:19:17,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:19:17,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:19:17,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:19:17,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:19:17,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:19:17,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:19:17,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:19:17,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:19:17,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:19:17,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:19:17,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:19:17,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:19:17,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:19:17,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:19:17,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:19:17,816 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:19:17,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:19:17,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:19:17,818 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:19:17,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:19:17,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:19:17,820 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:19:17,820 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:19:17,820 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:19:17,821 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:19:17,821 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:19:17,821 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:19:17,822 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:19:17,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:19:17,822 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:19:17,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:19:17,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:19:17,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:19:17,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:19:17,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:19:17,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:19:17,823 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:19:17,823 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:19:17,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:19:17,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:19:17,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:19:17,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:19:17,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:19:17,826 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:19:17,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a3ce217426a55eb46107f2cdf23c10dcc5d92a99768880786a980fae67c3971 [2022-07-23 14:19:18,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:19:18,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:19:18,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:19:18,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:19:18,098 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:19:18,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2022-07-23 14:19:18,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949841787/b7c53dba40ec4f0cba0d5c0697399d78/FLAGe30510275 [2022-07-23 14:19:18,568 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:19:18,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/UpAndDown.c [2022-07-23 14:19:18,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949841787/b7c53dba40ec4f0cba0d5c0697399d78/FLAGe30510275 [2022-07-23 14:19:19,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949841787/b7c53dba40ec4f0cba0d5c0697399d78 [2022-07-23 14:19:19,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:19:19,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:19:19,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:19:19,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:19:19,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:19:19,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5462b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19, skipping insertion in model container [2022-07-23 14:19:19,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:19:19,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:19:19,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:19:19,167 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:19:19,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:19:19,186 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:19:19,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19 WrapperNode [2022-07-23 14:19:19,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:19:19,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:19:19,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:19:19,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:19:19,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,209 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-07-23 14:19:19,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:19:19,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:19:19,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:19:19,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:19:19,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:19:19,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:19:19,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:19:19,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:19:19,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (1/1) ... [2022-07-23 14:19:19,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:19,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:19,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:19,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 14:19:19,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:19:19,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:19:19,325 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:19:19,326 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:19:19,378 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:19:19,384 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:19:19,385 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 14:19:19,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:19:19 BoogieIcfgContainer [2022-07-23 14:19:19,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:19:19,387 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:19:19,388 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:19:19,390 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:19:19,391 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:19:19,391 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:19:19" (1/3) ... [2022-07-23 14:19:19,392 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63f9a204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:19:19, skipping insertion in model container [2022-07-23 14:19:19,392 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:19:19,393 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:19" (2/3) ... [2022-07-23 14:19:19,393 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63f9a204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:19:19, skipping insertion in model container [2022-07-23 14:19:19,393 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:19:19,393 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:19:19" (3/3) ... [2022-07-23 14:19:19,395 INFO L354 chiAutomizerObserver]: Analyzing ICFG UpAndDown.c [2022-07-23 14:19:19,441 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:19:19,441 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:19:19,441 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:19:19,441 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:19:19,441 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:19:19,442 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:19:19,442 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:19:19,442 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:19:19,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:19,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-23 14:19:19,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:19,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:19,464 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:19:19,464 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:19:19,464 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:19:19,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:19,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-23 14:19:19,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:19,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:19,466 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:19:19,466 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:19:19,470 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 5#L18-1true [2022-07-23 14:19:19,471 INFO L754 eck$LassoCheckResult]: Loop: 5#L18-1true assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 10#L12true assume !(10 == main_~i~0#1); 2#L12-2true assume 0 == main_~i~0#1;main_~up~0#1 := 1; 7#L15-1true assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 5#L18-1true [2022-07-23 14:19:19,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:19,477 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-23 14:19:19,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:19,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471387877] [2022-07-23 14:19:19,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:19,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:19,550 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:19,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:19,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:19,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2022-07-23 14:19:19,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:19,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960889451] [2022-07-23 14:19:19,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:19,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:19,583 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:19,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:19,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:19,598 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2022-07-23 14:19:19,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:19,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491290524] [2022-07-23 14:19:19,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:19,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:19,619 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:19,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:19,756 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:19,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:19,757 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:19,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:19,758 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:19:19,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:19,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:19,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:19,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2022-07-23 14:19:19,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:19,759 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:19,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:19,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:19,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:19,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:19,910 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:19,910 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:19:19,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:19,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:19,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:19,922 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:19,922 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:19,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-23 14:19:19,939 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:19,940 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:19,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:19,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:19,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:19,957 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:19,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-23 14:19:19,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:19,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:19,970 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:19,970 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:19,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:19,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:19,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:19,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:19,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-23 14:19:19,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:19,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:20,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:20,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:20,024 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:20,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:19:20,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:20,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-23 14:19:20,059 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:19:20,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:20,075 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:20,075 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:20,080 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:20,081 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:20,081 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:19:20,081 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,081 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:20,081 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:20,081 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration1_Loop [2022-07-23 14:19:20,081 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:20,081 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:20,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:20,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:20,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:20,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:20,183 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:20,189 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:19:20,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:20,196 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:20,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-23 14:19:20,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:20,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:20,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:20,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:20,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:20,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:20,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:19:20,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:20,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:20,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-07-23 14:19:20,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:20,235 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:20,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-23 14:19:20,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:20,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:20,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:20,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:20,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:20,246 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:20,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:20,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:20,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-23 14:19:20,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:20,281 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:20,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-23 14:19:20,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:20,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:20,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:20,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:20,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:20,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:20,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:20,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:20,331 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 [2022-07-23 14:19:20,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:20,332 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:20,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-23 14:19:20,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:20,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:20,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:20,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:20,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:20,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:20,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:19:20,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:20,351 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:19:20,354 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:19:20,354 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:19:20,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:20,357 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:20,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-23 14:19:20,400 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:19:20,400 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:19:20,400 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:19:20,400 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-23 14:19:20,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-07-23 14:19:20,418 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:19:20,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:20,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:20,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:20,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:20,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:20,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:20,519 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:20,520 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:20,577 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 36 states and 54 transitions. Complement of second has 8 states. [2022-07-23 14:19:20,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:20,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:20,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-07-23 14:19:20,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-23 14:19:20,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:20,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-23 14:19:20,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:20,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2022-07-23 14:19:20,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:20,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2022-07-23 14:19:20,589 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-23 14:19:20,593 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 30 transitions. [2022-07-23 14:19:20,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-23 14:19:20,594 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-23 14:19:20,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2022-07-23 14:19:20,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:20,595 INFO L369 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2022-07-23 14:19:20,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2022-07-23 14:19:20,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-07-23 14:19:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:20,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2022-07-23 14:19:20,612 INFO L392 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-07-23 14:19:20,613 INFO L374 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-07-23 14:19:20,613 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 14:19:20,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2022-07-23 14:19:20,613 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-07-23 14:19:20,614 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:20,614 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:20,614 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-23 14:19:20,614 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:19:20,614 INFO L752 eck$LassoCheckResult]: Stem: 98#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 99#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 104#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 106#L12 [2022-07-23 14:19:20,615 INFO L754 eck$LassoCheckResult]: Loop: 106#L12 assume !(10 == main_~i~0#1); 92#L12-2 assume !