./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/Parts.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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-numeric/Parts.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 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:09:45,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:09:45,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:09:46,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:09:46,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:09:46,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:09:46,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:09:46,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:09:46,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:09:46,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:09:46,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:09:46,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:09:46,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:09:46,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:09:46,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:09:46,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:09:46,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:09:46,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:09:46,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:09:46,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:09:46,049 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:09:46,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:09:46,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:09:46,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:09:46,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:09:46,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:09:46,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:09:46,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:09:46,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:09:46,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:09:46,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:09:46,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:09:46,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:09:46,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:09:46,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:09:46,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:09:46,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:09:46,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:09:46,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:09:46,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:09:46,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:09:46,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:09:46,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-13 03:09:46,113 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:09:46,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:09:46,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:09:46,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:09:46,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:09:46,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:09:46,115 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:09:46,115 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:09:46,116 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:09:46,116 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:09:46,117 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:09:46,117 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:09:46,117 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:09:46,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:09:46,117 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:09:46,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:09:46,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:09:46,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:09:46,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:09:46,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:09:46,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:09:46,118 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:09:46,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:09:46,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:09:46,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:09:46,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:09:46,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:09:46,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:09:46,121 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:09:46,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 [2022-07-13 03:09:46,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:09:46,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:09:46,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:09:46,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:09:46,349 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:09:46,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Parts.c [2022-07-13 03:09:46,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d1570b64/adbd5a96221641c8af32f9f194703395/FLAG9fc27223e [2022-07-13 03:09:46,853 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:09:46,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Parts.c [2022-07-13 03:09:46,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d1570b64/adbd5a96221641c8af32f9f194703395/FLAG9fc27223e [2022-07-13 03:09:47,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d1570b64/adbd5a96221641c8af32f9f194703395 [2022-07-13 03:09:47,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:09:47,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:09:47,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:09:47,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:09:47,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:09:47,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b17855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47, skipping insertion in model container [2022-07-13 03:09:47,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:09:47,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:09:47,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:09:47,514 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:09:47,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:09:47,537 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:09:47,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47 WrapperNode [2022-07-13 03:09:47,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:09:47,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:09:47,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:09:47,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:09:47,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,567 INFO L137 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-07-13 03:09:47,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:09:47,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:09:47,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:09:47,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:09:47,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:09:47,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:09:47,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:09:47,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:09:47,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (1/1) ... [2022-07-13 03:09:47,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:47,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:47,622 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) [2022-07-13 03:09:47,625 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 [2022-07-13 03:09:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure parts [2022-07-13 03:09:47,651 INFO L138 BoogieDeclarations]: Found implementation of procedure parts [2022-07-13 03:09:47,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:09:47,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:09:47,695 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:09:47,696 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:09:47,840 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:09:47,845 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:09:47,845 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 03:09:47,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:09:47 BoogieIcfgContainer [2022-07-13 03:09:47,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:09:47,864 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:09:47,864 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:09:47,868 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:09:47,868 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:09:47,868 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:09:47" (1/3) ... [2022-07-13 03:09:47,869 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d567281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:09:47, skipping insertion in model container [2022-07-13 03:09:47,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:09:47,869 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:09:47" (2/3) ... [2022-07-13 03:09:47,870 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d567281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:09:47, skipping insertion in model container [2022-07-13 03:09:47,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:09:47,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:09:47" (3/3) ... [2022-07-13 03:09:47,871 INFO L354 chiAutomizerObserver]: Analyzing ICFG Parts.c [2022-07-13 03:09:47,940 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:09:47,940 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:09:47,940 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:09:47,940 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:09:47,940 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:09:47,941 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:09:47,941 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:09:47,941 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:09:47,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 18 states have (on average 1.5) internal successors, (27), 18 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 03:09:47,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-13 03:09:47,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:47,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:47,987 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-13 03:09:47,987 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:09:47,987 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:09:47,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 18 states have (on average 1.5) internal successors, (27), 18 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 03:09:47,994 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-13 03:09:47,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:47,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:47,995 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-13 03:09:47,995 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:09:48,001 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 18#L28true assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 8#L31true assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 25#L34-3true [2022-07-13 03:09:48,001 INFO L754 eck$LassoCheckResult]: Loop: 25#L34-3true assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 13#L35-3true assume !true; 12#L34-2true main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 25#L34-3true [2022-07-13 03:09:48,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:48,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1510568, now seen corresponding path program 1 times [2022-07-13 03:09:48,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:48,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922713010] [2022-07-13 03:09:48,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:48,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:48,092 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:48,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:48,121 INFO L85 PathProgramCache]: Analyzing trace with hash 68968, now seen corresponding path program 1 times [2022-07-13 03:09:48,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:48,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245415332] [2022-07-13 03:09:48,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:48,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:48,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:48,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245415332] [2022-07-13 03:09:48,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245415332] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:09:48,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:09:48,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 03:09:48,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805963766] [2022-07-13 03:09:48,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:09:48,165 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:09:48,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:09:48,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 03:09:48,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 03:09:48,196 INFO L87 Difference]: Start difference. First operand has 24 states, 18 states have (on average 1.5) internal successors, (27), 18 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:09:48,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:09:48,204 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2022-07-13 03:09:48,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 03:09:48,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 33 transitions. [2022-07-13 03:09:48,215 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-13 03:09:48,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 21 states and 28 transitions. [2022-07-13 03:09:48,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-07-13 03:09:48,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-07-13 03:09:48,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2022-07-13 03:09:48,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:09:48,226 INFO L369 hiAutomatonCegarLoop]: Abstraction has 21 states and 28 transitions. [2022-07-13 03:09:48,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2022-07-13 03:09:48,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-13 03:09:48,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 03:09:48,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2022-07-13 03:09:48,249 INFO L392 hiAutomatonCegarLoop]: Abstraction has 21 states and 28 transitions. [2022-07-13 03:09:48,249 INFO L374 stractBuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2022-07-13 03:09:48,250 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-13 03:09:48,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2022-07-13 03:09:48,250 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-13 03:09:48,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:48,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:48,251 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-13 03:09:48,251 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-13 03:09:48,251 INFO L752 eck$LassoCheckResult]: Stem: 66#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 67#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 70#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 68#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 69#L34-3 [2022-07-13 03:09:48,251 INFO L754 eck$LassoCheckResult]: Loop: 69#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 72#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 71#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 69#L34-3 [2022-07-13 03:09:48,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:48,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1510568, now seen corresponding path program 2 times [2022-07-13 03:09:48,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:48,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089280392] [2022-07-13 03:09:48,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:48,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:48,269 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:48,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:48,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:48,275 INFO L85 PathProgramCache]: Analyzing trace with hash 68720, now seen corresponding path program 1 times [2022-07-13 03:09:48,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:48,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87589948] [2022-07-13 03:09:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:48,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:48,283 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:48,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:48,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:48,288 INFO L85 PathProgramCache]: Analyzing trace with hash 2051697257, now seen corresponding path program 1 times [2022-07-13 03:09:48,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:48,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847163274] [2022-07-13 03:09:48,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:48,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:48,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:48,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:48,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847163274] [2022-07-13 03:09:48,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847163274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:09:48,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:09:48,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 03:09:48,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131226178] [2022-07-13 03:09:48,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:09:48,366 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:48,367 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:48,367 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:48,367 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:48,367 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:09:48,367 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:48,367 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:48,368 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:48,368 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration2_Loop [2022-07-13 03:09:48,368 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:48,368 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:48,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:48,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:48,457 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:48,457 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:09:48,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:48,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:48,467 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) [2022-07-13 03:09:48,474 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:48,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:48,484 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 [2022-07-13 03:09:48,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-13 03:09:48,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:48,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:48,516 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) [2022-07-13 03:09:48,517 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 [2022-07-13 03:09:48,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:09:48,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:48,655 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:09:48,658 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 [2022-07-13 03:09:48,659 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:48,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:48,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:48,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:48,659 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:09:48,659 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:48,659 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:48,659 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:48,659 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration2_Loop [2022-07-13 03:09:48,659 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:48,659 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:48,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:48,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:48,708 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:48,712 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:09:48,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:48,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:48,716 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) [2022-07-13 03:09:48,717 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 [2022-07-13 03:09:48,721 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 [2022-07-13 03:09:48,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:48,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:48,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:48,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:48,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:48,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:48,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:48,739 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:09:48,747 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-07-13 03:09:48,748 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-07-13 03:09:48,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:48,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:48,755 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) [2022-07-13 03:09:48,775 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:09:48,775 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:09:48,776 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:09:48,776 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1) = -1*ULTIMATE.start_main_~p~0#1 Supporting invariants [] [2022-07-13 03:09:48,787 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 [2022-07-13 03:09:48,795 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 [2022-07-13 03:09:48,798 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:09:48,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:48,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:09:48,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:48,839 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:09:48,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:48,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:48,913 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 [2022-07-13 03:09:48,914 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 28 transitions. cyclomatic complexity: 9 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) [2022-07-13 03:09:48,973 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 28 transitions. cyclomatic complexity: 9. 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 29 states and 39 transitions. Complement of second has 7 states. [2022-07-13 03:09:48,973 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 [2022-07-13 03:09:48,975 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) [2022-07-13 03:09:48,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-07-13 03:09:48,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2022-07-13 03:09:48,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:48,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-13 03:09:48,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:48,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2022-07-13 03:09:48,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:48,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 39 transitions. [2022-07-13 03:09:48,979 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2022-07-13 03:09:48,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 27 states and 37 transitions. [2022-07-13 03:09:48,982 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-07-13 03:09:48,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-07-13 03:09:48,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 37 transitions. [2022-07-13 03:09:48,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:48,983 INFO L369 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2022-07-13 03:09:48,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 37 transitions. [2022-07-13 03:09:48,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2022-07-13 03:09:48,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 03:09:48,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2022-07-13 03:09:48,987 INFO L392 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2022-07-13 03:09:48,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:09:48,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 03:09:48,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 03:09:48,988 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. 