(0 == main_~i~0#1); 94#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 108#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 106#L12 [2022-07-23 14:19:20,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:20,615 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-23 14:19:20,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:20,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859743842] [2022-07-23 14:19:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:20,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:20,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:20,620 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:20,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:20,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2022-07-23 14:19:20,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:20,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528764829] [2022-07-23 14:19:20,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:20,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:20,629 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:20,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:20,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:20,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2022-07-23 14:19:20,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:20,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505767551] [2022-07-23 14:19:20,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:20,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:20,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:20,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:19:20,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505767551] [2022-07-23 14:19:20,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505767551] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:19:20,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:19:20,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 14:19:20,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591986814] [2022-07-23 14:19:20,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:19:20,697 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:20,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:20,697 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:20,698 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:20,698 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:19:20,698 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,698 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:20,698 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:20,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2022-07-23 14:19:20,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:20,699 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:20,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:20,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:20,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:20,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:20,780 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:20,780 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:19:20,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:20,782 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:20,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-23 14:19:20,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:20,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:20,806 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:20,806 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:20,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-07-23 14:19:20,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:20,829 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:20,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-23 14:19:20,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:20,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:20,877 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 [2022-07-23 14:19:20,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:20,879 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:20,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:19:20,886 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:20,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-23 14:19:20,989 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:19:20,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:20,995 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:20,995 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:20,995 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:20,995 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:20,995 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:19:20,995 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:20,995 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:20,995 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:20,996 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration2_Loop [2022-07-23 14:19:20,996 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:20,996 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:20,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:21,136 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:21,136 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:19:21,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:21,137 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:21,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-23 14:19:21,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:21,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:21,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:21,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:21,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:21,161 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:21,161 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:21,175 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:21,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:21,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:21,202 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:21,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-23 14:19:21,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:21,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:21,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:21,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:21,211 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-23 14:19:21,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:21,213 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-23 14:19:21,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:21,229 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:19:21,248 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:19:21,248 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:19:21,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:21,251 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:21,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-23 14:19:21,257 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:19:21,257 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:19:21,257 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:19:21,257 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-07-23 14:19:21,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:21,284 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:19:21,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:21,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:21,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:21,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:21,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:21,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:21,353 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:21,354 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:21,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 28 states and 43 transitions. Complement of second has 7 states. [2022-07-23 14:19:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:21,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-23 14:19:21,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2022-07-23 14:19:21,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:21,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2022-07-23 14:19:21,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:21,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2022-07-23 14:19:21,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:21,382 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2022-07-23 14:19:21,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-07-23 14:19:21,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 35 transitions. [2022-07-23 14:19:21,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-23 14:19:21,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-07-23 14:19:21,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 35 transitions. [2022-07-23 14:19:21,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:21,385 INFO L369 hiAutomatonCegarLoop]: Abstraction has 21 states and 35 transitions. [2022-07-23 14:19:21,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 35 transitions. [2022-07-23 14:19:21,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-07-23 14:19:21,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.7) internal successors, (34), 19 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2022-07-23 14:19:21,387 INFO L392 hiAutomatonCegarLoop]: Abstraction has 20 states and 34 transitions. [2022-07-23 14:19:21,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:19:21,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 14:19:21,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 14:19:21,391 INFO L87 Difference]: Start difference. First operand 20 states and 34 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:21,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:19:21,404 INFO L93 Difference]: Finished difference Result 32 states and 52 transitions. [2022-07-23 14:19:21,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 14:19:21,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 52 transitions. [2022-07-23 14:19:21,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-23 14:19:21,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 29 states and 46 transitions. [2022-07-23 14:19:21,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-07-23 14:19:21,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-23 14:19:21,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 46 transitions. [2022-07-23 14:19:21,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:21,408 INFO L369 hiAutomatonCegarLoop]: Abstraction has 29 states and 46 transitions. [2022-07-23 14:19:21,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 46 transitions. [2022-07-23 14:19:21,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2022-07-23 14:19:21,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 27 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 45 transitions. [2022-07-23 14:19:21,411 INFO L392 hiAutomatonCegarLoop]: Abstraction has 28 states and 45 transitions. [2022-07-23 14:19:21,411 INFO L374 stractBuchiCegarLoop]: Abstraction has 28 states and 45 transitions. [2022-07-23 14:19:21,412 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 14:19:21,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 45 transitions. [2022-07-23 14:19:21,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-07-23 14:19:21,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:21,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:21,413 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-23 14:19:21,413 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:19:21,414 INFO L752 eck$LassoCheckResult]: Stem: 241#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 242#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 249#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 254#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 236#L12-2 assume !(0 == main_~i~0#1); 238#L15-1 [2022-07-23 14:19:21,414 INFO L754 eck$LassoCheckResult]: Loop: 238#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 247#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 258#L12 assume !(10 == main_~i~0#1); 256#L12-2 assume !(0 == main_~i~0#1); 238#L15-1 [2022-07-23 14:19:21,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:21,414 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2022-07-23 14:19:21,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:21,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551187167] [2022-07-23 14:19:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:21,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:21,419 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:21,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:21,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2022-07-23 14:19:21,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:21,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449501906] [2022-07-23 14:19:21,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:21,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:21,428 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:21,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:21,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:21,432 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2022-07-23 14:19:21,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:21,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966790808] [2022-07-23 14:19:21,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:21,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:21,439 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:21,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:21,469 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:21,470 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:21,470 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:21,470 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:21,470 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:19:21,470 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,470 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:21,470 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:21,471 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2022-07-23 14:19:21,471 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:21,471 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:21,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,533 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:21,534 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:19:21,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:21,535 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:21,546 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:21,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:21,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-23 14:19:21,568 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:21,568 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:21,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:21,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:21,595 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:21,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-07-23 14:19:21,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:21,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:21,623 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:21,624 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=4} Honda state: {ULTIMATE.start_main_~up~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:21,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:21,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:21,654 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:21,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-07-23 14:19:21,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:21,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:21,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:21,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:21,703 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:21,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:19:21,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:21,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-07-23 14:19:21,831 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:19:21,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:21,838 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:21,838 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:21,838 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:21,838 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:21,839 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:19:21,839 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,839 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:21,839 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:21,839 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration3_Loop [2022-07-23 14:19:21,839 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:21,839 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:21,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:21,916 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:21,917 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:19:21,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:21,918 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:21,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-07-23 14:19:21,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:21,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:21,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:21,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:21,930 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-23 14:19:21,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:21,931 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-23 14:19:21,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:21,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:21,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:21,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:21,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:21,974 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:21,982 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 [2022-07-23 14:19:21,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:21,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:21,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:21,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:21,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:21,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:19:21,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:21,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-07-23 14:19:22,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:19:22,010 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-23 14:19:22,010 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:19:22,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,012 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-07-23 14:19:22,014 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:19:22,015 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:19:22,015 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:19:22,015 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-23 14:19:22,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:22,044 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:19:22,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:22,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:22,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:22,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:22,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:22,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:22,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:22,157 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-07-23 14:19:22,157 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 45 transitions. cyclomatic complexity: 20 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:22,193 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 45 transitions. cyclomatic complexity: 20. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 65 states and 104 transitions. Complement of second has 7 states. [2022-07-23 14:19:22,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:22,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:22,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-23 14:19:22,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2022-07-23 14:19:22,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:22,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2022-07-23 14:19:22,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:22,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2022-07-23 14:19:22,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:22,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 104 transitions. [2022-07-23 14:19:22,199 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 [2022-07-23 14:19:22,204 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-23 14:19:22,205 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 60 states and 98 transitions. [2022-07-23 14:19:22,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-23 14:19:22,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-07-23 14:19:22,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 98 transitions. [2022-07-23 14:19:22,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:22,208 INFO L369 hiAutomatonCegarLoop]: Abstraction has 60 states and 98 transitions. [2022-07-23 14:19:22,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 98 transitions. [2022-07-23 14:19:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2022-07-23 14:19:22,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.6785714285714286) internal successors, (94), 55 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 94 transitions. [2022-07-23 14:19:22,217 INFO L392 hiAutomatonCegarLoop]: Abstraction has 56 states and 94 transitions. [2022-07-23 14:19:22,217 INFO L374 stractBuchiCegarLoop]: Abstraction has 56 states and 94 transitions. [2022-07-23 14:19:22,217 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 14:19:22,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 94 transitions. [2022-07-23 14:19:22,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-23 14:19:22,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:22,219 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:22,220 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-07-23 14:19:22,220 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:19:22,220 INFO L752 eck$LassoCheckResult]: Stem: 386#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 387#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 395#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 423#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 421#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 419#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 415#L18-1 [2022-07-23 14:19:22,220 INFO L754 eck$LassoCheckResult]: Loop: 415#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 412#L12 assume !(10 == main_~i~0#1); 404#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 405#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 415#L18-1 [2022-07-23 14:19:22,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2022-07-23 14:19:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:22,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703392058] [2022-07-23 14:19:22,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:22,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:22,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:19:22,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703392058] [2022-07-23 14:19:22,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703392058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:19:22,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:19:22,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 14:19:22,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612479745] [2022-07-23 14:19:22,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:19:22,241 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:19:22,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:22,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 2 times [2022-07-23 14:19:22,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:22,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888053466] [2022-07-23 14:19:22,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:22,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:22,246 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:22,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:22,268 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:22,268 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:22,268 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:22,268 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:22,269 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:19:22,269 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,269 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:22,269 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:22,269 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2022-07-23 14:19:22,269 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:22,269 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:22,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,332 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:22,332 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:19:22,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,334 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,337 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:22,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:22,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-07-23 14:19:22,356 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:22,356 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:22,381 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 [2022-07-23 14:19:22,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,383 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:22,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:22,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-07-23 14:19:22,409 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:22,409 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:22,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:22,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,436 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:22,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:22,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-07-23 14:19:22,459 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:22,460 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: [] [2022-07-23 14:19:22,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:22,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,489 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-07-23 14:19:22,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:22,493 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:22,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-07-23 14:19:22,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,530 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-07-23 14:19:22,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:19:22,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:22,547 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:19:22,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:22,572 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:22,572 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:22,572 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:22,572 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:22,572 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:19:22,572 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,572 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:22,572 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:22,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration4_Loop [2022-07-23 14:19:22,573 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:22,573 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:22,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,622 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:22,622 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:19:22,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,624 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,632 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:22,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:22,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:22,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:22,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:22,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:22,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:19:22,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:22,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-07-23 14:19:22,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:22,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:22,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,688 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,691 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 [2022-07-23 14:19:22,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:22,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:22,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:22,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:22,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:22,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:22,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-07-23 14:19:22,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:22,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:22,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,738 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-07-23 14:19:22,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:22,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:22,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:22,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:22,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:22,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:22,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:22,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:22,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-07-23 14:19:22,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,771 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-07-23 14:19:22,773 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:22,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:22,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:22,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:22,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:22,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:22,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:19:22,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:22,781 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:19:22,783 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:19:22,783 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:19:22,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,785 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-07-23 14:19:22,788 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:19:22,788 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:19:22,788 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:19:22,788 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-23 14:19:22,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-07-23 14:19:22,804 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:19:22,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:22,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:22,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:22,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:22,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:22,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:22,856 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:22,857 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 94 transitions. cyclomatic complexity: 44 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) [2022-07-23 14:19:22,879 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 94 transitions. cyclomatic complexity: 44. 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) Result 116 states and 190 transitions. Complement of second has 7 states. [2022-07-23 14:19:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-07-23 14:19:22,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-23 14:19:22,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-23 14:19:22,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:22,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-23 14:19:22,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:22,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 8 letters. [2022-07-23 14:19:22,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:22,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 190 transitions. [2022-07-23 14:19:22,883 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2022-07-23 14:19:22,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 107 states and 175 transitions. [2022-07-23 14:19:22,884 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-07-23 14:19:22,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-07-23 14:19:22,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 175 transitions. [2022-07-23 14:19:22,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:22,885 INFO L369 hiAutomatonCegarLoop]: Abstraction has 107 states and 175 transitions. [2022-07-23 14:19:22,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 175 transitions. [2022-07-23 14:19:22,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 96. [2022-07-23 14:19:22,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.6770833333333333) internal successors, (161), 95 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 161 transitions. [2022-07-23 14:19:22,891 INFO L392 hiAutomatonCegarLoop]: Abstraction has 96 states and 161 transitions. [2022-07-23 14:19:22,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:19:22,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 14:19:22,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 14:19:22,892 INFO L87 Difference]: Start difference. First operand 96 states and 161 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:22,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:19:22,901 INFO L93 Difference]: Finished difference Result 107 states and 163 transitions. [2022-07-23 14:19:22,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 14:19:22,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 107 states and 163 transitions. [2022-07-23 14:19:22,903 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 18 [2022-07-23 14:19:22,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 107 states to 101 states and 153 transitions. [2022-07-23 14:19:22,904 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2022-07-23 14:19:22,904 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-07-23 14:19:22,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 153 transitions. [2022-07-23 14:19:22,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:22,905 INFO L369 hiAutomatonCegarLoop]: Abstraction has 101 states and 153 transitions. [2022-07-23 14:19:22,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 153 transitions. [2022-07-23 14:19:22,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2022-07-23 14:19:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.5416666666666667) internal successors, (148), 95 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 148 transitions. [2022-07-23 14:19:22,910 INFO L392 hiAutomatonCegarLoop]: Abstraction has 96 states and 148 transitions. [2022-07-23 14:19:22,910 INFO L374 stractBuchiCegarLoop]: Abstraction has 96 states and 148 transitions. [2022-07-23 14:19:22,910 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-23 14:19:22,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 148 transitions. [2022-07-23 14:19:22,911 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2022-07-23 14:19:22,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:22,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:22,911 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2022-07-23 14:19:22,911 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:19:22,911 INFO L752 eck$LassoCheckResult]: Stem: 818#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 819#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 813#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 815#L12 assume !(10 == main_~i~0#1); 822#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 877#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 873#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 867#L12 assume !(10 == main_~i~0#1); 861#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 859#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 831#L18-1 [2022-07-23 14:19:22,911 INFO L754 eck$LassoCheckResult]: Loop: 831#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 853#L12 assume !(10 == main_~i~0#1); 832#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 830#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 831#L18-1 [2022-07-23 14:19:22,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:22,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1506873443, now seen corresponding path program 1 times [2022-07-23 14:19:22,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:22,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536721609] [2022-07-23 14:19:22,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:22,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:22,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:19:22,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536721609] [2022-07-23 14:19:22,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536721609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:19:22,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:19:22,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 14:19:22,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273159396] [2022-07-23 14:19:22,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:19:22,925 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:19:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:22,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 3 times [2022-07-23 14:19:22,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:22,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878418447] [2022-07-23 14:19:22,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:22,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:22,930 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:22,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:22,950 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:22,950 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:22,950 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:22,950 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:22,950 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:19:22,950 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,950 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:22,950 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:22,950 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2022-07-23 14:19:22,950 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:22,950 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:22,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:22,988 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:22,988 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:19:22,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:22,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:22,992 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:22,999 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:22,999 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:23,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-07-23 14:19:23,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:23,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:23,044 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:23,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-07-23 14:19:23,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:19:23,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:23,067 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:19:23,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:23,093 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:23,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:23,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:23,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:23,093 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:19:23,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:23,093 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:23,093 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration5_Loop [2022-07-23 14:19:23,094 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:23,094 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:23,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,138 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:23,139 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:19:23,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:23,140 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:23,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-07-23 14:19:23,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:23,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:23,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:23,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:23,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:23,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:23,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:23,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:23,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:23,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:23,180 