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) [2022-07-13 03:09:49,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:09:49,016 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2022-07-13 03:09:49,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 03:09:49,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2022-07-13 03:09:49,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2022-07-13 03:09:49,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 24 states and 31 transitions. [2022-07-13 03:09:49,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2022-07-13 03:09:49,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-07-13 03:09:49,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2022-07-13 03:09:49,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 03:09:49,029 INFO L369 hiAutomatonCegarLoop]: Abstraction has 24 states and 31 transitions. [2022-07-13 03:09:49,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2022-07-13 03:09:49,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-07-13 03:09:49,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-13 03:09:49,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2022-07-13 03:09:49,031 INFO L392 hiAutomatonCegarLoop]: Abstraction has 22 states and 29 transitions. [2022-07-13 03:09:49,032 INFO L374 stractBuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2022-07-13 03:09:49,032 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-13 03:09:49,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2022-07-13 03:09:49,033 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2022-07-13 03:09:49,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:49,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:49,033 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-13 03:09:49,033 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:49,034 INFO L752 eck$LassoCheckResult]: Stem: 218#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 219#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 222#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 220#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 221#L34-3 [2022-07-13 03:09:49,034 INFO L754 eck$LassoCheckResult]: Loop: 221#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 225#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 209#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 216#partsENTRY ~p := #in~p;~q := #in~q; 217#L20 assume ~p <= 0;#res := 1; 227#partsFINAL assume true; 208#partsEXIT >#68#return; 214#L36-1 havoc main_#t~ret8#1; 228#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 229#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 223#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 221#L34-3 [2022-07-13 03:09:49,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:49,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1510568, now seen corresponding path program 3 times [2022-07-13 03:09:49,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:49,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922548452] [2022-07-13 03:09:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:49,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:49,039 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:49,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:49,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:49,043 INFO L85 PathProgramCache]: Analyzing trace with hash 523036987, now seen corresponding path program 1 times [2022-07-13 03:09:49,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:49,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27436003] [2022-07-13 03:09:49,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:49,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:49,050 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:49,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:49,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:49,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1398357556, now seen corresponding path program 1 times [2022-07-13 03:09:49,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:49,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406100574] [2022-07-13 03:09:49,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:49,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:49,067 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:49,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:49,194 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:49,194 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:49,194 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:49,194 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:49,194 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:09:49,194 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,195 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:49,195 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:49,195 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration3_Loop [2022-07-13 03:09:49,195 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:49,195 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:49,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:49,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:49,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:49,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:49,250 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:49,250 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:09:49,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:49,256 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) [2022-07-13 03:09:49,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:49,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:49,264 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 [2022-07-13 03:09:49,271 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:49,272 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:49,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:49,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:49,291 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) [2022-07-13 03:09:49,292 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 [2022-07-13 03:09:49,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:49,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:49,323 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:49,323 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret8#1=0} Honda state: {ULTIMATE.start_main_#t~ret8#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:49,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:49,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:49,350 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) [2022-07-13 03:09:49,351 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 [2022-07-13 03:09:49,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:49,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:49,388 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:49,388 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:49,405 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 [2022-07-13 03:09:49,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:49,407 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) [2022-07-13 03:09:49,408 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 [2022-07-13 03:09:49,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:49,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:49,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:49,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:49,449 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) [2022-07-13 03:09:49,450 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 [2022-07-13 03:09:49,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:09:49,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:49,617 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:09:49,621 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 [2022-07-13 03:09:49,622 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:49,622 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:49,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:49,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:49,622 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:09:49,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:49,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:49,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration3_Loop [2022-07-13 03:09:49,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:49,622 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:49,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:49,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:49,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:49,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:49,686 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:49,687 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:09:49,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:49,690 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) [2022-07-13 03:09:49,693 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 [2022-07-13 03:09:49,694 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 [2022-07-13 03:09:49,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:49,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:49,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:49,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:49,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:49,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:49,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:49,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:49,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:49,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:49,730 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) [2022-07-13 03:09:49,739 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 [2022-07-13 03:09:49,740 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 [2022-07-13 03:09:49,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:49,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:49,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:49,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:49,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:49,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:49,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:49,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:49,769 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 [2022-07-13 03:09:49,784 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 [2022-07-13 03:09:49,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:49,786 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) [2022-07-13 03:09:49,786 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 [2022-07-13 03:09:49,788 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 [2022-07-13 03:09:49,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:49,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:49,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:49,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:49,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:49,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:49,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:49,831 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:09:49,835 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-13 03:09:49,835 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:09:49,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:49,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:49,840 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) [2022-07-13 03:09:49,847 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:09:49,847 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:09:49,848 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:09:49,848 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1) = -2*ULTIMATE.start_main_~p~0#1 + 1 Supporting invariants [] [2022-07-13 03:09:49,866 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 [2022-07-13 03:09:49,870 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 [2022-07-13 03:09:49,871 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:09:49,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:49,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:09:49,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:49,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:09:49,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:49,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:49,985 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2022-07-13 03:09:49,986 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:09:50,127 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 9. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 143 states and 212 transitions. Complement of second has 28 states. [2022-07-13 03:09:50,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2022-07-13 03:09:50,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:09:50,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 59 transitions. [2022-07-13 03:09:50,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 59 transitions. Stem has 4 letters. Loop has 11 letters. [2022-07-13 03:09:50,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:50,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 59 transitions. Stem has 15 letters. Loop has 11 letters. [2022-07-13 03:09:50,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:50,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 59 transitions. Stem has 4 letters. Loop has 22 letters. [2022-07-13 03:09:50,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:50,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 143 states and 212 transitions. [2022-07-13 03:09:50,136 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 18 [2022-07-13 03:09:50,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 143 states to 142 states and 211 transitions. [2022-07-13 03:09:50,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72 [2022-07-13 03:09:50,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2022-07-13 03:09:50,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 142 states and 211 transitions. [2022-07-13 03:09:50,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:50,150 INFO L369 hiAutomatonCegarLoop]: Abstraction has 142 states and 211 transitions. [2022-07-13 03:09:50,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states and 211 transitions. [2022-07-13 03:09:50,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 133. [2022-07-13 03:09:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 93 states have (on average 1.3118279569892473) internal successors, (122), 88 states have internal predecessors, (122), 28 states have call successors, (28), 8 states have call predecessors, (28), 12 states have return successors, (48), 36 states have call predecessors, (48), 28 states have call successors, (48) [2022-07-13 03:09:50,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 198 transitions. [2022-07-13 03:09:50,176 INFO L392 hiAutomatonCegarLoop]: Abstraction has 133 states and 198 transitions. [2022-07-13 03:09:50,176 INFO L374 stractBuchiCegarLoop]: Abstraction has 133 states and 198 transitions. [2022-07-13 03:09:50,176 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-13 03:09:50,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 133 states and 198 transitions. [2022-07-13 03:09:50,179 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 18 [2022-07-13 03:09:50,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:50,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:50,183 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-13 03:09:50,183 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:50,184 INFO L752 eck$LassoCheckResult]: Stem: 501#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 502#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 508#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 506#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 507#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 535#L35-3 [2022-07-13 03:09:50,184 INFO L754 eck$LassoCheckResult]: Loop: 535#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 537#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 542#partsENTRY ~p := #in~p;~q := #in~q; 555#L20 assume !(~p <= 0); 547#L21 assume ~q <= 0;#res := 0; 544#partsFINAL assume true; 541#partsEXIT >#68#return; 539#L36-1 havoc main_#t~ret8#1; 538#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 536#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 512#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 513#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 535#L35-3 [2022-07-13 03:09:50,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:50,185 INFO L85 PathProgramCache]: Analyzing trace with hash 46827647, now seen corresponding path program 1 times [2022-07-13 03:09:50,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:50,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787712700] [2022-07-13 03:09:50,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:50,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:50,196 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:50,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:50,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:50,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1489423173, now seen corresponding path program 1 times [2022-07-13 03:09:50,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:50,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467736432] [2022-07-13 03:09:50,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:50,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:50,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 03:09:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:50,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:50,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:50,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467736432] [2022-07-13 03:09:50,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467736432] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:09:50,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:09:50,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 03:09:50,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851773760] [2022-07-13 03:09:50,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:09:50,306 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:09:50,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:09:50,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 03:09:50,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-13 03:09:50,307 INFO L87 Difference]: Start difference. First operand 133 states and 198 transitions. cyclomatic complexity: 70 Second operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:09:50,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:09:50,548 INFO L93 Difference]: Finished difference Result 251 states and 420 transitions. [2022-07-13 03:09:50,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 03:09:50,550 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 251 states and 420 transitions. [2022-07-13 03:09:50,556 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 36 [2022-07-13 03:09:50,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 251 states to 245 states and 414 transitions. [2022-07-13 03:09:50,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 124 [2022-07-13 03:09:50,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 124 [2022-07-13 03:09:50,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 245 states and 414 transitions. [2022-07-13 03:09:50,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:50,564 INFO L369 hiAutomatonCegarLoop]: Abstraction has 245 states and 414 transitions. [2022-07-13 03:09:50,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states and 414 transitions. [2022-07-13 03:09:50,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 214. [2022-07-13 03:09:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 144 states have (on average 1.2569444444444444) internal successors, (181), 144 states have internal predecessors, (181), 40 states have call successors, (40), 12 states have call predecessors, (40), 30 states have return successors, (146), 57 states have call predecessors, (146), 40 states have call successors, (146) [2022-07-13 03:09:50,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 367 transitions. [2022-07-13 03:09:50,608 INFO L392 hiAutomatonCegarLoop]: Abstraction has 214 states and 367 transitions. [2022-07-13 03:09:50,608 INFO L374 stractBuchiCegarLoop]: Abstraction has 214 states and 367 transitions. [2022-07-13 03:09:50,608 INFO L287 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-07-13 03:09:50,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 214 states and 367 transitions. [2022-07-13 03:09:50,617 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 [2022-07-13 03:09:50,620 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 26 [2022-07-13 03:09:50,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:50,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:50,622 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-13 03:09:50,622 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:50,622 INFO L752 eck$LassoCheckResult]: Stem: 897#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 898#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 904#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 902#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 903#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 940#L35-3 [2022-07-13 03:09:50,622 INFO L754 eck$LassoCheckResult]: Loop: 940#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 926#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 947#partsENTRY ~p := #in~p;~q := #in~q; 988#L20 assume !(~p <= 0); 984#L21 assume ~q <= 0;#res := 0; 985#partsFINAL assume true; 1088#partsEXIT >#68#return; 1011#L36-1 havoc main_#t~ret8#1; 1007#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 940#L35-3 [2022-07-13 03:09:50,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:50,623 INFO L85 PathProgramCache]: Analyzing trace with hash 46827647, now seen corresponding path program 2 times [2022-07-13 03:09:50,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:50,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373896282] [2022-07-13 03:09:50,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:50,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:50,639 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:50,646 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:50,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:50,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1678232514, now seen corresponding path program 1 times [2022-07-13 03:09:50,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:50,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125053783] [2022-07-13 03:09:50,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:50,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:50,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:50,658 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:50,665 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:50,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:50,668 INFO L85 PathProgramCache]: Analyzing trace with hash 616296708, now seen corresponding path program 1 times [2022-07-13 03:09:50,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:50,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853825317] [2022-07-13 03:09:50,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:50,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:50,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 03:09:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:50,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:50,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853825317] [2022-07-13 03:09:50,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853825317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:09:50,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:09:50,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 03:09:50,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801468854] [2022-07-13 03:09:50,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:09:50,816 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:50,817 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:50,817 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:50,817 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:50,817 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:09:50,817 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:50,817 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:50,817 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:50,818 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration5_Loop [2022-07-13 03:09:50,818 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:50,818 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:50,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:50,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:50,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:50,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:50,855 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:50,855 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:09:50,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:50,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:50,856 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) [2022-07-13 03:09:50,862 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 [2022-07-13 03:09:50,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:50,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:50,874 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:50,874 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~p~0#1=1} Honda state: {ULTIMATE.start_main_~p~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:50,889 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 [2022-07-13 03:09:50,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:50,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:50,890 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) [2022-07-13 03:09:50,891 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 [2022-07-13 03:09:50,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:50,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:50,913 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:50,914 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:50,939 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 [2022-07-13 03:09:50,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:50,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:50,941 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) [2022-07-13 03:09:50,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:50,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:50,960 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 [2022-07-13 03:09:50,990 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 [2022-07-13 03:09:50,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:50,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:50,991 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) [2022-07-13 03:09:50,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:09:50,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:51,019 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 [2022-07-13 03:09:51,031 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:09:51,036 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 [2022-07-13 03:09:51,036 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:51,036 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:51,036 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:51,036 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:51,036 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:09:51,036 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:51,037 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:51,037 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:51,037 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration5_Loop [2022-07-13 03:09:51,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:51,037 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:51,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:51,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:51,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:51,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:51,095 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:51,095 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:09:51,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:51,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:51,097 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) [2022-07-13 03:09:51,098 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 [2022-07-13 03:09:51,099 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 [2022-07-13 03:09:51,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:51,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:51,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:51,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:51,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:51,107 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:51,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:51,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:51,147 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 [2022-07-13 03:09:51,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:51,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:51,148 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) [2022-07-13 03:09:51,154 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 [2022-07-13 03:09:51,159 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 [2022-07-13 03:09:51,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:51,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:51,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:51,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:51,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:51,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:51,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:51,163 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:09:51,166 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:09:51,166 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:09:51,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:51,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:51,168 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) [2022-07-13 03:09:51,171 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 [2022-07-13 03:09:51,172 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:09:51,172 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:09:51,172 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:09:51,172 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1) = -2*ULTIMATE.start_main_~q~0#1 + 1 Supporting invariants [] [2022-07-13 03:09:51,187 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 [2022-07-13 03:09:51,188 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:09:51,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:51,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 03:09:51,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:51,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:09:51,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:51,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:51,305 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2022-07-13 03:09:51,306 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 214 states and 367 transitions. cyclomatic complexity: 158 Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:09:51,448 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 214 states and 367 transitions. cyclomatic complexity: 158. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 887 states and 1628 transitions. Complement of second has 25 states. [2022-07-13 03:09:51,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-07-13 03:09:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:09:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 39 transitions. [2022-07-13 03:09:51,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 39 transitions. Stem has 5 letters. Loop has 9 letters. [2022-07-13 03:09:51,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:51,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 39 transitions. Stem has 14 letters. Loop has 9 letters. [2022-07-13 03:09:51,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:51,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 39 transitions. Stem has 5 letters. Loop has 18 letters. [2022-07-13 03:09:51,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:51,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 887 states and 1628 transitions. [2022-07-13 03:09:51,464 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 58 [2022-07-13 03:09:51,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 887 states to 830 states and 1524 transitions. [2022-07-13 03:09:51,480 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 245 [2022-07-13 03:09:51,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 247 [2022-07-13 03:09:51,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 830 states and 1524 transitions. [2022-07-13 03:09:51,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:51,483 INFO L369 hiAutomatonCegarLoop]: Abstraction has 830 states and 1524 transitions. [2022-07-13 03:09:51,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states and 1524 transitions. [2022-07-13 03:09:51,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 758. [2022-07-13 03:09:51,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 490 states have (on average 1.2387755102040816) internal successors, (607), 491 states have internal predecessors, (607), 154 states have call successors, (154), 43 states have call predecessors, (154), 114 states have return successors, (650), 223 states have call predecessors, (650), 151 states have call successors, (650) [2022-07-13 03:09:51,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1411 transitions. [2022-07-13 03:09:51,551 INFO L392 hiAutomatonCegarLoop]: Abstraction has 758 states and 1411 transitions. [2022-07-13 03:09:51,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:09:51,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 03:09:51,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 03:09:51,552 INFO L87 Difference]: Start difference. First operand 758 states and 1411 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:09:51,587 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 [2022-07-13 03:09:51,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:09:51,608 INFO L93 Difference]: Finished difference Result 649 states and 994 transitions. [2022-07-13 03:09:51,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 03:09:51,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 649 states and 994 transitions. [2022-07-13 03:09:51,616 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 55 [2022-07-13 03:09:51,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 649 states to 312 states and 455 transitions. [2022-07-13 03:09:51,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 197 [2022-07-13 03:09:51,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 197 [2022-07-13 03:09:51,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 455 transitions. [2022-07-13 03:09:51,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:51,622 INFO L369 hiAutomatonCegarLoop]: Abstraction has 312 states and 455 transitions. [2022-07-13 03:09:51,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 455 transitions. [2022-07-13 03:09:51,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 298. [2022-07-13 03:09:51,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 197 states have (on average 1.2385786802030456) internal successors, (244), 200 states have internal predecessors, (244), 69 states have call successors, (69), 27 states have call predecessors, (69), 32 states have return successors, (128), 70 states have call predecessors, (128), 61 states have call successors, (128) [2022-07-13 03:09:51,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 441 transitions. [2022-07-13 03:09:51,634 INFO L392 hiAutomatonCegarLoop]: Abstraction has 298 states and 441 transitions. [2022-07-13 03:09:51,634 INFO L374 stractBuchiCegarLoop]: Abstraction has 298 states and 441 transitions. [2022-07-13 03:09:51,635 INFO L287 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-07-13 03:09:51,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 298 states and 441 transitions. [2022-07-13 03:09:51,637 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 55 [2022-07-13 03:09:51,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:51,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:51,638 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:51,638 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:51,638 INFO L752 eck$LassoCheckResult]: Stem: 3503#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 3504#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 3512#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 3509#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 3510#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 3520#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 3521#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 3764#partsENTRY ~p := #in~p;~q := #in~q; 3760#L20 assume ~p <= 0;#res := 1; 3761#partsFINAL assume true; 3701#partsEXIT >#68#return; 3542#L36-1 [2022-07-13 03:09:51,638 INFO L754 eck$LassoCheckResult]: Loop: 3542#L36-1 havoc main_#t~ret8#1; 3536#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 3537#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 3505#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 3511#partsENTRY ~p := #in~p;~q := #in~q; 3762#L20 assume ~p <= 0;#res := 1; 3763#partsFINAL assume true; 3765#partsEXIT >#68#return; 3542#L36-1 [2022-07-13 03:09:51,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:51,638 INFO L85 PathProgramCache]: Analyzing trace with hash 618653416, now seen corresponding path program 1 times [2022-07-13 03:09:51,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:51,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899457901] [2022-07-13 03:09:51,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:51,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:51,644 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:51,648 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:51,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:51,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1411370316, now seen corresponding path program 1 times [2022-07-13 03:09:51,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:51,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660412582] [2022-07-13 03:09:51,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:51,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:51,652 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:51,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:51,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:51,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1870257459, now seen corresponding path program 1 times [2022-07-13 03:09:51,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:51,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914689422] [2022-07-13 03:09:51,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:51,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:51,663 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:51,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:51,725 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:51,726 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:51,726 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:51,726 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:51,726 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:09:51,726 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:51,726 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:51,726 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:51,726 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration6_Loop [2022-07-13 03:09:51,726 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:51,726 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:51,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:51,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:51,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:51,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:51,765 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:51,765 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:09:51,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:51,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:51,766 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) [2022-07-13 03:09:51,768 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 [2022-07-13 03:09:51,769 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:51,769 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:51,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:51,783 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret8#1=1} Honda state: {ULTIMATE.start_main_#t~ret8#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:51,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-07-13 03:09:51,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:51,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:51,800 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) [2022-07-13 03:09:51,800 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 [2022-07-13 03:09:51,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:51,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:51,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-07-13 03:09:51,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:51,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:51,824 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) [2022-07-13 03:09:51,824 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 [2022-07-13 03:09:51,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:09:51,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:52,041 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:09:52,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-07-13 03:09:52,045 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:52,045 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:52,045 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:52,045 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:52,045 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:09:52,045 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,045 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:52,045 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:52,045 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration6_Loop [2022-07-13 03:09:52,045 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:52,045 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:52,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,078 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:52,079 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:09:52,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:52,080 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) [2022-07-13 03:09:52,088 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 [2022-07-13 03:09:52,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:52,095 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:52,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:52,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:52,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:52,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:52,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:52,098 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 [2022-07-13 03:09:52,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:52,135 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 [2022-07-13 03:09:52,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:52,136 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) [2022-07-13 03:09:52,139 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 [2022-07-13 03:09:52,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:52,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:52,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:52,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:52,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:52,147 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 [2022-07-13 03:09:52,149 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:52,149 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:52,163 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:09:52,176 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:09:52,176 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:09:52,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:52,180 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) [2022-07-13 03:09:52,187 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:09:52,188 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:09:52,188 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:09:52,188 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~q~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-07-13 03:09:52,209 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 [2022-07-13 03:09:52,214 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 [2022-07-13 03:09:52,215 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:09:52,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:52,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:09:52,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:52,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:09:52,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:52,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:52,332 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-07-13 03:09:52,332 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 298 states and 441 transitions. cyclomatic complexity: 151 Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:09:52,411 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 298 states and 441 transitions. cyclomatic complexity: 151. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 441 states and 656 transitions. Complement of second has 13 states. [2022-07-13 03:09:52,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:09:52,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:09:52,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 48 transitions. [2022-07-13 03:09:52,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 11 letters. Loop has 8 letters. [2022-07-13 03:09:52,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:52,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 19 letters. Loop has 8 letters. [2022-07-13 03:09:52,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:52,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 48 transitions. Stem has 11 letters. Loop has 16 letters. [2022-07-13 03:09:52,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:52,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 441 states and 656 transitions. [2022-07-13 03:09:52,424 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 74 [2022-07-13 03:09:52,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 441 states to 356 states and 523 transitions. [2022-07-13 03:09:52,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 225 [2022-07-13 03:09:52,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 226 [2022-07-13 03:09:52,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 523 transitions. [2022-07-13 03:09:52,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:52,431 INFO L369 hiAutomatonCegarLoop]: Abstraction has 356 states and 523 transitions. [2022-07-13 03:09:52,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 523 transitions. [2022-07-13 03:09:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 354. [2022-07-13 03:09:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 234 states have (on average 1.2179487179487178) internal successors, (285), 234 states have internal predecessors, (285), 81 states have call successors, (83), 34 states have call predecessors, (83), 39 states have return successors, (152), 85 states have call predecessors, (152), 71 states have call successors, (152) [2022-07-13 03:09:52,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 520 transitions. [2022-07-13 03:09:52,484 INFO L392 hiAutomatonCegarLoop]: Abstraction has 354 states and 520 transitions. [2022-07-13 03:09:52,484 INFO L374 stractBuchiCegarLoop]: Abstraction has 354 states and 520 transitions. [2022-07-13 03:09:52,484 INFO L287 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-07-13 03:09:52,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 354 states and 520 transitions. [2022-07-13 03:09:52,487 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 74 [2022-07-13 03:09:52,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:52,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:52,488 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:52,488 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-13 03:09:52,488 INFO L752 eck$LassoCheckResult]: Stem: 4339#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 4340#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 4347#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 4345#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 4346#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 4389#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 4348#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 4349#partsENTRY ~p := #in~p;~q := #in~q; 4471#L20 assume !(~p <= 0); 4472#L21 assume !(~q <= 0); 4597#L22 assume ~q > ~p; 4579#L22-1 call #t~ret0 := parts(~p, ~p);< 4596#partsENTRY [2022-07-13 03:09:52,488 INFO L754 eck$LassoCheckResult]: Loop: 4596#partsENTRY ~p := #in~p;~q := #in~q; 4631#L20 assume !(~p <= 0); 4629#L21 assume !(~q <= 0); 4628#L22 assume ~q > ~p; 4582#L22-1 call #t~ret0 := parts(~p, ~p);< 4596#partsENTRY [2022-07-13 03:09:52,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:52,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1998405187, now seen corresponding path program 1 times [2022-07-13 03:09:52,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:52,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997166391] [2022-07-13 03:09:52,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:52,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:52,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:52,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:52,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:52,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997166391] [2022-07-13 03:09:52,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997166391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:09:52,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:09:52,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 03:09:52,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912010874] [2022-07-13 03:09:52,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:09:52,538 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:09:52,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:52,539 INFO L85 PathProgramCache]: Analyzing trace with hash 28756405, now seen corresponding path program 1 times [2022-07-13 03:09:52,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:52,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911120586] [2022-07-13 03:09:52,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:52,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:52,542 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:52,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:52,589 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:52,590 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:52,590 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:52,590 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:52,590 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:09:52,590 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,590 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:52,590 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:52,590 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration7_Loop [2022-07-13 03:09:52,591 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:52,591 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:52,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,630 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:52,630 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:09:52,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:52,632 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) [2022-07-13 03:09:52,633 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 [2022-07-13 03:09:52,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:52,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:52,656 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:52,656 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_~q=0} Honda state: {parts_~q=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:52,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-07-13 03:09:52,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:52,678 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) [2022-07-13 03:09:52,678 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 [2022-07-13 03:09:52,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:52,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:52,701 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 [2022-07-13 03:09:52,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:52,704 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) [2022-07-13 03:09:52,705 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 [2022-07-13 03:09:52,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:09:52,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:52,811 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:09:52,814 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 [2022-07-13 03:09:52,814 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:52,814 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:52,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:52,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:52,815 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:09:52,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,815 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:52,815 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:52,815 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration7_Loop [2022-07-13 03:09:52,815 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:52,815 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:52,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:52,878 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:52,878 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:09:52,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:52,880 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) [2022-07-13 03:09:52,888 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 [2022-07-13 03:09:52,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:52,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:52,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:52,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:52,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:52,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:52,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:52,898 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 [2022-07-13 03:09:52,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:52,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:52,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:52,929 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) [2022-07-13 03:09:52,931 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 [2022-07-13 03:09:52,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:52,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:52,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:52,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:52,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:52,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:52,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:52,941 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 [2022-07-13 03:09:52,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:52,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:52,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:52,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:52,978 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) [2022-07-13 03:09:52,979 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 [2022-07-13 03:09:53,023 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 [2022-07-13 03:09:53,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:53,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:53,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:53,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:53,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:53,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:53,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:53,035 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:09:53,036 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-13 03:09:53,036 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:09:53,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:53,038 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) [2022-07-13 03:09:53,039 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 [2022-07-13 03:09:53,039 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:09:53,039 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:09:53,039 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:09:53,040 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(parts_#in~q) = 1*parts_#in~q Supporting invariants [] [2022-07-13 03:09:53,054 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 [2022-07-13 03:09:53,055 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:09:53,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:53,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:09:53,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:53,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:09:53,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:53,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:53,137 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-07-13 03:09:53,137 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 354 states and 520 transitions. cyclomatic complexity: 175 Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:09:53,226 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 354 states and 520 transitions. cyclomatic complexity: 175. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 1097 states and 1995 transitions. Complement of second has 41 states. [2022-07-13 03:09:53,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2022-07-13 03:09:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:09:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 41 transitions. [2022-07-13 03:09:53,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 41 transitions. Stem has 12 letters. Loop has 5 letters. [2022-07-13 03:09:53,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:53,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 41 transitions. Stem has 17 letters. Loop has 5 letters. [2022-07-13 03:09:53,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:53,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 41 transitions. Stem has 12 letters. Loop has 10 letters. [2022-07-13 03:09:53,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:53,229 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1097 states and 1995 transitions. [2022-07-13 03:09:53,245 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 218 [2022-07-13 03:09:53,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1097 states to 1016 states and 1851 transitions. [2022-07-13 03:09:53,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 550 [2022-07-13 03:09:53,262 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 558 [2022-07-13 03:09:53,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1016 states and 1851 transitions. [2022-07-13 03:09:53,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:53,262 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1016 states and 1851 transitions. [2022-07-13 03:09:53,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states and 1851 transitions. [2022-07-13 03:09:53,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 911. [2022-07-13 03:09:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 589 states have (on average 1.2393887945670627) internal successors, (730), 621 states have internal predecessors, (730), 228 states have call successors, (230), 98 states have call predecessors, (230), 94 states have return successors, (613), 191 states have call predecessors, (613), 203 states have call successors, (613) [2022-07-13 03:09:53,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1573 transitions. [2022-07-13 03:09:53,318 INFO L392 hiAutomatonCegarLoop]: Abstraction has 911 states and 1573 transitions. [2022-07-13 03:09:53,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:09:53,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 03:09:53,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 03:09:53,319 INFO L87 Difference]: Start difference. First operand 911 states and 1573 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 03:09:53,359 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 [2022-07-13 03:09:53,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:09:53,365 INFO L93 Difference]: Finished difference Result 546 states and 873 transitions. [2022-07-13 03:09:53,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 03:09:53,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 546 states and 873 transitions. [2022-07-13 03:09:53,372 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 70 [2022-07-13 03:09:53,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 546 states to 529 states and 855 transitions. [2022-07-13 03:09:53,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 218 [2022-07-13 03:09:53,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 218 [2022-07-13 03:09:53,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 529 states and 855 transitions. [2022-07-13 03:09:53,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:53,380 INFO L369 hiAutomatonCegarLoop]: Abstraction has 529 states and 855 transitions. [2022-07-13 03:09:53,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states and 855 transitions. [2022-07-13 03:09:53,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 524. [2022-07-13 03:09:53,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 353 states have (on average 1.2492917847025495) internal successors, (441), 370 states have internal predecessors, (441), 114 states have call successors, (115), 52 states have call predecessors, (115), 57 states have return successors, (294), 101 states have call predecessors, (294), 112 states have call successors, (294) [2022-07-13 03:09:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 850 transitions. [2022-07-13 03:09:53,398 INFO L392 hiAutomatonCegarLoop]: Abstraction has 524 states and 850 transitions. [2022-07-13 03:09:53,398 INFO L374 stractBuchiCegarLoop]: Abstraction has 524 states and 850 transitions. [2022-07-13 03:09:53,398 INFO L287 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-07-13 03:09:53,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 524 states and 850 transitions. [2022-07-13 03:09:53,402 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 70 [2022-07-13 03:09:53,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:53,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:53,403 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:53,403 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:53,403 INFO L752 eck$LassoCheckResult]: Stem: 7367#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 7368#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 7383#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 7381#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 7382#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 7405#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 7406#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 7848#partsENTRY ~p := #in~p;~q := #in~q; 7851#L20 assume ~p <= 0;#res := 1; 7849#partsFINAL assume true; 7847#partsEXIT >#68#return; 7846#L36-1 havoc main_#t~ret8#1; 7672#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 7670#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 7600#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 7599#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 7433#L35-3 [2022-07-13 03:09:53,403 INFO L754 eck$LassoCheckResult]: Loop: 7433#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 7466#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 7567#partsENTRY ~p := #in~p;~q := #in~q; 7628#L20 assume !(~p <= 0); 7629#L21 assume ~q <= 0;#res := 0; 7631#partsFINAL assume true; 7630#partsEXIT >#68#return; 7453#L36-1 havoc main_#t~ret8#1; 7432#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 7433#L35-3 [2022-07-13 03:09:53,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:53,403 INFO L85 PathProgramCache]: Analyzing trace with hash 399411315, now seen corresponding path program 2 times [2022-07-13 03:09:53,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:53,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731042671] [2022-07-13 03:09:53,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:53,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:53,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 03:09:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:53,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:53,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:53,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731042671] [2022-07-13 03:09:53,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731042671] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:09:53,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125906307] [2022-07-13 03:09:53,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 03:09:53,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:09:53,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:53,439 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 03:09:53,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-07-13 03:09:53,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 03:09:53,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 03:09:53,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:09:53,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:53,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:09:53,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:53,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125906307] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:09:53,541 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:09:53,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-07-13 03:09:53,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845001873] [2022-07-13 03:09:53,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:09:53,541 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:09:53,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:53,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1678232514, now seen corresponding path program 2 times [2022-07-13 03:09:53,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:53,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572198995] [2022-07-13 03:09:53,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:53,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:53,546 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:53,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:53,610 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:53,610 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:53,610 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:53,610 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:53,611 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:09:53,611 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,611 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:53,611 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:53,611 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration8_Loop [2022-07-13 03:09:53,611 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:53,611 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:53,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:53,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:53,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:53,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:53,637 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:53,637 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:09:53,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:53,639 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) [2022-07-13 03:09:53,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:53,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:53,661 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 [2022-07-13 03:09:53,671 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:53,671 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~p~0#1=1} Honda state: {ULTIMATE.start_main_~p~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:53,696 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 [2022-07-13 03:09:53,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:53,697 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) [2022-07-13 03:09:53,698 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 [2022-07-13 03:09:53,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:53,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:53,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:53,709 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:53,724 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 [2022-07-13 03:09:53,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:53,728 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) [2022-07-13 03:09:53,729 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 [2022-07-13 03:09:53,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:53,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:53,738 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:53,738 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret8#1=0} Honda state: {ULTIMATE.start_main_#t~ret8#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:53,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-07-13 03:09:53,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:53,753 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:09:53,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-07-13 03:09:53,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:53,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:53,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-07-13 03:09:53,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:53,784 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) [2022-07-13 03:09:53,787 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 [2022-07-13 03:09:53,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:09:53,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:53,835 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:09:53,841 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 [2022-07-13 03:09:53,842 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:53,842 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:53,842 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:53,842 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:53,842 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:09:53,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,842 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:53,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:53,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration8_Loop [2022-07-13 03:09:53,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:53,842 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:53,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:53,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:53,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:53,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:53,871 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:53,871 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:09:53,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:53,876 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) [2022-07-13 03:09:53,883 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 [2022-07-13 03:09:53,884 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 [2022-07-13 03:09:53,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:53,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:53,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:53,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:53,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:53,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:53,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:53,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:53,906 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 [2022-07-13 03:09:53,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:53,908 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) [2022-07-13 03:09:53,908 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 [2022-07-13 03:09:53,910 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 [2022-07-13 03:09:53,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:53,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:53,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:53,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:53,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:53,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:53,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:53,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:53,952 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 [2022-07-13 03:09:53,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:53,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:53,954 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) [2022-07-13 03:09:53,959 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 [2022-07-13 03:09:53,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:53,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:53,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:53,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:53,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:53,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:53,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:53,968 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 [2022-07-13 03:09:53,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:54,001 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 [2022-07-13 03:09:54,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:54,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:54,002 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) [2022-07-13 03:09:54,003 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 [2022-07-13 03:09:54,005 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 [2022-07-13 03:09:54,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:54,011 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:54,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:54,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:54,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:54,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:54,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:54,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:09:54,041 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:09:54,041 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-13 03:09:54,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:54,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:54,043 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) [2022-07-13 03:09:54,044 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 [2022-07-13 03:09:54,044 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:09:54,045 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:09:54,045 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:09:54,045 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1) = -2*ULTIMATE.start_main_~q~0#1 + 1 Supporting invariants [] [2022-07-13 03:09:54,066 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 [2022-07-13 03:09:54,067 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:09:54,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:54,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:09:54,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:54,172 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 [2022-07-13 03:09:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:54,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:09:54,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:54,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:54,238 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2022-07-13 03:09:54,238 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 524 states and 850 transitions. cyclomatic complexity: 341 Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:09:54,264 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 524 states and 850 transitions. cyclomatic complexity: 341. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 549 states and 878 transitions. Complement of second has 9 states. [2022-07-13 03:09:54,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:09:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:09:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2022-07-13 03:09:54,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 9 letters. [2022-07-13 03:09:54,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:54,265 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:09:54,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:54,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:09:54,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:54,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:09:54,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:54,406 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2022-07-13 03:09:54,407 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 524 states and 850 transitions. cyclomatic complexity: 341 Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:09:54,439 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 524 states and 850 transitions. cyclomatic complexity: 341. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 549 states and 878 transitions. Complement of second has 9 states. [2022-07-13 03:09:54,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:09:54,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:09:54,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2022-07-13 03:09:54,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 9 letters. [2022-07-13 03:09:54,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:54,441 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:09:54,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:54,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 03:09:54,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:54,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:09:54,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:54,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:54,579 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2022-07-13 03:09:54,579 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 524 states and 850 transitions. cyclomatic complexity: 341 Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:09:54,717 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 524 states and 850 transitions. cyclomatic complexity: 341. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 1496 states and 2733 transitions. Complement of second has 24 states. [2022-07-13 03:09:54,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2022-07-13 03:09:54,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:09:54,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 63 transitions. [2022-07-13 03:09:54,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 63 transitions. Stem has 16 letters. Loop has 9 letters. [2022-07-13 03:09:54,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:54,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 63 transitions. Stem has 25 letters. Loop has 9 letters. [2022-07-13 03:09:54,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:54,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 63 transitions. Stem has 16 letters. Loop has 18 letters. [2022-07-13 03:09:54,721 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:54,721 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1496 states and 2733 transitions. [2022-07-13 03:09:54,737 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 118 [2022-07-13 03:09:54,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1496 states to 1379 states and 2526 transitions. [2022-07-13 03:09:54,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 288 [2022-07-13 03:09:54,777 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 292 [2022-07-13 03:09:54,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1379 states and 2526 transitions. [2022-07-13 03:09:54,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:54,782 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1379 states and 2526 transitions. [2022-07-13 03:09:54,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states and 2526 transitions. [2022-07-13 03:09:54,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1298. [2022-07-13 03:09:54,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 831 states have (on average 1.2214199759326112) internal successors, (1015), 868 states have internal predecessors, (1015), 322 states have call successors, (323), 122 states have call predecessors, (323), 145 states have return successors, (1031), 307 states have call predecessors, (1031), 314 states have call successors, (1031) [2022-07-13 03:09:54,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 2369 transitions. [2022-07-13 03:09:54,836 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1298 states and 2369 transitions. [2022-07-13 03:09:54,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:09:54,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 03:09:54,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-13 03:09:54,837 INFO L87 Difference]: Start difference. First operand 1298 states and 2369 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 11 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:09:54,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:09:54,904 INFO L93 Difference]: Finished difference Result 1477 states and 2646 transitions. [2022-07-13 03:09:54,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 03:09:54,905 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1477 states and 2646 transitions. [2022-07-13 03:09:54,921 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 158 [2022-07-13 03:09:54,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1477 states to 1463 states and 2631 transitions. [2022-07-13 03:09:54,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 316 [2022-07-13 03:09:54,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 316 [2022-07-13 03:09:54,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1463 states and 2631 transitions. [2022-07-13 03:09:54,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:54,944 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1463 states and 2631 transitions. [2022-07-13 03:09:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states and 2631 transitions. [2022-07-13 03:09:54,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1303. [2022-07-13 03:09:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 832 states have (on average 1.2223557692307692) internal successors, (1017), 874 states have internal predecessors, (1017), 326 states have call successors, (327), 122 states have call predecessors, (327), 145 states have return successors, (1047), 306 states have call predecessors, (1047), 318 states have call successors, (1047) [2022-07-13 03:09:54,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 2391 transitions. [2022-07-13 03:09:54,995 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1303 states and 2391 transitions. [2022-07-13 03:09:54,995 INFO L374 stractBuchiCegarLoop]: Abstraction has 1303 states and 2391 transitions. [2022-07-13 03:09:54,995 INFO L287 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-07-13 03:09:54,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1303 states and 2391 transitions. [2022-07-13 03:09:55,002 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 112 [2022-07-13 03:09:55,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:55,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:55,006 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:55,006 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [8, 8, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-07-13 03:09:55,006 INFO L752 eck$LassoCheckResult]: Stem: 13676#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 13677#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 13691#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 13685#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 13686#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 13746#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 14625#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 14626#partsENTRY ~p := #in~p;~q := #in~q; 14633#L20 assume ~p <= 0;#res := 1; 14632#partsFINAL assume true; 14624#partsEXIT >#68#return; 14620#L36-1 havoc main_#t~ret8#1; 14540#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 14525#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 14514#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 14515#partsENTRY ~p := #in~p;~q := #in~q; 14518#L20 assume ~p <= 0;#res := 1; 14517#partsFINAL assume true; 14513#partsEXIT >#68#return; 14512#L36-1 havoc main_#t~ret8#1; 14511#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 13997#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 13955#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 13956#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 13982#L35-3 [2022-07-13 03:09:55,007 INFO L754 eck$LassoCheckResult]: Loop: 13982#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 13668#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 13759#partsENTRY ~p := #in~p;~q := #in~q; 13743#L20 assume !(~p <= 0); 13711#L21 assume !(~q <= 0); 13712#L22 assume !(~q > ~p); 13794#L23 call #t~ret1 := parts(~p - ~q, ~q);< 13971#partsENTRY ~p := #in~p;~q := #in~q; 13993#L20 assume !(~p <= 0); 13994#L21 assume !(~q <= 0); 14025#L22 assume !(~q > ~p); 13778#L23 call #t~ret1 := parts(~p - ~q, ~q);< 13971#partsENTRY ~p := #in~p;~q := #in~q; 13993#L20 assume ~p <= 0;#res := 1; 13989#partsFINAL assume true; 13970#partsEXIT >#64#return; 13773#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 13967#partsENTRY ~p := #in~p;~q := #in~q; 14030#L20 assume !(~p <= 0); 13994#L21 assume ~q <= 0;#res := 0; 14027#partsFINAL assume true; 13957#partsEXIT >#66#return; 13963#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 14321#partsFINAL assume true; 14299#partsEXIT >#64#return; 13835#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 13680#partsENTRY ~p := #in~p;~q := #in~q; 14317#L20 assume !(~p <= 0); 14315#L21 assume ~q <= 0;#res := 0; 14027#partsFINAL assume true; 13957#partsEXIT >#66#return; 13728#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 13729#partsFINAL assume true; 14645#partsEXIT >#68#return; 13758#L36-1 havoc main_#t~ret8#1; 14647#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 14001#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 13667#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 13759#partsENTRY ~p := #in~p;~q := #in~q; 13743#L20 assume !(~p <= 0); 13711#L21 assume !(~q <= 0); 13712#L22 assume !(~q > ~p); 13794#L23 call #t~ret1 := parts(~p - ~q, ~q);< 13971#partsENTRY ~p := #in~p;~q := #in~q; 13993#L20 assume ~p <= 0;#res := 1; 13989#partsFINAL assume true; 13970#partsEXIT >#64#return; 13776#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 13967#partsENTRY ~p := #in~p;~q := #in~q; 14030#L20 assume !(~p <= 0); 13994#L21 assume ~q <= 0;#res := 0; 14027#partsFINAL assume true; 13957#partsEXIT >#66#return; 13762#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 13763#partsFINAL assume true; 13757#partsEXIT >#68#return; 13753#L36-1 havoc main_#t~ret8#1; 13754#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 13749#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 13750#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 13983#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 13982#L35-3 [2022-07-13 03:09:55,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:55,008 INFO L85 PathProgramCache]: Analyzing trace with hash -856045304, now seen corresponding path program 3 times [2022-07-13 03:09:55,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:55,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791614686] [2022-07-13 03:09:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:55,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:55,029 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:55,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:55,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:55,041 INFO L85 PathProgramCache]: Analyzing trace with hash 144582960, now seen corresponding path program 1 times [2022-07-13 03:09:55,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:55,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694584629] [2022-07-13 03:09:55,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:55,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 03:09:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:55,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 03:09:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:55,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 03:09:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:55,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 03:09:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:55,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 03:09:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:55,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 03:09:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:55,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 03:09:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:55,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 03:09:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 52 proven. 48 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-13 03:09:55,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:55,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694584629] [2022-07-13 03:09:55,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694584629] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:09:55,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138820652] [2022-07-13 03:09:55,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:55,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:09:55,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:55,268 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 03:09:55,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2022-07-13 03:09:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:55,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 03:09:55,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:55,438 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 55 proven. 27 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-07-13 03:09:55,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:09:55,651 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 55 proven. 29 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-07-13 03:09:55,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138820652] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:09:55,651 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:09:55,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 10] total 23 [2022-07-13 03:09:55,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390665822] [2022-07-13 03:09:55,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:09:55,653 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:09:55,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:09:55,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-13 03:09:55,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2022-07-13 03:09:55,654 INFO L87 Difference]: Start difference. First operand 1303 states and 2391 transitions. cyclomatic complexity: 1113 Second operand has 23 states, 21 states have (on average 3.0476190476190474) internal successors, (64), 21 states have internal predecessors, (64), 11 states have call successors, (17), 1 states have call predecessors, (17), 8 states have return successors, (18), 14 states have call predecessors, (18), 11 states have call successors, (18) [2022-07-13 03:09:56,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:09:56,391 INFO L93 Difference]: Finished difference Result 2270 states and 4654 transitions. [2022-07-13 03:09:56,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-13 03:09:56,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2270 states and 4654 transitions. [2022-07-13 03:09:56,415 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 165 [2022-07-13 03:09:56,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2270 states to 1211 states and 2330 transitions. [2022-07-13 03:09:56,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 524 [2022-07-13 03:09:56,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 528 [2022-07-13 03:09:56,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1211 states and 2330 transitions. [2022-07-13 03:09:56,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:56,435 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1211 states and 2330 transitions. [2022-07-13 03:09:56,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states and 2330 transitions. [2022-07-13 03:09:56,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1117. [2022-07-13 03:09:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 758 states have (on average 1.1794195250659631) internal successors, (894), 798 states have internal predecessors, (894), 220 states have call successors, (221), 105 states have call predecessors, (221), 139 states have return successors, (936), 213 states have call predecessors, (936), 220 states have call successors, (936) [2022-07-13 03:09:56,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 2051 transitions. [2022-07-13 03:09:56,474 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1117 states and 2051 transitions. [2022-07-13 03:09:56,474 INFO L374 stractBuchiCegarLoop]: Abstraction has 1117 states and 2051 transitions. [2022-07-13 03:09:56,474 INFO L287 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-07-13 03:09:56,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1117 states and 2051 transitions. [2022-07-13 03:09:56,481 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 157 [2022-07-13 03:09:56,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:56,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:56,483 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:56,483 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 10, 6, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-07-13 03:09:56,483 INFO L752 eck$LassoCheckResult]: Stem: 17775#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 17776#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 17791#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 17786#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 17787#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 18359#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 18355#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 18356#partsENTRY ~p := #in~p;~q := #in~q; 18361#L20 assume ~p <= 0;#res := 1; 18358#partsFINAL assume true; 18354#partsEXIT >#68#return; 18352#L36-1 havoc main_#t~ret8#1; 18351#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 18350#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 18345#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 18346#partsENTRY ~p := #in~p;~q := #in~q; 18349#L20 assume ~p <= 0;#res := 1; 18348#partsFINAL assume true; 18344#partsEXIT >#68#return; 18340#L36-1 havoc main_#t~ret8#1; 18337#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 18334#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 18117#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 18332#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 18394#L35-3 [2022-07-13 03:09:56,483 INFO L754 eck$LassoCheckResult]: Loop: 18394#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 17763#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 18525#partsENTRY ~p := #in~p;~q := #in~q; 18539#L20 assume !(~p <= 0); 18540#L21 assume !(~q <= 0); 18584#L22 assume !(~q > ~p); 18440#L23 call #t~ret1 := parts(~p - ~q, ~q);< 18581#partsENTRY ~p := #in~p;~q := #in~q; 18587#L20 assume ~p <= 0;#res := 1; 18583#partsFINAL assume true; 18580#partsEXIT >#64#return; 18437#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 18576#partsENTRY ~p := #in~p;~q := #in~q; 18589#L20 assume !(~p <= 0); 18585#L21 assume !(~q <= 0); 18586#L22 assume !(~q > ~p); 18438#L23 call #t~ret1 := parts(~p - ~q, ~q);< 18581#partsENTRY ~p := #in~p;~q := #in~q; 18587#L20 assume ~p <= 0;#res := 1; 18583#partsFINAL assume true; 18580#partsEXIT >#64#return; 18441#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 18576#partsENTRY ~p := #in~p;~q := #in~q; 18589#L20 assume !(~p <= 0); 18585#L21 assume ~q <= 0;#res := 0; 18582#partsFINAL assume true; 18577#partsEXIT >#66#return; 18578#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 18592#partsFINAL assume true; 18570#partsEXIT >#66#return; 18567#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 18564#partsFINAL assume true; 18560#partsEXIT >#68#return; 18561#L36-1 havoc main_#t~ret8#1; 18569#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 18566#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 17765#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 18563#partsENTRY ~p := #in~p;~q := #in~q; 18606#L20 assume !(~p <= 0); 18540#L21 assume !(~q <= 0); 18584#L22 assume !(~q > ~p); 18440#L23 call #t~ret1 := parts(~p - ~q, ~q);< 18581#partsENTRY ~p := #in~p;~q := #in~q; 18587#L20 assume ~p <= 0;#res := 1; 18583#partsFINAL assume true; 18580#partsEXIT >#64#return; 18437#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 18576#partsENTRY ~p := #in~p;~q := #in~q; 18589#L20 assume !(~p <= 0); 18585#L21 assume !(~q <= 0); 18586#L22 assume !(~q > ~p); 18438#L23 call #t~ret1 := parts(~p - ~q, ~q);< 18581#partsENTRY ~p := #in~p;~q := #in~q; 18587#L20 assume ~p <= 0;#res := 1; 18583#partsFINAL assume true; 18580#partsEXIT >#64#return; 18441#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 18576#partsENTRY ~p := #in~p;~q := #in~q; 18589#L20 assume !(~p <= 0); 18585#L21 assume ~q <= 0;#res := 0; 18582#partsFINAL assume true; 18577#partsEXIT >#66#return; 18578#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 18592#partsFINAL assume true; 18570#partsEXIT >#66#return; 18567#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 18564#partsFINAL assume true; 18560#partsEXIT >#68#return; 18555#L36-1 havoc main_#t~ret8#1; 18535#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 18534#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 18531#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 18529#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 18394#L35-3 [2022-07-13 03:09:56,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:56,484 INFO L85 PathProgramCache]: Analyzing trace with hash -856045304, now seen corresponding path program 4 times [2022-07-13 03:09:56,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:56,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451762252] [2022-07-13 03:09:56,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:56,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:56,489 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:56,493 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:56,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:56,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1918357508, now seen corresponding path program 2 times [2022-07-13 03:09:56,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:56,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054866081] [2022-07-13 03:09:56,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:56,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 03:09:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 03:09:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 03:09:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 03:09:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 03:09:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 03:09:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 03:09:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 03:09:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 03:09:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 03:09:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:56,612 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 75 proven. 55 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-13 03:09:56,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:56,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054866081] [2022-07-13 03:09:56,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054866081] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:09:56,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255420015] [2022-07-13 03:09:56,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 03:09:56,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:09:56,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:56,614 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 03:09:56,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2022-07-13 03:09:56,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 03:09:56,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 03:09:56,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:09:56,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 137 proven. 10 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-07-13 03:09:56,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:09:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 24 proven. 67 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-07-13 03:09:56,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255420015] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:09:56,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:09:56,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 13 [2022-07-13 03:09:56,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301971284] [2022-07-13 03:09:56,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:09:56,945 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:09:56,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:09:56,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 03:09:56,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-13 03:09:56,946 INFO L87 Difference]: Start difference. First operand 1117 states and 2051 transitions. cyclomatic complexity: 967 Second operand has 13 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 9 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (16), 6 states have call predecessors, (16), 9 states have call successors, (16) [2022-07-13 03:09:57,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:09:57,092 INFO L93 Difference]: Finished difference Result 1175 states and 2055 transitions. [2022-07-13 03:09:57,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 03:09:57,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1175 states and 2055 transitions. [2022-07-13 03:09:57,104 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 160 [2022-07-13 03:09:57,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1175 states to 1134 states and 1958 transitions. [2022-07-13 03:09:57,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 494 [2022-07-13 03:09:57,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 494 [2022-07-13 03:09:57,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1134 states and 1958 transitions. [2022-07-13 03:09:57,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:57,119 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1134 states and 1958 transitions. [2022-07-13 03:09:57,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states and 1958 transitions. [2022-07-13 03:09:57,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1109. [2022-07-13 03:09:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 762 states have (on average 1.1876640419947506) internal successors, (905), 808 states have internal predecessors, (905), 214 states have call successors, (215), 112 states have call predecessors, (215), 133 states have return successors, (750), 188 states have call predecessors, (750), 210 states have call successors, (750) [2022-07-13 03:09:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1870 transitions. [2022-07-13 03:09:57,152 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1109 states and 1870 transitions. [2022-07-13 03:09:57,152 INFO L374 stractBuchiCegarLoop]: Abstraction has 1109 states and 1870 transitions. [2022-07-13 03:09:57,152 INFO L287 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-07-13 03:09:57,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1109 states and 1870 transitions. [2022-07-13 03:09:57,158 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 160 [2022-07-13 03:09:57,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:57,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:57,161 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:57,161 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:57,162 INFO L752 eck$LassoCheckResult]: Stem: 20638#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 20639#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 20648#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 20646#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 20647#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 21092#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 21089#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 21091#partsENTRY ~p := #in~p;~q := #in~q; 21094#L20 assume ~p <= 0;#res := 1; 21093#partsFINAL assume true; 21088#partsEXIT >#68#return; 21087#L36-1 havoc main_#t~ret8#1; 21085#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 21083#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 21079#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 21080#partsENTRY ~p := #in~p;~q := #in~q; 21096#L20 assume ~p <= 0;#res := 1; 21095#partsFINAL assume true; 21078#partsEXIT >#68#return; 21077#L36-1 havoc main_#t~ret8#1; 21067#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 20708#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 20663#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 20664#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 21249#L35-3 [2022-07-13 03:09:57,162 INFO L754 eck$LassoCheckResult]: Loop: 21249#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 21455#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 21460#partsENTRY ~p := #in~p;~q := #in~q; 21493#L20 assume !(~p <= 0); 21482#L21 assume ~q <= 0;#res := 0; 21478#partsFINAL assume true; 21459#partsEXIT >#68#return; 21457#L36-1 havoc main_#t~ret8#1; 21456#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 21454#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 21242#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 21450#partsENTRY ~p := #in~p;~q := #in~q; 21439#L20 assume !(~p <= 0); 21419#L21 assume !(~q <= 0); 21417#L22 assume !