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:23,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-07-23 14:19:23,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:23,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:23,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:23,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:23,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:23,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:23,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:19:23,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:23,196 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:19:23,198 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:19:23,198 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:19:23,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:23,199 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:23,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-07-23 14:19:23,200 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:19:23,200 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:19:23,201 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:19:23,201 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-07-23 14:19:23,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:23,217 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:19:23,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:23,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:23,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:23,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:23,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:23,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:23,281 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:23,281 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:23,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:23,326 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 [2022-07-23 14:19:23,332 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 147 states and 221 transitions. Complement of second has 7 states. [2022-07-23 14:19:23,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:23,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:23,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-23 14:19:23,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-23 14:19:23,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:23,337 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:19:23,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:23,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:23,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:23,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:23,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:23,389 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:23,389 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:23,408 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 147 states and 221 transitions. Complement of second has 7 states. [2022-07-23 14:19:23,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:23,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:23,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-23 14:19:23,413 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-23 14:19:23,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:23,415 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:19:23,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:23,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:23,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:23,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:23,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:23,469 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:23,470 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:23,496 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 148 transitions. cyclomatic complexity: 61. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 161 states and 250 transitions. Complement of second has 6 states. [2022-07-23 14:19:23,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:23,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:23,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-07-23 14:19:23,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 4 letters. [2022-07-23 14:19:23,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:23,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2022-07-23 14:19:23,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:23,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 8 letters. [2022-07-23 14:19:23,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:23,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 250 transitions. [2022-07-23 14:19:23,501 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2022-07-23 14:19:23,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 119 states and 180 transitions. [2022-07-23 14:19:23,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-07-23 14:19:23,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2022-07-23 14:19:23,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 180 transitions. [2022-07-23 14:19:23,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:23,503 INFO L369 hiAutomatonCegarLoop]: Abstraction has 119 states and 180 transitions. [2022-07-23 14:19:23,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 180 transitions. [2022-07-23 14:19:23,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2022-07-23 14:19:23,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 76 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:23,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 117 transitions. [2022-07-23 14:19:23,508 INFO L392 hiAutomatonCegarLoop]: Abstraction has 77 states and 117 transitions. [2022-07-23 14:19:23,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:19:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 14:19:23,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 14:19:23,509 INFO L87 Difference]: Start difference. First operand 77 states and 117 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:23,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:19:23,517 INFO L93 Difference]: Finished difference Result 57 states and 79 transitions. [2022-07-23 14:19:23,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 14:19:23,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 79 transitions. [2022-07-23 14:19:23,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2022-07-23 14:19:23,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 51 states and 68 transitions. [2022-07-23 14:19:23,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-07-23 14:19:23,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-07-23 14:19:23,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 68 transitions. [2022-07-23 14:19:23,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:23,520 INFO L369 hiAutomatonCegarLoop]: Abstraction has 51 states and 68 transitions. [2022-07-23 14:19:23,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 68 transitions. [2022-07-23 14:19:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2022-07-23 14:19:23,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 47 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:23,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2022-07-23 14:19:23,522 INFO L392 hiAutomatonCegarLoop]: Abstraction has 48 states and 65 transitions. [2022-07-23 14:19:23,522 INFO L374 stractBuchiCegarLoop]: Abstraction has 48 states and 65 transitions. [2022-07-23 14:19:23,522 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-23 14:19:23,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 65 transitions. [2022-07-23 14:19:23,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2022-07-23 14:19:23,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:23,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:23,524 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:19:23,524 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:19:23,524 INFO L752 eck$LassoCheckResult]: Stem: 1665#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1666#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1674#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1694#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 1684#L12-2 assume !(0 == main_~i~0#1); 1672#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 1673#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1692#L12 assume !(10 == main_~i~0#1); 1691#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 1661#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1687#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1685#L12 [2022-07-23 14:19:23,524 INFO L754 eck$LassoCheckResult]: Loop: 1685#L12 assume !(10 == main_~i~0#1); 1683#L12-2 assume !(0 == main_~i~0#1); 1680#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 1681#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1685#L12 [2022-07-23 14:19:23,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:23,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1179049836, now seen corresponding path program 1 times [2022-07-23 14:19:23,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:23,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158604147] [2022-07-23 14:19:23,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:23,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:23,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:23,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:19:23,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158604147] [2022-07-23 14:19:23,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158604147] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:19:23,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274044589] [2022-07-23 14:19:23,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:23,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:19:23,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:23,546 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:19:23,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-07-23 14:19:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:23,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 14:19:23,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:23,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:19:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:23,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274044589] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:19:23,599 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:19:23,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-07-23 14:19:23,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553734808] [2022-07-23 14:19:23,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:19:23,601 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:19:23,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:23,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 2 times [2022-07-23 14:19:23,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:23,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490520889] [2022-07-23 14:19:23,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:23,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:23,609 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:23,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:23,646 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:23,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:23,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:23,647 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:23,647 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:19:23,647 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,647 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:23,647 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:23,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2022-07-23 14:19:23,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:23,647 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:23,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,715 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:23,715 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:19:23,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:23,717 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:23,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-07-23 14:19:23,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:23,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:23,731 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:23,731 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:23,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:23,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:23,749 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:23,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-07-23 14:19:23,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:23,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:23,760 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:23,761 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:23,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-07-23 14:19:23,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:23,777 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) [2022-07-23 14:19:23,777 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 [2022-07-23 14:19:23,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:23,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:23,800 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 [2022-07-23 14:19:23,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:23,802 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:23,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-07-23 14:19:23,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:19:23,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:23,875 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:19:23,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-07-23 14:19:23,878 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:23,879 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:23,879 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:23,879 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:23,879 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:19:23,879 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,879 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:23,879 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:23,879 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration6_Loop [2022-07-23 14:19:23,879 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:23,879 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:23,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:23,951 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:23,951 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:19:23,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:23,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:23,956 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:23,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-07-23 14:19:23,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:23,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:23,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:23,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:23,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:23,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:23,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:23,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:24,007 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 [2022-07-23 14:19:24,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,008 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:24,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:24,019 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:24,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:24,019 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-23 14:19:24,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:24,021 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-23 14:19:24,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:24,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-07-23 14:19:24,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:19:24,041 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:19:24,041 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:19:24,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,044 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,051 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:19:24,052 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:19:24,052 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:19:24,052 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-07-23 14:19:24,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-07-23 14:19:24,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:24,076 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:19:24,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:24,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:24,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:24,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:24,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:24,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:24,126 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:24,127 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:24,151 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 66 states and 90 transitions. Complement of second has 7 states. [2022-07-23 14:19:24,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:24,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-23 14:19:24,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2022-07-23 14:19:24,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:24,153 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:19:24,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:24,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:24,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:24,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:24,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:24,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:24,199 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:24,199 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:24,221 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 66 states and 90 transitions. Complement of second has 7 states. [2022-07-23 14:19:24,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:24,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-07-23 14:19:24,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 11 letters. Loop has 4 letters. [2022-07-23 14:19:24,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:24,222 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:19:24,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:24,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:24,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:24,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:24,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:24,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:24,274 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:24,274 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:24,304 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 65 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 86 states and 124 transitions. Complement of second has 6 states. [2022-07-23 14:19:24,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:24,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:24,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-23 14:19:24,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 4 letters. [2022-07-23 14:19:24,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:24,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2022-07-23 14:19:24,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:24,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 8 letters. [2022-07-23 14:19:24,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:24,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 124 transitions. [2022-07-23 14:19:24,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2022-07-23 14:19:24,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 56 states and 76 transitions. [2022-07-23 14:19:24,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-07-23 14:19:24,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2022-07-23 14:19:24,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 76 transitions. [2022-07-23 14:19:24,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:24,309 INFO L369 hiAutomatonCegarLoop]: Abstraction has 56 states and 76 transitions. [2022-07-23 14:19:24,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 76 transitions. [2022-07-23 14:19:24,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 42. [2022-07-23 14:19:24,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 41 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2022-07-23 14:19:24,321 INFO L392 hiAutomatonCegarLoop]: Abstraction has 42 states and 57 transitions. [2022-07-23 14:19:24,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:19:24,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 14:19:24,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-23 14:19:24,322 INFO L87 Difference]: Start difference. First operand 42 states and 57 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:24,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:19:24,352 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2022-07-23 14:19:24,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 14:19:24,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 105 transitions. [2022-07-23 14:19:24,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 31 [2022-07-23 14:19:24,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 72 states and 93 transitions. [2022-07-23 14:19:24,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-23 14:19:24,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-07-23 14:19:24,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 93 transitions. [2022-07-23 14:19:24,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:24,355 INFO L369 hiAutomatonCegarLoop]: Abstraction has 72 states and 93 transitions. [2022-07-23 14:19:24,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 93 transitions. [2022-07-23 14:19:24,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2022-07-23 14:19:24,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 65 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:24,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 85 transitions. [2022-07-23 14:19:24,363 INFO L392 hiAutomatonCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-07-23 14:19:24,363 INFO L374 stractBuchiCegarLoop]: Abstraction has 66 states and 85 transitions. [2022-07-23 14:19:24,363 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-23 14:19:24,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 85 transitions. [2022-07-23 14:19:24,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-07-23 14:19:24,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:24,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:24,365 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 14:19:24,365 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:19:24,365 INFO L752 eck$LassoCheckResult]: Stem: 2294#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2295#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2303#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2308#L12 assume !