(~q > ~p); 21288#L23 call #t~ret1 := parts(~p - ~q, ~q);< 21463#partsENTRY ~p := #in~p;~q := #in~q; 21464#L20 assume ~p <= 0;#res := 1; 21462#partsFINAL assume true; 21320#partsEXIT >#64#return; 21289#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 21501#partsENTRY ~p := #in~p;~q := #in~q; 21507#L20 assume !(~p <= 0); 21505#L21 assume ~q <= 0;#res := 0; 21504#partsFINAL assume true; 21498#partsEXIT >#66#return; 21461#L23-2 #res := #t~ret1 + #t~ret2;havoc #t~ret1;havoc #t~ret2; 21458#partsFINAL assume true; 21448#partsEXIT >#68#return; 21449#L36-1 havoc main_#t~ret8#1; 21451#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 21443#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 21364#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 21365#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 21249#L35-3 [2022-07-13 03:09:57,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:57,162 INFO L85 PathProgramCache]: Analyzing trace with hash -856045304, now seen corresponding path program 5 times [2022-07-13 03:09:57,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:57,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596742770] [2022-07-13 03:09:57,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:57,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:57,169 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:57,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:57,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:57,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1754826426, now seen corresponding path program 3 times [2022-07-13 03:09:57,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:57,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255548459] [2022-07-13 03:09:57,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:57,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:57,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 03:09:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:57,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-13 03:09:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:57,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 03:09:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:57,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 03:09:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:57,264 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 03:09:57,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:57,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255548459] [2022-07-13 03:09:57,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255548459] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:09:57,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905231593] [2022-07-13 03:09:57,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 03:09:57,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:09:57,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:57,273 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 03:09:57,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2022-07-13 03:09:57,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-13 03:09:57,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 03:09:57,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 03:09:57,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:57,426 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 03:09:57,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:09:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 03:09:57,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905231593] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:09:57,530 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:09:57,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-07-13 03:09:57,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092084693] [2022-07-13 03:09:57,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:09:57,530 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-13 03:09:57,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:09:57,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-13 03:09:57,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-07-13 03:09:57,531 INFO L87 Difference]: Start difference. First operand 1109 states and 1870 transitions. cyclomatic complexity: 792 Second operand has 20 states, 19 states have (on average 1.894736842105263) internal successors, (36), 20 states have internal predecessors, (36), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-13 03:09:57,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:09:57,900 INFO L93 Difference]: Finished difference Result 1372 states and 2357 transitions. [2022-07-13 03:09:57,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-13 03:09:57,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1372 states and 2357 transitions. [2022-07-13 03:09:57,914 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 226 [2022-07-13 03:09:57,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1372 states to 1352 states and 2331 transitions. [2022-07-13 03:09:57,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 609 [2022-07-13 03:09:57,929 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 609 [2022-07-13 03:09:57,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1352 states and 2331 transitions. [2022-07-13 03:09:57,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:57,929 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1352 states and 2331 transitions. [2022-07-13 03:09:57,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states and 2331 transitions. [2022-07-13 03:09:57,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1115. [2022-07-13 03:09:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 768 states have (on average 1.1809895833333333) internal successors, (907), 810 states have internal predecessors, (907), 214 states have call successors, (215), 112 states have call predecessors, (215), 133 states have return successors, (747), 192 states have call predecessors, (747), 210 states have call successors, (747) [2022-07-13 03:09:57,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1869 transitions. [2022-07-13 03:09:57,964 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1115 states and 1869 transitions. [2022-07-13 03:09:57,964 INFO L374 stractBuchiCegarLoop]: Abstraction has 1115 states and 1869 transitions. [2022-07-13 03:09:57,964 INFO L287 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-07-13 03:09:57,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1115 states and 1869 transitions. [2022-07-13 03:09:57,970 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 154 [2022-07-13 03:09:57,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:57,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:57,971 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:57,971 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:57,971 INFO L752 eck$LassoCheckResult]: Stem: 23393#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 23394#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 23413#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 23409#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 23410#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 23999#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 23996#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 23997#partsENTRY ~p := #in~p;~q := #in~q; 24000#L20 assume ~p <= 0;#res := 1; 23998#partsFINAL assume true; 23995#partsEXIT >#68#return; 23992#L36-1 havoc main_#t~ret8#1; 23990#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 23989#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 23986#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 23988#partsENTRY ~p := #in~p;~q := #in~q; 23993#L20 assume ~p <= 0;#res := 1; 23991#partsFINAL assume true; 23985#partsEXIT >#68#return; 23982#L36-1 havoc main_#t~ret8#1; 23495#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 23489#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 23490#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 23481#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 23482#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 24088#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 24357#partsENTRY ~p := #in~p;~q := #in~q; 24294#L20 assume ~p <= 0;#res := 1; 24295#partsFINAL assume true; 24426#partsEXIT >#68#return; 24421#L36-1 [2022-07-13 03:09:57,971 INFO L754 eck$LassoCheckResult]: Loop: 24421#L36-1 havoc main_#t~ret8#1; 24416#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 24412#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 23383#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 24485#partsENTRY ~p := #in~p;~q := #in~q; 24100#L20 assume ~p <= 0;#res := 1; 24101#partsFINAL assume true; 24427#partsEXIT >#68#return; 24421#L36-1 [2022-07-13 03:09:57,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:57,971 INFO L85 PathProgramCache]: Analyzing trace with hash 768924849, now seen corresponding path program 6 times [2022-07-13 03:09:57,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:57,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970115463] [2022-07-13 03:09:57,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:57,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:57,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 03:09:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:57,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 03:09:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:57,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 03:09:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:57,999 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 03:09:57,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:57,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970115463] [2022-07-13 03:09:57,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970115463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:09:57,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:09:57,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 03:09:57,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351284925] [2022-07-13 03:09:57,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:09:58,000 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:09:58,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:58,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1411370316, now seen corresponding path program 2 times [2022-07-13 03:09:58,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:58,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162351167] [2022-07-13 03:09:58,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:58,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:58,002 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:58,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:58,059 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:58,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:58,059 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:58,059 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:58,059 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:09:58,059 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:58,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:58,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration12_Loop [2022-07-13 03:09:58,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:58,060 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:58,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:58,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:58,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:58,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:58,089 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:58,089 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:09:58,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:58,090 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) [2022-07-13 03:09:58,091 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 [2022-07-13 03:09:58,092 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:58,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:58,099 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:58,099 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7#1=0} Honda state: {ULTIMATE.start_main_#t~post7#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:58,114 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 [2022-07-13 03:09:58,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:58,115 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) [2022-07-13 03:09:58,115 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 [2022-07-13 03:09:58,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:58,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:58,128 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:58,128 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~p~0#1=0} Honda state: {ULTIMATE.start_main_~p~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:58,143 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 [2022-07-13 03:09:58,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:58,144 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) [2022-07-13 03:09:58,150 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 [2022-07-13 03:09:58,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:58,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:58,156 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:58,157 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret8#1=1} Honda state: {ULTIMATE.start_main_#t~ret8#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:58,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2022-07-13 03:09:58,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:58,173 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) [2022-07-13 03:09:58,174 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 [2022-07-13 03:09:58,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:58,175 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:58,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:58,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:58,222 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) [2022-07-13 03:09:58,225 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 [2022-07-13 03:09:58,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:09:58,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:58,435 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:09:58,438 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 [2022-07-13 03:09:58,438 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:58,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:58,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:58,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:58,439 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:09:58,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:58,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:58,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration12_Loop [2022-07-13 03:09:58,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:58,439 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:58,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:58,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:58,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:58,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:58,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:58,479 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:09:58,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:58,481 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) [2022-07-13 03:09:58,482 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 [2022-07-13 03:09:58,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:09:58,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:58,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:58,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:58,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:58,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:58,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:58,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:58,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:58,518 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 [2022-07-13 03:09:58,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:58,519 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) [2022-07-13 03:09:58,527 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 [2022-07-13 03:09:58,528 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 [2022-07-13 03:09:58,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:58,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:58,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:58,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:58,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:58,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:58,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:58,535 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:58,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2022-07-13 03:09:58,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:58,551 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) [2022-07-13 03:09:58,551 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 [2022-07-13 03:09:58,553 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 [2022-07-13 03:09:58,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:58,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:58,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:58,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:58,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:58,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:58,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:58,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:58,574 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 [2022-07-13 03:09:58,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:58,575 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:09:58,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-07-13 03:09:58,577 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 [2022-07-13 03:09:58,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:58,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:58,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:58,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:58,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:58,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:58,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:58,585 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:09:58,588 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-07-13 03:09:58,588 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:09:58,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:58,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:58,590 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) [2022-07-13 03:09:58,591 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:09:58,591 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:09:58,591 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:09:58,591 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~q~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~q~0#1 Supporting invariants [] [2022-07-13 03:09:58,595 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 [2022-07-13 03:09:58,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2022-07-13 03:09:58,608 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:09:58,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:58,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:09:58,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:58,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:09:58,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:58,788 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-07-13 03:09:58,788 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1115 states and 1869 transitions. cyclomatic complexity: 785 Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 03:09:58,830 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1115 states and 1869 transitions. cyclomatic complexity: 785. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 1134 states and 1890 transitions. Complement of second has 10 states. [2022-07-13 03:09:58,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:09:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 03:09:58,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2022-07-13 03:09:58,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 30 letters. Loop has 8 letters. [2022-07-13 03:09:58,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:58,832 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:09:58,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:58,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:09:58,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:58,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:09:58,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:58,986 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates [2022-07-13 03:09:58,986 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1115 states and 1869 transitions. cyclomatic complexity: 785 Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 03:09:59,035 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1115 states and 1869 transitions. cyclomatic complexity: 785. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 1132 states and 1887 transitions. Complement of second has 12 states. [2022-07-13 03:09:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2022-07-13 03:09:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 03:09:59,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2022-07-13 03:09:59,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 30 letters. Loop has 8 letters. [2022-07-13 03:09:59,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:59,036 INFO L577 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2022-07-13 03:09:59,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:59,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:09:59,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:59,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:09:59,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:09:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:09:59,190 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-07-13 03:09:59,190 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1115 states and 1869 transitions. cyclomatic complexity: 785 Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 03:09:59,297 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1115 states and 1869 transitions. cyclomatic complexity: 785. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 2646 states and 4484 transitions. Complement of second has 14 states. [2022-07-13 03:09:59,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-13 03:09:59,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 03:09:59,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 53 transitions. [2022-07-13 03:09:59,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 30 letters. Loop has 8 letters. [2022-07-13 03:09:59,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:59,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 38 letters. Loop has 8 letters. [2022-07-13 03:09:59,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:59,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 30 letters. Loop has 16 letters. [2022-07-13 03:09:59,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:09:59,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2646 states and 4484 transitions. [2022-07-13 03:09:59,308 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 [2022-07-13 03:09:59,330 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 230 [2022-07-13 03:09:59,354 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2646 states to 2212 states and 3720 transitions. [2022-07-13 03:09:59,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 549 [2022-07-13 03:09:59,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 593 [2022-07-13 03:09:59,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2212 states and 3720 transitions. [2022-07-13 03:09:59,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:59,356 INFO L369 hiAutomatonCegarLoop]: Abstraction has 2212 states and 3720 transitions. [2022-07-13 03:09:59,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2212 states and 3720 transitions. [2022-07-13 03:09:59,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2212 to 2055. [2022-07-13 03:09:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2055 states, 1388 states have (on average 1.1779538904899136) internal successors, (1635), 1477 states have internal predecessors, (1635), 431 states have call successors, (458), 236 states have call predecessors, (458), 236 states have return successors, (1392), 341 states have call predecessors, (1392), 403 states have call successors, (1392) [2022-07-13 03:09:59,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 3485 transitions. [2022-07-13 03:09:59,425 INFO L392 hiAutomatonCegarLoop]: Abstraction has 2055 states and 3485 transitions. [2022-07-13 03:09:59,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:09:59,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 03:09:59,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 03:09:59,426 INFO L87 Difference]: Start difference. First operand 2055 states and 3485 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-13 03:09:59,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:09:59,467 INFO L93 Difference]: Finished difference Result 1191 states and 1967 transitions. [2022-07-13 03:09:59,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 03:09:59,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1191 states and 1967 transitions. [2022-07-13 03:09:59,477 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 215 [2022-07-13 03:09:59,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1191 states to 794 states and 1416 transitions. [2022-07-13 03:09:59,489 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 426 [2022-07-13 03:09:59,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 435 [2022-07-13 03:09:59,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 794 states and 1416 transitions. [2022-07-13 03:09:59,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:09:59,490 INFO L369 hiAutomatonCegarLoop]: Abstraction has 794 states and 1416 transitions. [2022-07-13 03:09:59,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states and 1416 transitions. [2022-07-13 03:09:59,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 790. [2022-07-13 03:09:59,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 540 states have (on average 1.1592592592592592) internal successors, (626), 559 states have internal predecessors, (626), 167 states have call successors, (178), 96 states have call predecessors, (178), 83 states have return successors, (608), 134 states have call predecessors, (608), 157 states have call successors, (608) [2022-07-13 03:09:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1412 transitions. [2022-07-13 03:09:59,513 INFO L392 hiAutomatonCegarLoop]: Abstraction has 790 states and 1412 transitions. [2022-07-13 03:09:59,513 INFO L374 stractBuchiCegarLoop]: Abstraction has 790 states and 1412 transitions. [2022-07-13 03:09:59,513 INFO L287 stractBuchiCegarLoop]: ======== Iteration 13 ============ [2022-07-13 03:09:59,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 790 states and 1412 transitions. [2022-07-13 03:09:59,517 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 215 [2022-07-13 03:09:59,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:09:59,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:09:59,517 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:09:59,517 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-13 03:09:59,518 INFO L752 eck$LassoCheckResult]: Stem: 33107#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 33108#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 33121#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 33114#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 33115#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 33181#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 33246#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 33248#partsENTRY ~p := #in~p;~q := #in~q; 33251#L20 assume ~p <= 0;#res := 1; 33249#partsFINAL assume true; 33245#partsEXIT >#68#return; 33244#L36-1 havoc main_#t~ret8#1; 33243#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 33242#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 33236#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 33240#partsENTRY ~p := #in~p;~q := #in~q; 33235#L20 assume ~p <= 0;#res := 1; 33237#partsFINAL assume true; 33485#partsEXIT >#68#return; 33475#L36-1 havoc main_#t~ret8#1; 33471#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 33429#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 33418#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 33416#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 33414#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 33351#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 33413#partsENTRY ~p := #in~p;~q := #in~q; 33495#L20 assume !(~p <= 0); 33493#L21 assume !(~q <= 0); 33492#L22 assume !(~q > ~p); 33168#L23 call #t~ret1 := parts(~p - ~q, ~q);< 33434#partsENTRY [2022-07-13 03:09:59,518 INFO L754 eck$LassoCheckResult]: Loop: 33434#partsENTRY ~p := #in~p;~q := #in~q; 33496#L20 assume !(~p <= 0); 33497#L21 assume !(~q <= 0); 33484#L22 assume !(~q > ~p); 33171#L23 call #t~ret1 := parts(~p - ~q, ~q);< 33434#partsENTRY [2022-07-13 03:09:59,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:59,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1933114887, now seen corresponding path program 1 times [2022-07-13 03:09:59,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:59,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346094587] [2022-07-13 03:09:59,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:59,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:59,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 03:09:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:59,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 03:09:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:09:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-13 03:09:59,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:09:59,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346094587] [2022-07-13 03:09:59,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346094587] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 03:09:59,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 03:09:59,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 03:09:59,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585023488] [2022-07-13 03:09:59,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 03:09:59,548 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:09:59,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:09:59,548 INFO L85 PathProgramCache]: Analyzing trace with hash 28756500, now seen corresponding path program 1 times [2022-07-13 03:09:59,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:09:59,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58765744] [2022-07-13 03:09:59,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:09:59,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:09:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:59,551 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:09:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:09:59,553 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:09:59,594 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:59,594 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:59,594 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:59,594 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:59,594 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:09:59,595 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,595 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:59,595 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:59,595 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration13_Loop [2022-07-13 03:09:59,595 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:59,595 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:59,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,647 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:59,647 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:09:59,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:59,649 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) [2022-07-13 03:09:59,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:59,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:59,664 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 [2022-07-13 03:09:59,675 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:59,676 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret1=0} Honda state: {parts_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:59,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:59,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:59,699 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) [2022-07-13 03:09:59,700 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 [2022-07-13 03:09:59,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:59,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:59,709 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:59,710 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#res=0} Honda state: {parts_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:59,724 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 [2022-07-13 03:09:59,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:59,726 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) [2022-07-13 03:09:59,726 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 [2022-07-13 03:09:59,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:59,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:59,739 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:59,740 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret0=0} Honda state: {parts_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:59,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2022-07-13 03:09:59,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:59,759 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) [2022-07-13 03:09:59,759 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 [2022-07-13 03:09:59,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:59,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:59,767 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:09:59,767 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_~p=0} Honda state: {parts_~p=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:09:59,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:59,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:59,782 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) [2022-07-13 03:09:59,783 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 [2022-07-13 03:09:59,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:09:59,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:59,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2022-07-13 03:09:59,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:59,806 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:09:59,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2022-07-13 03:09:59,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:09:59,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:09:59,868 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:09:59,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2022-07-13 03:09:59,872 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:09:59,872 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:09:59,872 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:09:59,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:09:59,872 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:09:59,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:09:59,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:09:59,872 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration13_Loop [2022-07-13 03:09:59,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:09:59,872 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:09:59,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:09:59,916 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:09:59,917 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:09:59,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:59,918 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:09:59,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2022-07-13 03:09:59,920 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 [2022-07-13 03:09:59,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:59,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:59,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:59,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:59,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:59,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:59,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:59,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:59,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2022-07-13 03:09:59,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:59,961 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) [2022-07-13 03:09:59,962 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 [2022-07-13 03:09:59,963 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 [2022-07-13 03:09:59,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:59,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:59,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:59,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:59,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:59,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:59,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:59,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:09:59,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2022-07-13 03:09:59,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:09:59,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:09:59,986 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) [2022-07-13 03:09:59,986 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 [2022-07-13 03:09:59,988 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 [2022-07-13 03:09:59,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:09:59,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:09:59,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:09:59,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:09:59,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:09:59,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:09:59,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:09:59,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:00,009 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 [2022-07-13 03:10:00,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:00,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:00,011 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) [2022-07-13 03:10:00,013 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 [2022-07-13 03:10:00,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-13 03:10:00,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:00,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:00,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:00,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:00,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:00,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:00,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:00,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:00,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2022-07-13 03:10:00,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:00,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:00,040 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) [2022-07-13 03:10:00,041 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 [2022-07-13 03:10:00,042 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 [2022-07-13 03:10:00,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:00,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:00,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:00,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:00,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:00,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:00,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:00,050 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:10:00,052 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:10:00,052 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:10:00,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:00,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:00,053 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) [2022-07-13 03:10:00,054 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 [2022-07-13 03:10:00,055 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:10:00,055 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:10:00,055 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:10:00,055 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(parts_#in~p) = 1*parts_#in~p Supporting invariants [] [2022-07-13 03:10:00,070 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 [2022-07-13 03:10:00,070 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:10:00,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:00,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 03:10:00,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:00,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 03:10:00,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:00,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:00,230 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-07-13 03:10:00,230 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 790 states and 1412 transitions. cyclomatic complexity: 649 Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:10:00,312 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 790 states and 1412 transitions. cyclomatic complexity: 649. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 1070 states and 1853 transitions. Complement of second has 20 states. [2022-07-13 03:10:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2022-07-13 03:10:00,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:10:00,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 32 transitions. [2022-07-13 03:10:00,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 31 letters. Loop has 5 letters. [2022-07-13 03:10:00,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:00,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 36 letters. Loop has 5 letters. [2022-07-13 03:10:00,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:00,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 32 transitions. Stem has 31 letters. Loop has 10 letters. [2022-07-13 03:10:00,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:00,315 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1070 states and 1853 transitions. [2022-07-13 03:10:00,323 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 215 [2022-07-13 03:10:00,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1070 states to 967 states and 1725 transitions. [2022-07-13 03:10:00,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 471 [2022-07-13 03:10:00,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 489 [2022-07-13 03:10:00,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 967 states and 1725 transitions. [2022-07-13 03:10:00,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:00,335 INFO L369 hiAutomatonCegarLoop]: Abstraction has 967 states and 1725 transitions. [2022-07-13 03:10:00,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states and 1725 transitions. [2022-07-13 03:10:00,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 899. [2022-07-13 03:10:00,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 620 states have (on average 1.1725806451612903) internal successors, (727), 648 states have internal predecessors, (727), 184 states have call successors, (195), 116 states have call predecessors, (195), 95 states have return successors, (671), 134 states have call predecessors, (671), 172 states have call successors, (671) [2022-07-13 03:10:00,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1593 transitions. [2022-07-13 03:10:00,361 INFO L392 hiAutomatonCegarLoop]: Abstraction has 899 states and 1593 transitions. [2022-07-13 03:10:00,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:10:00,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 03:10:00,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 03:10:00,362 INFO L87 Difference]: Start difference. First operand 899 states and 1593 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 03:10:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:10:00,390 INFO L93 Difference]: Finished difference Result 677 states and 1138 transitions. [2022-07-13 03:10:00,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 03:10:00,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 677 states and 1138 transitions. [2022-07-13 03:10:00,395 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 139 [2022-07-13 03:10:00,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 677 states to 661 states and 1122 transitions. [2022-07-13 03:10:00,402 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 246 [2022-07-13 03:10:00,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 246 [2022-07-13 03:10:00,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 661 states and 1122 transitions. [2022-07-13 03:10:00,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:00,402 INFO L369 hiAutomatonCegarLoop]: Abstraction has 661 states and 1122 transitions. [2022-07-13 03:10:00,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states and 1122 transitions. [2022-07-13 03:10:00,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 627. [2022-07-13 03:10:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 438 states have (on average 1.1598173515981736) internal successors, (508), 459 states have internal predecessors, (508), 124 states have call successors, (135), 79 states have call predecessors, (135), 65 states have return successors, (445), 88 states have call predecessors, (445), 116 states have call successors, (445) [2022-07-13 03:10:00,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 1088 transitions. [2022-07-13 03:10:00,419 INFO L392 hiAutomatonCegarLoop]: Abstraction has 627 states and 1088 transitions. [2022-07-13 03:10:00,419 INFO L374 stractBuchiCegarLoop]: Abstraction has 627 states and 1088 transitions. [2022-07-13 03:10:00,419 INFO L287 stractBuchiCegarLoop]: ======== Iteration 14 ============ [2022-07-13 03:10:00,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 627 states and 1088 transitions. [2022-07-13 03:10:00,422 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 130 [2022-07-13 03:10:00,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:00,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:00,423 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:00,423 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:00,423 INFO L752 eck$LassoCheckResult]: Stem: 36704#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 36705#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 36741#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 36739#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 36740#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 36875#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 36870#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 36872#partsENTRY ~p := #in~p;~q := #in~q; 36876#L20 assume ~p <= 0;#res := 1; 36873#partsFINAL assume true; 36869#partsEXIT >#68#return; 36868#L36-1 havoc main_#t~ret8#1; 36857#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 36856#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 36836#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 36854#partsENTRY ~p := #in~p;~q := #in~q; 36850#L20 assume ~p <= 0;#res := 1; 36851#partsFINAL assume true; 36835#partsEXIT >#68#return; 36837#L36-1 havoc main_#t~ret8#1; 37311#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 36879#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 36880#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 36833#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 36834#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 36963#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 37310#partsENTRY ~p := #in~p;~q := #in~q; 37314#L20 assume !(~p <= 0); 37313#L21 assume ~q <= 0;#res := 0; 37312#partsFINAL assume true; 37309#partsEXIT >#68#return; 36828#L36-1 havoc main_#t~ret8#1; 36829#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 36962#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 36767#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 36957#partsENTRY ~p := #in~p;~q := #in~q; 37034#L20 assume !(~p <= 0); 37032#L21 assume !(~q <= 0); 37029#L22 assume !(~q > ~p); 36794#L23 call #t~ret1 := parts(~p - ~q, ~q);< 37040#partsENTRY ~p := #in~p;~q := #in~q; 37041#L20 assume ~p <= 0;#res := 1; 37067#partsFINAL assume true; 37066#partsEXIT >#64#return; 36785#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 37065#partsENTRY [2022-07-13 03:10:00,423 INFO L754 eck$LassoCheckResult]: Loop: 37065#partsENTRY ~p := #in~p;~q := #in~q; 37085#L20 assume !(~p <= 0); 37083#L21 assume !(~q <= 0); 36926#L22 assume !