(10 == main_~i~0#1); 2290#L12-2 assume !(0 == main_~i~0#1); 2291#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2322#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2304#L12 assume !(10 == main_~i~0#1); 2292#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 2293#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2332#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2320#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2319#L12-2 [2022-07-23 14:19:24,365 INFO L754 eck$LassoCheckResult]: Loop: 2319#L12-2 assume !(0 == main_~i~0#1); 2355#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2354#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2318#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2319#L12-2 [2022-07-23 14:19:24,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1510748164, now seen corresponding path program 2 times [2022-07-23 14:19:24,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:24,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285145917] [2022-07-23 14:19:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:24,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:24,406 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 [2022-07-23 14:19:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-23 14:19:24,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:19:24,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285145917] [2022-07-23 14:19:24,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285145917] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:19:24,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:19:24,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 14:19:24,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287470901] [2022-07-23 14:19:24,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:19:24,423 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:19:24,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:24,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2022-07-23 14:19:24,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:24,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447657744] [2022-07-23 14:19:24,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:24,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:24,427 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:24,429 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:24,463 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:24,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:24,463 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:24,463 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:24,463 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:19:24,463 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,463 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:24,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:24,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2022-07-23 14:19:24,464 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:24,464 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:24,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:24,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:24,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:24,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:24,516 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:24,517 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:19:24,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,518 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:24,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:24,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-07-23 14:19:24,542 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:24,542 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:24,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2022-07-23 14:19:24,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,559 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-07-23 14:19:24,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:24,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:24,571 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:24,571 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:24,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-07-23 14:19:24,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,587 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-07-23 14:19:24,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:24,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:24,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:24,601 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:24,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:24,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,617 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) [2022-07-23 14:19:24,618 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 [2022-07-23 14:19:24,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:24,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:24,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2022-07-23 14:19:24,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,641 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-07-23 14:19:24,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:19:24,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:24,717 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:19:24,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:24,721 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:24,721 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:24,721 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:24,721 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:24,721 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:19:24,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:24,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:24,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration7_Loop [2022-07-23 14:19:24,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:24,721 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:24,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:24,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:24,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:24,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:24,782 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:24,782 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:19:24,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,783 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:24,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-07-23 14:19:24,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:24,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:24,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:24,796 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-07-23 14:19:24,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:24,797 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-07-23 14:19:24,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:24,798 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:24,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2022-07-23 14:19:24,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,815 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-07-23 14:19:24,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:24,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:24,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:24,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:24,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:24,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:24,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:24,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:24,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2022-07-23 14:19:24,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,845 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-07-23 14:19:24,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:24,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:24,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:24,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:24,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:24,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:24,854 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:24,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:24,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:24,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,908 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:24,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:24,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:24,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:24,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:24,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:24,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:19:24,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:24,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-07-23 14:19:24,935 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:19:24,937 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-23 14:19:24,937 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:19:24,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:24,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:24,940 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:24,948 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:19:24,948 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:19:24,948 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:19:24,948 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-23 14:19:24,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-07-23 14:19:24,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:24,971 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:19:24,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:24,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:24,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:25,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:25,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:25,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:25,016 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:25,016 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 85 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,037 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 85 transitions. cyclomatic complexity: 23. 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 160 states and 209 transitions. Complement of second has 7 states. [2022-07-23 14:19:25,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-23 14:19:25,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-07-23 14:19:25,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:25,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-07-23 14:19:25,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:25,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2022-07-23 14:19:25,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:25,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 209 transitions. [2022-07-23 14:19:25,040 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-07-23 14:19:25,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 126 states and 161 transitions. [2022-07-23 14:19:25,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-07-23 14:19:25,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-07-23 14:19:25,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 161 transitions. [2022-07-23 14:19:25,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:25,041 INFO L369 hiAutomatonCegarLoop]: Abstraction has 126 states and 161 transitions. [2022-07-23 14:19:25,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 161 transitions. [2022-07-23 14:19:25,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2022-07-23 14:19:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.2916666666666667) internal successors, (155), 119 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 155 transitions. [2022-07-23 14:19:25,044 INFO L392 hiAutomatonCegarLoop]: Abstraction has 120 states and 155 transitions. [2022-07-23 14:19:25,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:19:25,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 14:19:25,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 14:19:25,045 INFO L87 Difference]: Start difference. First operand 120 states and 155 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) 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) [2022-07-23 14:19:25,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:19:25,062 INFO L93 Difference]: Finished difference Result 138 states and 174 transitions. [2022-07-23 14:19:25,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 14:19:25,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 174 transitions. [2022-07-23 14:19:25,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2022-07-23 14:19:25,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 138 states and 174 transitions. [2022-07-23 14:19:25,066 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-07-23 14:19:25,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-07-23 14:19:25,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 138 states and 174 transitions. [2022-07-23 14:19:25,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:25,066 INFO L369 hiAutomatonCegarLoop]: Abstraction has 138 states and 174 transitions. [2022-07-23 14:19:25,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states and 174 transitions. [2022-07-23 14:19:25,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 117. [2022-07-23 14:19:25,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 117 states have (on average 1.2564102564102564) internal successors, (147), 116 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2022-07-23 14:19:25,069 INFO L392 hiAutomatonCegarLoop]: Abstraction has 117 states and 147 transitions. [2022-07-23 14:19:25,069 INFO L374 stractBuchiCegarLoop]: Abstraction has 117 states and 147 transitions. [2022-07-23 14:19:25,069 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-23 14:19:25,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states and 147 transitions. [2022-07-23 14:19:25,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-07-23 14:19:25,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:25,069 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:25,070 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 2, 1, 1, 1] [2022-07-23 14:19:25,070 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:19:25,070 INFO L752 eck$LassoCheckResult]: Stem: 2854#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2855#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 2859#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2867#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2846#L12-2 assume !(0 == main_~i~0#1); 2847#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2961#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2862#L12 assume !(10 == main_~i~0#1); 2848#L12-2 assume !(0 == main_~i~0#1); 2849#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2858#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2960#L12 assume !(10 == main_~i~0#1); 2959#L12-2 assume !(0 == main_~i~0#1); 2958#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2956#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2955#L12 assume !(10 == main_~i~0#1); 2954#L12-2 assume !(0 == main_~i~0#1); 2952#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2953#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2957#L12 assume !(10 == main_~i~0#1); 2861#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 2921#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2919#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2918#L12 assume !(10 == main_~i~0#1); 2896#L12-2 assume !(0 == main_~i~0#1); 2898#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 2897#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2895#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2869#L12-2 [2022-07-23 14:19:25,070 INFO L754 eck$LassoCheckResult]: Loop: 2869#L12-2 assume !