(~q > ~p); 36773#L23 call #t~ret1 := parts(~p - ~q, ~q);< 36932#partsENTRY ~p := #in~p;~q := #in~q; 36935#L20 assume ~p <= 0;#res := 1; 36933#partsFINAL assume true; 36931#partsEXIT >#64#return; 36774#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 37065#partsENTRY [2022-07-13 03:10:00,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:00,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1585293162, now seen corresponding path program 1 times [2022-07-13 03:10:00,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:00,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355272463] [2022-07-13 03:10:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:00,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:00,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:00,429 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:00,435 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:00,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:00,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1964641052, now seen corresponding path program 1 times [2022-07-13 03:10:00,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:00,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351818694] [2022-07-13 03:10:00,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:00,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:00,438 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:00,440 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:00,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:00,440 INFO L85 PathProgramCache]: Analyzing trace with hash -574602427, now seen corresponding path program 2 times [2022-07-13 03:10:00,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:00,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465881129] [2022-07-13 03:10:00,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:00,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 03:10:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:00,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 03:10:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:00,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 03:10:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-13 03:10:00,514 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 [2022-07-13 03:10:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:00,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 03:10:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:00,521 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 36 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-13 03:10:00,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:10:00,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465881129] [2022-07-13 03:10:00,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465881129] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:10:00,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646114577] [2022-07-13 03:10:00,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 03:10:00,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:10:00,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:00,522 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 03:10:00,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2022-07-13 03:10:00,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 03:10:00,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 03:10:00,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 03:10:00,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:00,630 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 56 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-13 03:10:00,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:10:00,659 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 36 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-13 03:10:00,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646114577] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:10:00,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:10:00,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2022-07-13 03:10:00,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196086490] [2022-07-13 03:10:00,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:10:00,757 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:00,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:00,757 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:00,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:00,757 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:00,757 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:00,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:00,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:00,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration14_Loop [2022-07-13 03:10:00,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:00,758 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:00,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:00,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:00,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:00,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:00,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:00,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:00,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:00,801 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:00,802 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:00,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:00,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:00,803 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) [2022-07-13 03:10:00,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:00,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:00,821 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 [2022-07-13 03:10:00,831 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:00,831 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret2=0} Honda state: {parts_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:00,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:00,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:00,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:00,856 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) [2022-07-13 03:10:00,857 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 [2022-07-13 03:10:00,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:00,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:00,883 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:00,883 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret1=0} Honda state: {parts_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:00,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:00,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:00,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:00,907 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:00,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:00,911 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:00,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2022-07-13 03:10:00,931 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:00,931 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_~p=0} Honda state: {parts_~p=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:00,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:00,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:00,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:00,955 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:00,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:00,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:00,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2022-07-13 03:10:00,983 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:00,984 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#res=0} Honda state: {parts_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:01,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:01,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,007 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:01,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:01,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2022-07-13 03:10:01,031 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:01,032 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_~q=0} Honda state: {parts_~q=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:01,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:01,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,055 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2022-07-13 03:10:01,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:01,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:01,083 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-13 03:10:01,083 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {parts_#t~ret0=0} Honda state: {parts_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-13 03:10:01,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:01,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,108 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:01,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:01,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2022-07-13 03:10:01,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:01,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,155 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:01,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:01,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2022-07-13 03:10:01,215 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-13 03:10:01,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:01,219 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:01,219 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:01,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:01,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:01,219 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-13 03:10:01,219 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:01,220 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:01,220 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration14_Loop [2022-07-13 03:10:01,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:01,220 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:01,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:01,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:01,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:01,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:01,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:01,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:01,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:01,267 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:01,267 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-13 03:10:01,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,268 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,280 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 [2022-07-13 03:10:01,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:01,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:01,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:01,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:01,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:01,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:01,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:01,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2022-07-13 03:10:01,299 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:01,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2022-07-13 03:10:01,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,321 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2022-07-13 03:10:01,322 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 [2022-07-13 03:10:01,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:01,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:01,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:01,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:01,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:01,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:01,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:01,329 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:01,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:01,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,345 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2022-07-13 03:10:01,347 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 [2022-07-13 03:10:01,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:01,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:01,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:01,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:01,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:01,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:01,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:01,354 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:01,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2022-07-13 03:10:01,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,369 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,375 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 [2022-07-13 03:10:01,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:01,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:01,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:01,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:01,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:01,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:01,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:01,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2022-07-13 03:10:01,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:01,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:01,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,422 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2022-07-13 03:10:01,424 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 [2022-07-13 03:10:01,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:01,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:01,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:01,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:01,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:01,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:01,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:01,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:01,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2022-07-13 03:10:01,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,450 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2022-07-13 03:10:01,452 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 [2022-07-13 03:10:01,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:01,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:01,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:01,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:01,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:01,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:01,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:01,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-13 03:10:01,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:01,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,475 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2022-07-13 03:10:01,478 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 [2022-07-13 03:10:01,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-13 03:10:01,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-13 03:10:01,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-13 03:10:01,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-13 03:10:01,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-13 03:10:01,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-13 03:10:01,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-13 03:10:01,487 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-13 03:10:01,488 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-07-13 03:10:01,489 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-07-13 03:10:01,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:01,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:01,490 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:01,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2022-07-13 03:10:01,492 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-13 03:10:01,492 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-13 03:10:01,492 INFO L513 LassoAnalysis]: Proved termination. [2022-07-13 03:10:01,492 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(parts_#in~q) = 1*parts_#in~q Supporting invariants [] [2022-07-13 03:10:01,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2022-07-13 03:10:01,507 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-13 03:10:01,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:01,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-13 03:10:01,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:01,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 03:10:01,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 03:10:01,719 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-07-13 03:10:01,719 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 627 states and 1088 transitions. cyclomatic complexity: 485 Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 03:10:01,898 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 627 states and 1088 transitions. cyclomatic complexity: 485. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 2089 states and 3672 transitions. Complement of second has 37 states. [2022-07-13 03:10:01,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2022-07-13 03:10:01,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 03:10:01,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 70 transitions. [2022-07-13 03:10:01,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 45 letters. Loop has 10 letters. [2022-07-13 03:10:01,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:01,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 55 letters. Loop has 10 letters. [2022-07-13 03:10:01,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:01,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 70 transitions. Stem has 45 letters. Loop has 20 letters. [2022-07-13 03:10:01,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-13 03:10:01,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2089 states and 3672 transitions. [2022-07-13 03:10:01,933 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 179 [2022-07-13 03:10:01,949 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2089 states to 1470 states and 2571 transitions. [2022-07-13 03:10:01,949 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 435 [2022-07-13 03:10:01,950 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 446 [2022-07-13 03:10:01,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1470 states and 2571 transitions. [2022-07-13 03:10:01,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:01,951 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1470 states and 2571 transitions. [2022-07-13 03:10:01,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1470 states and 2571 transitions. [2022-07-13 03:10:01,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2022-07-13 03:10:01,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1470 to 1249. [2022-07-13 03:10:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 866 states have (on average 1.1939953810623556) internal successors, (1034), 921 states have internal predecessors, (1034), 256 states have call successors, (267), 169 states have call predecessors, (267), 127 states have return successors, (803), 158 states have call predecessors, (803), 229 states have call successors, (803) [2022-07-13 03:10:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 2104 transitions. [2022-07-13 03:10:01,994 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1249 states and 2104 transitions. [2022-07-13 03:10:01,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 03:10:01,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 03:10:01,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-13 03:10:01,995 INFO L87 Difference]: Start difference. First operand 1249 states and 2104 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-13 03:10:02,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 03:10:02,076 INFO L93 Difference]: Finished difference Result 1607 states and 2590 transitions. [2022-07-13 03:10:02,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 03:10:02,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1607 states and 2590 transitions. [2022-07-13 03:10:02,088 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 221 [2022-07-13 03:10:02,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1607 states to 1518 states and 2465 transitions. [2022-07-13 03:10:02,103 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 424 [2022-07-13 03:10:02,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 424 [2022-07-13 03:10:02,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1518 states and 2465 transitions. [2022-07-13 03:10:02,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-13 03:10:02,103 INFO L369 hiAutomatonCegarLoop]: Abstraction has 1518 states and 2465 transitions. [2022-07-13 03:10:02,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states and 2465 transitions. [2022-07-13 03:10:02,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1437. [2022-07-13 03:10:02,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 993 states have (on average 1.190332326283988) internal successors, (1182), 1062 states have internal predecessors, (1182), 295 states have call successors, (310), 193 states have call predecessors, (310), 149 states have return successors, (873), 181 states have call predecessors, (873), 260 states have call successors, (873) [2022-07-13 03:10:02,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 2365 transitions. [2022-07-13 03:10:02,145 INFO L392 hiAutomatonCegarLoop]: Abstraction has 1437 states and 2365 transitions. [2022-07-13 03:10:02,145 INFO L374 stractBuchiCegarLoop]: Abstraction has 1437 states and 2365 transitions. [2022-07-13 03:10:02,145 INFO L287 stractBuchiCegarLoop]: ======== Iteration 15 ============ [2022-07-13 03:10:02,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1437 states and 2365 transitions. [2022-07-13 03:10:02,151 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 204 [2022-07-13 03:10:02,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:10:02,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:10:02,152 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 03:10:02,152 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-13 03:10:02,153 INFO L752 eck$LassoCheckResult]: Stem: 42870#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 42871#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 42888#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 42886#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 42887#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 43001#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 43078#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 43079#partsENTRY ~p := #in~p;~q := #in~q; 43081#L20 assume ~p <= 0;#res := 1; 43080#partsFINAL assume true; 43077#partsEXIT >#68#return; 43072#L36-1 havoc main_#t~ret8#1; 43062#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 43061#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 43045#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 43054#partsENTRY ~p := #in~p;~q := #in~q; 43044#L20 assume ~p <= 0;#res := 1; 43046#partsFINAL assume true; 43163#partsEXIT >#68#return; 43161#L36-1 havoc main_#t~ret8#1; 43158#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 43157#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 43156#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 43154#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 43152#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 43149#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 43150#partsENTRY ~p := #in~p;~q := #in~q; 43155#L20 assume !(~p <= 0); 43153#L21 assume ~q <= 0;#res := 0; 43151#partsFINAL assume true; 43148#partsEXIT >#68#return; 43147#L36-1 havoc main_#t~ret8#1; 43146#L35-2 main_#t~post7#1 := main_~q~0#1;main_~q~0#1 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 43144#L35-3 assume !!(main_~q~0#1 <= main_~x~0#1); 43145#L36 call main_#t~ret8#1 := parts(main_~p~0#1, main_~q~0#1);< 43331#partsENTRY ~p := #in~p;~q := #in~q; 43330#L20 assume !(~p <= 0); 43329#L21 assume !(~q <= 0); 43328#L22 assume ~q > ~p; 43056#L22-1 call #t~ret0 := parts(~p, ~p);< 43301#partsENTRY ~p := #in~p;~q := #in~q; 43292#L20 assume !(~p <= 0); 44030#L21 assume !(~q <= 0); 43990#L22 assume !(~q > ~p); 43987#L23 call #t~ret1 := parts(~p - ~q, ~q);< 43988#partsENTRY ~p := #in~p;~q := #in~q; 44028#L20 assume ~p <= 0;#res := 1; 43989#partsFINAL assume true; 43986#partsEXIT >#64#return; 42908#L23-1 call #t~ret2 := parts(~p, ~q - 1);< 44035#partsENTRY ~p := #in~p;~q := #in~q; 44036#L20 assume !(~p <= 0); 44039#L21 assume !(~q <= 0); 42904#L22 [2022-07-13 03:10:02,153 INFO L754 eck$LassoCheckResult]: Loop: 42904#L22 assume !(~q > ~p); 42905#L23 call #t~ret1 := parts(~p - ~q, ~q);< 44084#partsENTRY ~p := #in~p;~q := #in~q; 44074#L20 assume !(~p <= 0); 44083#L21 assume !(~q <= 0); 42904#L22 [2022-07-13 03:10:02,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:02,153 INFO L85 PathProgramCache]: Analyzing trace with hash -505554686, now seen corresponding path program 1 times [2022-07-13 03:10:02,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:02,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822714708] [2022-07-13 03:10:02,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:02,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:02,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 03:10:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:02,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 03:10:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:02,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-13 03:10:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-13 03:10:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:02,195 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-13 03:10:02,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 03:10:02,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822714708] [2022-07-13 03:10:02,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822714708] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 03:10:02,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633098658] [2022-07-13 03:10:02,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:02,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:10:02,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:02,197 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 03:10:02,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2022-07-13 03:10:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 03:10:02,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 03:10:02,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 03:10:02,268 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-13 03:10:02,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 03:10:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-07-13 03:10:02,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633098658] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 03:10:02,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 03:10:02,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2022-07-13 03:10:02,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294401046] [2022-07-13 03:10:02,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 03:10:02,294 INFO L757 eck$LassoCheckResult]: stem already infeasible [2022-07-13 03:10:02,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:10:02,295 INFO L85 PathProgramCache]: Analyzing trace with hash 43435410, now seen corresponding path program 2 times [2022-07-13 03:10:02,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:10:02,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294190850] [2022-07-13 03:10:02,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:10:02,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:10:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:02,297 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:10:02,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:10:02,299 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:10:02,371 INFO L210 LassoAnalysis]: Preferences: [2022-07-13 03:10:02,371 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-13 03:10:02,371 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-13 03:10:02,371 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-13 03:10:02,371 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-13 03:10:02,372 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:02,372 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-13 03:10:02,372 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-13 03:10:02,372 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parts.c_Iteration15_Loop [2022-07-13 03:10:02,372 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-13 03:10:02,372 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-13 03:10:02,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:02,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:02,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:02,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:02,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-13 03:10:02,433 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-13 03:10:02,433 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-13 03:10:02,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:02,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:02,434 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:02,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2022-07-13 03:10:02,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-13 03:10:02,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-13 03:10:02,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2022-07-13 03:10:02,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:10:02,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:10:02,467 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-13 03:10:02,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2022-07-13 03:10:02,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-13 03:10:02,469 INFO L160 nArgumentSynthesizer]: Using integer mode.