(0 == main_~i~0#1); 2864#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 2865#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 2893#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 2869#L12-2 [2022-07-23 14:19:25,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:25,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1054469156, now seen corresponding path program 3 times [2022-07-23 14:19:25,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:25,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305714068] [2022-07-23 14:19:25,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:25,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:25,112 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-23 14:19:25,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:19:25,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305714068] [2022-07-23 14:19:25,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305714068] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:19:25,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73393416] [2022-07-23 14:19:25,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-23 14:19:25,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:19:25,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:25,114 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:19:25,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2022-07-23 14:19:25,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-23 14:19:25,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 14:19:25,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:25,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:25,160 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-23 14:19:25,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:19:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-23 14:19:25,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73393416] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:19:25,195 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:19:25,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2022-07-23 14:19:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109524735] [2022-07-23 14:19:25,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:19:25,195 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-23 14:19:25,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2022-07-23 14:19:25,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:25,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379935019] [2022-07-23 14:19:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:25,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:25,199 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:25,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:25,202 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:25,230 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:25,230 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:25,231 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:25,231 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:25,231 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:19:25,231 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:25,231 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:25,231 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:25,231 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2022-07-23 14:19:25,231 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:25,231 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:25,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:25,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:25,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:25,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:25,285 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:25,285 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:19:25,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:25,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:25,288 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:25,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-07-23 14:19:25,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:25,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:25,301 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:25,301 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:25,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:25,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:25,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:25,318 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:25,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-07-23 14:19:25,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:25,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:25,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2022-07-23 14:19:25,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:25,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:25,346 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:25,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:19:25,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:25,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-07-23 14:19:25,430 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:19:25,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2022-07-23 14:19:25,433 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:25,433 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:25,433 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:25,433 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:25,433 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:19:25,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:25,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:25,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:25,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration8_Loop [2022-07-23 14:19:25,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:25,434 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:25,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:25,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:25,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:25,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:25,494 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:25,494 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:19:25,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:25,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:25,495 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:25,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2022-07-23 14:19:25,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:25,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:25,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:25,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:25,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:25,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:25,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:25,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:25,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:25,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:25,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:25,577 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:25,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2022-07-23 14:19:25,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:25,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:25,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:25,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:25,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:25,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:25,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:19:25,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:25,587 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:19:25,590 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-23 14:19:25,590 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-23 14:19:25,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:25,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:25,591 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:25,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2022-07-23 14:19:25,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:19:25,596 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:19:25,596 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:19:25,597 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-23 14:19:25,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2022-07-23 14:19:25,612 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:19:25,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:25,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:25,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:25,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:25,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:25,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:25,686 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:25,686 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,740 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 [2022-07-23 14:19:25,748 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 164 states and 204 transitions. Complement of second has 7 states. [2022-07-23 14:19:25,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:25,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-07-23 14:19:25,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 4 letters. [2022-07-23 14:19:25,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:25,749 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:19:25,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:25,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:25,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:25,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:25,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:25,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:25,808 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:25,809 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,830 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 198 states and 239 transitions. Complement of second has 7 states. [2022-07-23 14:19:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-07-23 14:19:25,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 28 letters. Loop has 4 letters. [2022-07-23 14:19:25,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:25,832 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:19:25,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:25,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:25,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:25,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 14:19:25,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:25,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:19:25,896 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 14:19:25,896 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,915 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 117 states and 147 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 176 states and 219 transitions. Complement of second has 8 states. [2022-07-23 14:19:25,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:25,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-07-23 14:19:25,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 4 letters. [2022-07-23 14:19:25,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:25,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 32 letters. Loop has 4 letters. [2022-07-23 14:19:25,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:25,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 8 letters. [2022-07-23 14:19:25,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:25,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 219 transitions. [2022-07-23 14:19:25,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2022-07-23 14:19:25,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 121 states and 151 transitions. [2022-07-23 14:19:25,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2022-07-23 14:19:25,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-07-23 14:19:25,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 151 transitions. [2022-07-23 14:19:25,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:25,920 INFO L369 hiAutomatonCegarLoop]: Abstraction has 121 states and 151 transitions. [2022-07-23 14:19:25,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 151 transitions. [2022-07-23 14:19:25,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 76. [2022-07-23 14:19:25,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 76 states have (on average 1.25) internal successors, (95), 75 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 95 transitions. [2022-07-23 14:19:25,922 INFO L392 hiAutomatonCegarLoop]: Abstraction has 76 states and 95 transitions. [2022-07-23 14:19:25,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:19:25,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 14:19:25,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-23 14:19:25,923 INFO L87 Difference]: Start difference. First operand 76 states and 95 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:19:25,990 INFO L93 Difference]: Finished difference Result 158 states and 194 transitions. [2022-07-23 14:19:25,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 14:19:25,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 158 states and 194 transitions. [2022-07-23 14:19:25,991 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 73 [2022-07-23 14:19:25,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 158 states to 153 states and 188 transitions. [2022-07-23 14:19:25,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-23 14:19:25,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-23 14:19:25,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 153 states and 188 transitions. [2022-07-23 14:19:25,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:25,993 INFO L369 hiAutomatonCegarLoop]: Abstraction has 153 states and 188 transitions. [2022-07-23 14:19:25,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states and 188 transitions. [2022-07-23 14:19:25,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 104. [2022-07-23 14:19:25,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.2115384615384615) internal successors, (126), 103 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2022-07-23 14:19:25,995 INFO L392 hiAutomatonCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-07-23 14:19:25,996 INFO L374 stractBuchiCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-07-23 14:19:25,996 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-23 14:19:25,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 126 transitions. [2022-07-23 14:19:25,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-07-23 14:19:25,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:25,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:25,997 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-07-23 14:19:25,997 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 10, 10, 6, 5, 1, 1] [2022-07-23 14:19:25,998 INFO L752 eck$LassoCheckResult]: Stem: 4245#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4246#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4240#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4242#L12 assume !(10 == main_~i~0#1); 4265#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4263#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4255#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4256#L12 [2022-07-23 14:19:25,998 INFO L754 eck$LassoCheckResult]: Loop: 4256#L12 assume !(10 == main_~i~0#1); 4284#L12-2 assume !(0 == main_~i~0#1); 4283#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4282#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4281#L12 assume !(10 == main_~i~0#1); 4280#L12-2 assume !(0 == main_~i~0#1); 4279#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4278#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4277#L12 assume !(10 == main_~i~0#1); 4276#L12-2 assume !(0 == main_~i~0#1); 4275#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4274#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4273#L12 assume !(10 == main_~i~0#1); 4272#L12-2 assume !(0 == main_~i~0#1); 4271#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4270#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4269#L12 assume !(10 == main_~i~0#1); 4259#L12-2 assume !(0 == main_~i~0#1); 4262#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4261#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4258#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4260#L12-2 assume !(0 == main_~i~0#1); 4324#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4323#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4322#L12 assume !(10 == main_~i~0#1); 4321#L12-2 assume !(0 == main_~i~0#1); 4320#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4319#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4318#L12 assume !(10 == main_~i~0#1); 4317#L12-2 assume !(0 == main_~i~0#1); 4316#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4315#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4314#L12 assume !(10 == main_~i~0#1); 4313#L12-2 assume !(0 == main_~i~0#1); 4312#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4311#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4309#L12 assume !(10 == main_~i~0#1); 4308#L12-2 assume !(0 == main_~i~0#1); 4306#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4307#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4242#L12 assume !(10 == main_~i~0#1); 4265#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4263#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4255#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4256#L12 [2022-07-23 14:19:25,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:25,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 2 times [2022-07-23 14:19:25,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:25,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907366965] [2022-07-23 14:19:25,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:25,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:26,003 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:26,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:26,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:26,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1466490324, now seen corresponding path program 1 times [2022-07-23 14:19:26,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:26,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609250329] [2022-07-23 14:19:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:26,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-23 14:19:26,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:19:26,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609250329] [2022-07-23 14:19:26,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609250329] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:19:26,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027281665] [2022-07-23 14:19:26,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:26,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:19:26,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:26,069 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:19:26,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2022-07-23 14:19:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:26,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-23 14:19:26,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:26,131 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-23 14:19:26,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:19:26,205 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-23 14:19:26,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027281665] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:19:26,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:19:26,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2022-07-23 14:19:26,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006977791] [2022-07-23 14:19:26,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:19:26,207 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 14:19:26,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:19:26,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 14:19:26,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-23 14:19:26,209 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. cyclomatic complexity: 26 Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:26,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:19:26,269 INFO L93 Difference]: Finished difference Result 198 states and 243 transitions. [2022-07-23 14:19:26,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 14:19:26,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 243 transitions. [2022-07-23 14:19:26,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 72 [2022-07-23 14:19:26,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 173 states and 213 transitions. [2022-07-23 14:19:26,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-07-23 14:19:26,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-07-23 14:19:26,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 173 states and 213 transitions. [2022-07-23 14:19:26,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:26,272 INFO L369 hiAutomatonCegarLoop]: Abstraction has 173 states and 213 transitions. [2022-07-23 14:19:26,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states and 213 transitions. [2022-07-23 14:19:26,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 164. [2022-07-23 14:19:26,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 164 states have (on average 1.225609756097561) internal successors, (201), 163 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:26,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 201 transitions. [2022-07-23 14:19:26,275 INFO L392 hiAutomatonCegarLoop]: Abstraction has 164 states and 201 transitions. [2022-07-23 14:19:26,275 INFO L374 stractBuchiCegarLoop]: Abstraction has 164 states and 201 transitions. [2022-07-23 14:19:26,275 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-23 14:19:26,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states and 201 transitions. [2022-07-23 14:19:26,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 69 [2022-07-23 14:19:26,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:26,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:26,277 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-07-23 14:19:26,277 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [16, 15, 15, 10, 6, 1, 1] [2022-07-23 14:19:26,278 INFO L752 eck$LassoCheckResult]: Stem: 4815#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4816#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4817#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4819#L12 assume !(10 == main_~i~0#1); 4859#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4858#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4829#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4830#L12 [2022-07-23 14:19:26,278 INFO L754 eck$LassoCheckResult]: Loop: 4830#L12 assume !(10 == main_~i~0#1); 4851#L12-2 assume !(0 == main_~i~0#1); 4850#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4849#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4848#L12 assume !(10 == main_~i~0#1); 4847#L12-2 assume !(0 == main_~i~0#1); 4846#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4845#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4844#L12 assume !(10 == main_~i~0#1); 4843#L12-2 assume !(0 == main_~i~0#1); 4842#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4841#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4840#L12 assume !(10 == main_~i~0#1); 4839#L12-2 assume !(0 == main_~i~0#1); 4838#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4837#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4836#L12 assume !(10 == main_~i~0#1); 4833#L12-2 assume !(0 == main_~i~0#1); 4835#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4834#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4832#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 4812#L12-2 assume !(0 == main_~i~0#1); 4813#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4820#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4821#L12 assume !(10 == main_~i~0#1); 4826#L12-2 assume !(0 == main_~i~0#1); 4975#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4974#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4973#L12 assume !(10 == main_~i~0#1); 4972#L12-2 assume !(0 == main_~i~0#1); 4971#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4970#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4969#L12 assume !(10 == main_~i~0#1); 4968#L12-2 assume !(0 == main_~i~0#1); 4967#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4966#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4965#L12 assume !(10 == main_~i~0#1); 4964#L12-2 assume !(0 == main_~i~0#1); 4963#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4962#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4961#L12 assume !(10 == main_~i~0#1); 4960#L12-2 assume !(0 == main_~i~0#1); 4959#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4958#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4957#L12 assume !(10 == main_~i~0#1); 4956#L12-2 assume !(0 == main_~i~0#1); 4955#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4954#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4953#L12 assume !(10 == main_~i~0#1); 4952#L12-2 assume !(0 == main_~i~0#1); 4951#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4950#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4949#L12 assume !(10 == main_~i~0#1); 4948#L12-2 assume !(0 == main_~i~0#1); 4947#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4946#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4866#L12 assume !(10 == main_~i~0#1); 4945#L12-2 assume !(0 == main_~i~0#1); 4910#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 4865#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4819#L12 assume !(10 == main_~i~0#1); 4859#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 4858#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 4829#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4830#L12 [2022-07-23 14:19:26,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:26,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 3 times [2022-07-23 14:19:26,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:26,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949482207] [2022-07-23 14:19:26,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:26,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:26,282 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:26,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:26,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:26,285 INFO L85 PathProgramCache]: Analyzing trace with hash 726843037, now seen corresponding path program 2 times [2022-07-23 14:19:26,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:26,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309771677] [2022-07-23 14:19:26,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:26,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:26,299 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:26,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:26,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:26,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1110135673, now seen corresponding path program 4 times [2022-07-23 14:19:26,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:26,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688391659] [2022-07-23 14:19:26,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:26,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-23 14:19:26,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:19:26,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688391659] [2022-07-23 14:19:26,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688391659] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 14:19:26,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66524423] [2022-07-23 14:19:26,383 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-23 14:19:26,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 14:19:26,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:26,384 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 14:19:26,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2022-07-23 14:19:26,431 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-23 14:19:26,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 14:19:26,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 14:19:26,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-23 14:19:26,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 14:19:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 296 proven. 55 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-07-23 14:19:26,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66524423] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 14:19:26,539 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 14:19:26,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-07-23 14:19:26,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545888945] [2022-07-23 14:19:26,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 14:19:26,860 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:26,860 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:26,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:26,860 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:26,860 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:19:26,861 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:26,861 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:26,861 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:26,861 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2022-07-23 14:19:26,861 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:26,861 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:26,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:26,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:26,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:26,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:26,907 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:26,908 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:19:26,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:26,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:26,911 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:26,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:26,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:26,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2022-07-23 14:19:26,935 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:26,935 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:26,959 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 [2022-07-23 14:19:26,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:26,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:26,961 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:26,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2022-07-23 14:19:26,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:26,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:26,983 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-23 14:19:26,983 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-23 14:19:27,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:27,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:27,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:27,008 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:27,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:27,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:27,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2022-07-23 14:19:27,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:27,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:27,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:27,072 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:27,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2022-07-23 14:19:27,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:19:27,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:27,099 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-23 14:19:27,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:27,120 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:27,120 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:27,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:27,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:27,120 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:19:27,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:27,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:27,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:27,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDown.c_Iteration10_Loop [2022-07-23 14:19:27,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:27,120 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:27,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:27,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:27,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:27,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:27,167 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:27,168 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:19:27,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:27,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:27,169 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:27,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:27,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:27,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:27,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:27,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:27,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:27,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:19:27,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:27,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2022-07-23 14:19:27,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:27,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:27,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:27,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:27,232 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:19:27,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:27,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:27,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:27,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:27,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:27,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:19:27,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:19:27,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2022-07-23 14:19:27,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:19:27,279 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 [2022-07-23 14:19:27,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:27,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:27,281 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) [2022-07-23 14:19:27,281 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 [2022-07-23 14:19:27,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:19:27,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:19:27,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:19:27,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:19:27,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:19:27,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:19:27,292 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:19:27,292 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:19:27,320 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:19:27,322 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-23 14:19:27,322 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-23 14:19:27,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:27,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:27,323 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) [2022-07-23 14:19:27,323 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 [2022-07-23 14:19:27,324 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:19:27,324 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-23 14:19:27,325 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:19:27,325 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-23 14:19:27,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2022-07-23 14:19:27,341 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-23 14:19:27,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:27,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:27,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:27,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 14:19:27,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:27,513 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 [2022-07-23 14:19:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-23 14:19:27,550 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2022-07-23 14:19:27,550 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:27,641 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 489 states and 580 transitions. Complement of second has 17 states. [2022-07-23 14:19:27,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:27,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2022-07-23 14:19:27,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-23 14:19:27,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:27,642 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:19:27,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:27,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:27,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:27,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 14:19:27,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:27,808 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-23 14:19:27,809 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2022-07-23 14:19:27,809 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,024 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 784 states and 937 transitions. Complement of second has 31 states. [2022-07-23 14:19:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:28,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 67 transitions. [2022-07-23 14:19:28,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 67 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-23 14:19:28,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:28,026 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:19:28,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:28,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:28,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:28,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 14:19:28,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-23 14:19:28,198 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2022-07-23 14:19:28,198 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,412 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1329 states and 1557 transitions. Complement of second has 174 states. [2022-07-23 14:19:28,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 1 stem states 12 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 76 transitions. [2022-07-23 14:19:28,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 76 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-23 14:19:28,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:28,418 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-23 14:19:28,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:28,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:19:28,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:28,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:28,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 14:19:28,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:19:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 260 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-23 14:19:28,603 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 9 loop predicates [2022-07-23 14:19:28,603 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41 Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,831 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 164 states and 201 transitions. cyclomatic complexity: 41. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1639 states and 1887 transitions. Complement of second has 195 states. [2022-07-23 14:19:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states [2022-07-23 14:19:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 78 transitions. [2022-07-23 14:19:28,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 7 letters. Loop has 64 letters. [2022-07-23 14:19:28,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:28,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 71 letters. Loop has 64 letters. [2022-07-23 14:19:28,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:28,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 78 transitions. Stem has 7 letters. Loop has 128 letters. [2022-07-23 14:19:28,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:19:28,836 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1639 states and 1887 transitions. [2022-07-23 14:19:28,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 307 [2022-07-23 14:19:28,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1639 states to 522 states and 614 transitions. [2022-07-23 14:19:28,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-07-23 14:19:28,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2022-07-23 14:19:28,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 522 states and 614 transitions. [2022-07-23 14:19:28,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:28,849 INFO L369 hiAutomatonCegarLoop]: Abstraction has 522 states and 614 transitions. [2022-07-23 14:19:28,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states and 614 transitions. [2022-07-23 14:19:28,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 163. [2022-07-23 14:19:28,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 163 states have (on average 1.2085889570552146) internal successors, (197), 162 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2022-07-23 14:19:28,853 INFO L392 hiAutomatonCegarLoop]: Abstraction has 163 states and 197 transitions. [2022-07-23 14:19:28,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:19:28,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 14:19:28,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-23 14:19:28,853 INFO L87 Difference]: Start difference. First operand 163 states and 197 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:19:28,906 INFO L93 Difference]: Finished difference Result 398 states and 454 transitions. [2022-07-23 14:19:28,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 14:19:28,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 454 transitions. [2022-07-23 14:19:28,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 195 [2022-07-23 14:19:28,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 298 states and 353 transitions. [2022-07-23 14:19:28,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 79 [2022-07-23 14:19:28,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2022-07-23 14:19:28,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 298 states and 353 transitions. [2022-07-23 14:19:28,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:28,911 INFO L369 hiAutomatonCegarLoop]: Abstraction has 298 states and 353 transitions. [2022-07-23 14:19:28,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states and 353 transitions. [2022-07-23 14:19:28,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 152. [2022-07-23 14:19:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 152 states have (on average 1.2039473684210527) internal successors, (183), 151 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2022-07-23 14:19:28,914 INFO L392 hiAutomatonCegarLoop]: Abstraction has 152 states and 183 transitions. [2022-07-23 14:19:28,914 INFO L374 stractBuchiCegarLoop]: Abstraction has 152 states and 183 transitions. [2022-07-23 14:19:28,914 INFO L287 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-07-23 14:19:28,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 183 transitions. [2022-07-23 14:19:28,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 88 [2022-07-23 14:19:28,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:28,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:28,916 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-07-23 14:19:28,916 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [21, 20, 19, 11, 10, 2, 1] [2022-07-23 14:19:28,916 INFO L752 eck$LassoCheckResult]: Stem: 11594#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 11595#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 11599#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11609#L12 assume !(10 == main_~i~0#1); 11612#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11610#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11603#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11604#L12 [2022-07-23 14:19:28,916 INFO L754 eck$LassoCheckResult]: Loop: 11604#L12 assume !(10 == main_~i~0#1); 11692#L12-2 assume !(0 == main_~i~0#1); 11691#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11690#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11689#L12 assume !(10 == main_~i~0#1); 11688#L12-2 assume !(0 == main_~i~0#1); 11687#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11686#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11685#L12 assume !(10 == main_~i~0#1); 11684#L12-2 assume !(0 == main_~i~0#1); 11683#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11682#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11681#L12 assume !(10 == main_~i~0#1); 11678#L12-2 assume !(0 == main_~i~0#1); 11680#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11679#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11677#L12 assume !(10 == main_~i~0#1); 11586#L12-2 assume !(0 == main_~i~0#1); 11587#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11590#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11591#L12 assume !(10 == main_~i~0#1); 11676#L12-2 assume !(0 == main_~i~0#1); 11675#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11674#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11673#L12 assume !(10 == main_~i~0#1); 11672#L12-2 assume !(0 == main_~i~0#1); 11671#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11670#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11669#L12 assume !(10 == main_~i~0#1); 11668#L12-2 assume !(0 == main_~i~0#1); 11667#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11666#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11665#L12 assume !(10 == main_~i~0#1); 11664#L12-2 assume !(0 == main_~i~0#1); 11663#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11662#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11661#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11660#L12-2 assume !(0 == main_~i~0#1); 11659#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11658#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11657#L12 assume !(10 == main_~i~0#1); 11656#L12-2 assume !(0 == main_~i~0#1); 11655#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11654#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11653#L12 assume !(10 == main_~i~0#1); 11652#L12-2 assume !(0 == main_~i~0#1); 11651#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11650#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11649#L12 assume !(10 == main_~i~0#1); 11648#L12-2 assume !(0 == main_~i~0#1); 11647#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11646#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11645#L12 assume !(10 == main_~i~0#1); 11644#L12-2 assume !(0 == main_~i~0#1); 11643#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11642#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11641#L12 assume !(10 == main_~i~0#1); 11640#L12-2 assume !(0 == main_~i~0#1); 11639#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11638#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11637#L12 assume !(10 == main_~i~0#1); 11636#L12-2 assume !(0 == main_~i~0#1); 11635#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11634#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11633#L12 assume !(10 == main_~i~0#1); 11632#L12-2 assume !(0 == main_~i~0#1); 11631#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11630#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11629#L12 assume !(10 == main_~i~0#1); 11628#L12-2 assume !(0 == main_~i~0#1); 11627#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11626#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11622#L12 assume !(10 == main_~i~0#1); 11624#L12-2 assume !(0 == main_~i~0#1); 11623#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11621#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11620#L12 assume !(10 == main_~i~0#1); 11618#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11619#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11694#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11605#L12 assume !(10 == main_~i~0#1); 11615#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11610#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11603#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11604#L12 [2022-07-23 14:19:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:28,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724061, now seen corresponding path program 4 times [2022-07-23 14:19:28,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:28,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558850563] [2022-07-23 14:19:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:28,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:28,920 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:28,923 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:28,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:28,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1840948782, now seen corresponding path program 3 times [2022-07-23 14:19:28,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:28,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947252848] [2022-07-23 14:19:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:28,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:19:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-07-23 14:19:28,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:19:28,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947252848] [2022-07-23 14:19:28,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947252848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:19:28,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:19:28,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 14:19:28,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019811230] [2022-07-23 14:19:28,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:19:28,957 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 14:19:28,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:19:28,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 14:19:28,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 14:19:28,958 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. cyclomatic complexity: 36 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:19:28,971 INFO L93 Difference]: Finished difference Result 152 states and 181 transitions. [2022-07-23 14:19:28,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 14:19:28,972 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 181 transitions. [2022-07-23 14:19:28,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-07-23 14:19:28,973 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 144 states and 170 transitions. [2022-07-23 14:19:28,973 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2022-07-23 14:19:28,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2022-07-23 14:19:28,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 144 states and 170 transitions. [2022-07-23 14:19:28,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:19:28,974 INFO L369 hiAutomatonCegarLoop]: Abstraction has 144 states and 170 transitions. [2022-07-23 14:19:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states and 170 transitions. [2022-07-23 14:19:28,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 101. [2022-07-23 14:19:28,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 100 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:19:28,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2022-07-23 14:19:28,976 INFO L392 hiAutomatonCegarLoop]: Abstraction has 101 states and 117 transitions. [2022-07-23 14:19:28,976 INFO L374 stractBuchiCegarLoop]: Abstraction has 101 states and 117 transitions. [2022-07-23 14:19:28,976 INFO L287 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-07-23 14:19:28,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 117 transitions. [2022-07-23 14:19:28,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-07-23 14:19:28,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:28,977 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:28,978 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 6, 5, 4, 1, 1, 1] [2022-07-23 14:19:28,978 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-07-23 14:19:28,978 INFO L752 eck$LassoCheckResult]: Stem: 11904#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 11905#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 11908#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11917#L12 assume !(10 == main_~i~0#1); 11918#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11919#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11900#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11901#L12 assume !(10 == main_~i~0#1); 11953#L12-2 assume !(0 == main_~i~0#1); 11952#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11951#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11950#L12 assume !(10 == main_~i~0#1); 11949#L12-2 assume !(0 == main_~i~0#1); 11948#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11947#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11946#L12 assume !(10 == main_~i~0#1); 11945#L12-2 assume !(0 == main_~i~0#1); 11944#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11943#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11942#L12 assume !(10 == main_~i~0#1); 11938#L12-2 assume !(0 == main_~i~0#1); 11941#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11940#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11937#L12 assume !(10 == main_~i~0#1); 11920#L12-2 [2022-07-23 14:19:28,978 INFO L754 eck$LassoCheckResult]: Loop: 11920#L12-2 assume !(0 == main_~i~0#1); 11913#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11914#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11939#L12 assume !(10 == main_~i~0#1); 11936#L12-2 assume !(0 == main_~i~0#1); 11935#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11934#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11933#L12 assume !(10 == main_~i~0#1); 11932#L12-2 assume !(0 == main_~i~0#1); 11931#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11930#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11929#L12 assume !(10 == main_~i~0#1); 11928#L12-2 assume !(0 == main_~i~0#1); 11927#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11926#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11925#L12 assume !(10 == main_~i~0#1); 11924#L12-2 assume !(0 == main_~i~0#1); 11923#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11922#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11921#L12 assume 10 == main_~i~0#1;main_~up~0#1 := 0; 11897#L12-2 assume !(0 == main_~i~0#1); 11898#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11902#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11903#L12 assume !(10 == main_~i~0#1); 11995#L12-2 assume !(0 == main_~i~0#1); 11994#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11993#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11992#L12 assume !(10 == main_~i~0#1); 11991#L12-2 assume !(0 == main_~i~0#1); 11990#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11989#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11988#L12 assume !(10 == main_~i~0#1); 11987#L12-2 assume !(0 == main_~i~0#1); 11986#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11985#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11984#L12 assume !(10 == main_~i~0#1); 11983#L12-2 assume !(0 == main_~i~0#1); 11982#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11981#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11980#L12 assume !(10 == main_~i~0#1); 11979#L12-2 assume !(0 == main_~i~0#1); 11978#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11977#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11976#L12 assume !(10 == main_~i~0#1); 11975#L12-2 assume !(0 == main_~i~0#1); 11974#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11973#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11972#L12 assume !(10 == main_~i~0#1); 11971#L12-2 assume !(0 == main_~i~0#1); 11970#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11969#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11968#L12 assume !(10 == main_~i~0#1); 11967#L12-2 assume !(0 == main_~i~0#1); 11966#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11965#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11962#L12 assume !(10 == main_~i~0#1); 11964#L12-2 assume !(0 == main_~i~0#1); 11963#L15-1 assume !(1 == main_~up~0#1);main_~i~0#1 := main_~i~0#1 - 1; 11961#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11960#L12 assume !(10 == main_~i~0#1); 11910#L12-2 assume 0 == main_~i~0#1;main_~up~0#1 := 1; 11959#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11956#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11954#L12 assume !(10 == main_~i~0#1); 11953#L12-2 assume !(0 == main_~i~0#1); 11952#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11951#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11950#L12 assume !(10 == main_~i~0#1); 11949#L12-2 assume !(0 == main_~i~0#1); 11948#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11947#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11946#L12 assume !(10 == main_~i~0#1); 11945#L12-2 assume !(0 == main_~i~0#1); 11944#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11943#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11942#L12 assume !(10 == main_~i~0#1); 11938#L12-2 assume !(0 == main_~i~0#1); 11941#L15-1 assume 1 == main_~up~0#1;main_~i~0#1 := 1 + main_~i~0#1; 11940#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 11937#L12 assume !(10 == main_~i~0#1); 11920#L12-2 [2022-07-23 14:19:28,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:28,978 INFO L85 PathProgramCache]: Analyzing trace with hash 781927031, now seen corresponding path program 1 times [2022-07-23 14:19:28,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:28,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424505150] [2022-07-23 14:19:28,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:28,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:28,983 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:28,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:28,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:28,994 INFO L85 PathProgramCache]: Analyzing trace with hash 921517193, now seen corresponding path program 4 times [2022-07-23 14:19:28,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:28,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628461305] [2022-07-23 14:19:28,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:28,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:29,015 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:29,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:29,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:29,026 INFO L85 PathProgramCache]: Analyzing trace with hash 933372671, now seen corresponding path program 5 times [2022-07-23 14:19:29,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:29,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830500368] [2022-07-23 14:19:29,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:29,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:29,037 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:29,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:29,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 02:19:29 BoogieIcfgContainer [2022-07-23 14:19:29,525 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 14:19:29,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 14:19:29,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 14:19:29,525 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 14:19:29,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:19:19" (3/4) ... [2022-07-23 14:19:29,528 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 14:19:29,565 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 14:19:29,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 14:19:29,566 INFO L158 Benchmark]: Toolchain (without parser) took 10561.57ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 67.7MB in the beginning and 55.6MB in the end (delta: 12.1MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2022-07-23 14:19:29,566 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 77.6MB. Free memory was 56.2MB in the beginning and 56.1MB in the end (delta: 28.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:19:29,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.59ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 79.5MB in the end (delta: -12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 14:19:29,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.64ms. Allocated memory is still 100.7MB. Free memory was 79.5MB in the beginning and 78.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:19:29,567 INFO L158 Benchmark]: Boogie Preprocessor took 13.89ms. Allocated memory is still 100.7MB. Free memory was 78.0MB in the beginning and 76.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:19:29,567 INFO L158 Benchmark]: RCFGBuilder took 161.50ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 69.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 14:19:29,567 INFO L158 Benchmark]: BuchiAutomizer took 10137.36ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 69.0MB in the beginning and 58.7MB in the end (delta: 10.3MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2022-07-23 14:19:29,567 INFO L158 Benchmark]: Witness Printer took 39.86ms. Allocated memory is still 146.8MB. Free memory was 58.7MB in the beginning and 55.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:19:29,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 77.6MB. Free memory was 56.2MB in the beginning and 56.1MB in the end (delta: 28.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.59ms. Allocated memory is still 100.7MB. Free memory was 67.5MB in the beginning and 79.5MB in the end (delta: -12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.64ms. Allocated memory is still 100.7MB. Free memory was 79.5MB in the beginning and 78.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.89ms. Allocated memory is still 100.7MB. Free memory was 78.0MB in the beginning and 76.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 161.50ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 69.0MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10137.36ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 69.0MB in the beginning and 58.7MB in the end (delta: 10.3MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Witness Printer took 39.86ms. Allocated memory is still 146.8MB. Free memory was 58.7MB in the beginning and 55.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 18 terminating modules (9 trivial, 5 deterministic, 4 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 1 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function -2 * i + 1 and consists of 4 locations. One nondeterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 16 locations. 9 modules have a trivial ranking function, the largest among these consists of 13 locations. The remainder module has 101 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.0s and 12 iterations. TraceHistogramMax:21. Analysis of lassos took 6.7s. Construction of modules took 0.5s. Büchi inclusion checks took 2.5s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 18. Automata minimization 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 766 StatesRemovedByMinimization, 18 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, 0, 3, 1, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 220/480 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 459 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 441 mSDsluCounter, 235 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 921 IncrementalHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 138 mSolverCounterUnsat, 204 mSDtfsCounter, 921 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT5 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax172 hnf100 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf92 smp95 dnf122 smp94 tf109 neg96 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 15]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {i=5, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7be4f434=0, up=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 11]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND TRUE i == 0 [L16] up = 1 [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) Loop: [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i == 10 [L13] up = 0 [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND FALSE !(up == 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND TRUE i == 0 [L16] up = 1 [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) [L15] COND FALSE !(i == 0) [L18] COND TRUE up == 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i == 10) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 14:19:29,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:29,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:30,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2022-07-23 14:19:30,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-07-23 14:19:30,411 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)